initial commit 2

20 files changed, 1698 insertions, 0 deletions

diff --git a/addons/snailmail/static/src/bugfix/bugfix.js b/addons/snailmail/static/src/bugfix/bugfix.js
new file mode 100644
index 00000000..a375f40f
--- /dev/null
+++ b/addons/snailmail/static/src/bugfix/bugfix.js
@@ -0,0 +1,10 @@
+/**
+ * This file allows introducing new JS modules without contaminating other files.
+ * This is useful when bug fixing requires adding such JS modules in stable
+ * versions of Odoo. Any module that is defined in this file should be isolated
+ * in its own file in master.
+ */
+odoo.define('snailmail/static/src/bugfix/bugfix.js', function (require) {
+'use strict';
+
+});
diff --git a/addons/snailmail/static/src/bugfix/bugfix.scss b/addons/snailmail/static/src/bugfix/bugfix.scss
new file mode 100644
index 00000000..c4272e52
--- /dev/null
+++ b/addons/snailmail/static/src/bugfix/bugfix.scss
@@ -0,0 +1,6 @@
+/**
+* This file allows introducing new styles without contaminating other files.
+* This is useful when bug fixing requires adding new components for instance in
+* stable versions of Odoo. Any style that is defined in this file should be isolated
+* in its own file in master.
+*/
diff --git a/addons/snailmail/static/src/bugfix/bugfix.xml b/addons/snailmail/static/src/bugfix/bugfix.xml
new file mode 100644
index 00000000..c17906f7
--- /dev/null
+++ b/addons/snailmail/static/src/bugfix/bugfix.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+
+<!--
+    This file allows introducing new static templates without contaminating other files.
+    This is useful when bug fixing requires adding new components for instance in stable
+    versions of Odoo. Any template that is defined in this file should be isolated
+    in its own file in master.
+-->
+
+</templates>
diff --git a/addons/snailmail/static/src/bugfix/bugfix_tests.js b/addons/snailmail/static/src/bugfix/bugfix_tests.js
new file mode 100644
index 00000000..beffb29b
--- /dev/null
+++ b/addons/snailmail/static/src/bugfix/bugfix_tests.js
@@ -0,0 +1,18 @@
+odoo.define('snailmail/static/src/bugfix/bugfix_tests.js', function (require) {
+'use strict';
+
+/**
+ * This file allows introducing new QUnit test modules without contaminating
+ * other test files. This is useful when bug fixing requires adding new
+ * components for instance in stable versions of Odoo. Any test that is defined
+ * in this file should be isolated in its own file in master.
+ */
+QUnit.module('snailmail', {}, function () {
+QUnit.module('bugfix', {}, function () {
+QUnit.module('bugfix_tests.js', {
+
+});
+});
+});
+
+});
diff --git a/addons/snailmail/static/src/components/message/message.js b/addons/snailmail/static/src/components/message/message.js
new file mode 100644
index 00000000..1033c901
--- /dev/null
+++ b/addons/snailmail/static/src/components/message/message.js
@@ -0,0 +1,87 @@
+odoo.define('snailmail/static/src/components/message/message.js', function (require) {
+'use strict';
+
+const components = {
+    Message: require('mail/static/src/components/message/message.js'),
+    SnailmailErrorDialog: require('snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.js'),
+    SnailmailNotificationPopover: require('snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.js'),
+};
+
+const { patch } = require('web.utils');
+
+const { useState } = owl;
+
+Object.assign(components.Message.components, {
+    SnailmailErrorDialog: components.SnailmailErrorDialog,
+    SnailmailNotificationPopover: components.SnailmailNotificationPopover,
+});
+
+patch(components.Message, 'snailmail/static/src/components/message/message.js', {
+    /**
+     * @override
+     */
+    _constructor() {
+        this._super(...arguments);
+        this.snailmailState = useState({
+            // Determine if the error dialog is displayed.
+            hasDialog: false,
+        });
+    },
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * @override
+     */
+    _onClickFailure() {
+        if (this.message.message_type === 'snailmail') {
+            /**
+             * Messages from snailmail are considered to have at most one
+             * notification. The failure type of the whole message is considered
+             * to be the same as the one from that first notification, and the
+             * click action will depend on it.
+             */
+            switch (this.message.notifications[0].failure_type) {
+                case 'sn_credit':
+                    // URL only used in this component, not received at init
+                    this.env.messaging.fetchSnailmailCreditsUrl();
+                    this.snailmailState.hasDialog = true;
+                    break;
+                case 'sn_error':
+                    this.snailmailState.hasDialog = true;
+                    break;
+                case 'sn_fields':
+                    this.message.openMissingFieldsLetterAction();
+                    break;
+                case 'sn_format':
+                    this.message.openFormatLetterAction();
+                    break;
+                case 'sn_price':
+                    this.snailmailState.hasDialog = true;
+                    break;
+                case 'sn_trial':
+                    // URL only used in this component, not received at init
+                    this.env.messaging.fetchSnailmailCreditsUrlTrial();
+                    this.snailmailState.hasDialog = true;
+                    break;
+            }
+        } else {
+            this._super(...arguments);
+        }
+    },
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * @private
+     */
+    _onDialogClosedSnailmailError() {
+        this.snailmailState.hasDialog = false;
+    },
+});
+
+});
diff --git a/addons/snailmail/static/src/components/message/message.xml b/addons/snailmail/static/src/components/message/message.xml
new file mode 100644
index 00000000..d563083f
--- /dev/null
+++ b/addons/snailmail/static/src/components/message/message.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+
+    <t t-inherit="mail.Message" t-inherit-mode="extension">
+        <xpath expr="//*[@name='failureIcon']" position="replace">
+            <t t-if="message.message_type === 'snailmail'">
+                <i class="o_Message_notificationIcon fa fa-paper-plane"/>
+            </t>
+            <t t-else="">$0</t>
+        </xpath>
+
+        <xpath expr="//*[@name='notificationIcon']" position="replace">
+            <t t-if="message.message_type === 'snailmail'">
+                <i class="o_Message_notificationIcon fa fa-paper-plane"/>
+            </t>
+            <t t-else="">$0</t>
+        </xpath>
+
+        <xpath expr="//*[@name='rootCondition']" position="inside">
+            <t t-if="snailmailState.hasDialog">
+                <SnailmailErrorDialog messageLocalId="message.localId" t-on-dialog-closed="_onDialogClosedSnailmailError"/>
+            </t>
+        </xpath>
+
+        <!--
+            It was decided that the information displayed for snailmail messages
+            has to be different than for standard messages, see task-1907998.
+        -->
+        <xpath expr="//NotificationPopover" position="replace">
+            <t t-if="message.message_type === 'snailmail'">
+                <SnailmailNotificationPopover messageLocalId="message.localId"/>
+            </t>
+            <t t-else="">$0</t>
+        </xpath>
+    </t>
+
+</templates>
diff --git a/addons/snailmail/static/src/components/message/message_tests.js b/addons/snailmail/static/src/components/message/message_tests.js
new file mode 100644
index 00000000..67044509
--- /dev/null
+++ b/addons/snailmail/static/src/components/message/message_tests.js
@@ -0,0 +1,680 @@
+odoo.define('snailmail/static/src/components/message/message_tests.js', function (require) {
+'use strict';
+
+const components = {
+    Message: require('mail/static/src/components/message/message.js'),
+};
+const {
+    afterEach,
+    afterNextRender,
+    beforeEach,
+    createRootComponent,
+    start,
+} = require('mail/static/src/utils/test_utils.js');
+
+const Bus = require('web.Bus');
+
+QUnit.module('snailmail', {}, function () {
+QUnit.module('components', {}, function () {
+QUnit.module('message', {}, function () {
+QUnit.module('message_tests.js', {
+    beforeEach() {
+        beforeEach(this);
+
+        this.createMessageComponent = async (message, otherProps) => {
+            const props = Object.assign({ messageLocalId: message.localId }, otherProps);
+            await createRootComponent(this, components.Message, {
+                props,
+                target: this.widget.el,
+            });
+        };
+
+        this.start = async params => {
+            const { env, widget } = await start(Object.assign({}, params, {
+                data: this.data,
+            }));
+            this.env = env;
+            this.widget = widget;
+        };
+    },
+    afterEach() {
+        afterEach(this);
+    },
+});
+
+QUnit.test('Sent', async function (assert) {
+    assert.expect(8);
+
+    await this.start();
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            id: 11,
+            notification_status: 'sent',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover',
+        "notification popover should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover_icon',
+        "popover should have one icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_SnailmailNotificationPopover_icon'),
+        'fa-check',
+        "popover should have the sent icon"
+    );
+    assert.strictEqual(
+        document.querySelector('.o_SnailmailNotificationPopover').textContent.trim(),
+        "Sent",
+        "popover should have the sent text"
+    );
+});
+
+QUnit.test('Canceled', async function (assert) {
+    assert.expect(8);
+
+    await this.start();
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            id: 11,
+            notification_status: 'canceled',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover',
+        "notification popover should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover_icon',
+        "popover should have one icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_SnailmailNotificationPopover_icon'),
+        'fa-trash-o',
+        "popover should have the canceled icon"
+    );
+    assert.strictEqual(
+        document.querySelector('.o_SnailmailNotificationPopover').textContent.trim(),
+        "Canceled",
+        "popover should have the canceled text"
+    );
+});
+
+QUnit.test('Pending', async function (assert) {
+    assert.expect(8);
+
+    await this.start();
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            id: 11,
+            notification_status: 'ready',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover',
+        "notification popover should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailNotificationPopover_icon',
+        "popover should have one icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_SnailmailNotificationPopover_icon'),
+        'fa-clock-o',
+        "popover should have the pending icon"
+    );
+    assert.strictEqual(
+        document.querySelector('.o_SnailmailNotificationPopover').textContent.trim(),
+        "Awaiting Dispatch",
+        "popover should have the pending text"
+    );
+});
+
+QUnit.test('No Price Available', async function (assert) {
+    assert.expect(10);
+
+    await this.start({
+        async mockRPC(route, args) {
+            if (args.method === 'cancel_letter' && args.model === 'mail.message' && args.args[0][0] === 10) {
+                assert.step(args.method);
+            }
+            return this._super(...arguments);
+        },
+    });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            failure_type: 'sn_price',
+            id: 11,
+            notification_status: 'exception',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "error dialog should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_contentPrice',
+        "error dialog should have the 'no price' content"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_cancelLetterButton',
+        "dialog should have a 'Cancel letter' button"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_SnailmailErrorDialog_cancelLetterButton').click();
+    });
+    assert.containsNone(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "dialog should be closed after click on 'Cancel letter'"
+    );
+    assert.verifySteps(
+        ['cancel_letter'],
+        "should have made a RPC call to 'cancel_letter'"
+    );
+});
+
+QUnit.test('Credit Error', async function (assert) {
+    assert.expect(11);
+
+    await this.start({
+        async mockRPC(route, args) {
+            if (args.method === 'send_letter' && args.model === 'mail.message' && args.args[0][0] === 10) {
+                assert.step(args.method);
+            }
+            return this._super(...arguments);
+        },
+    });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            failure_type: 'sn_credit',
+            id: 11,
+            notification_status: 'exception',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "error dialog should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_contentCredit',
+        "error dialog should have the 'credit' content"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_resendLetterButton',
+        "dialog should have a 'Re-send letter' button"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_cancelLetterButton',
+        "dialog should have a 'Cancel letter' button"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_SnailmailErrorDialog_resendLetterButton').click();
+    });
+    assert.containsNone(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "dialog should be closed after click on 'Re-send letter'"
+    );
+    assert.verifySteps(
+        ['send_letter'],
+        "should have made a RPC call to 'send_letter'"
+    );
+});
+
+QUnit.test('Trial Error', async function (assert) {
+    assert.expect(11);
+
+    await this.start({
+        async mockRPC(route, args) {
+            if (args.method === 'send_letter' && args.model === 'mail.message' && args.args[0][0] === 10) {
+                assert.step(args.method);
+            }
+            return this._super(...arguments);
+        },
+    });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            failure_type: 'sn_trial',
+            id: 11,
+            notification_status: 'exception',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "error dialog should be open"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_contentTrial',
+        "error dialog should have the 'trial' content"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_resendLetterButton',
+        "dialog should have a 'Re-send letter' button"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_SnailmailErrorDialog_cancelLetterButton',
+        "dialog should have a 'Cancel letter' button"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_SnailmailErrorDialog_resendLetterButton').click();
+    });
+    assert.containsNone(
+        document.body,
+        '.o_SnailmailErrorDialog',
+        "dialog should be closed after click on 'Re-send letter'"
+    );
+    assert.verifySteps(
+        ['send_letter'],
+        "should have made a RPC call to 'send_letter'"
+    );
+});
+
+QUnit.test('Format Error', async function (assert) {
+    assert.expect(8);
+
+    const bus = new Bus();
+    bus.on('do-action', null, payload => {
+        assert.step('do_action');
+        assert.strictEqual(
+            payload.action,
+            'snailmail.snailmail_letter_format_error_action',
+            "action should be the one for format error"
+        );
+        assert.strictEqual(
+            payload.options.additional_context.message_id,
+            10,
+            "action should have correct message id"
+        );
+    });
+
+    await this.start({ env: { bus } });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['create', {
+            id: 11,
+            model: 'mail.channel',
+        }]],
+    });
+    const message = this.env.models['mail.message'].create({
+        id: 10,
+        message_type: 'snailmail',
+        notifications: [['insert', {
+            failure_type: 'sn_format',
+            id: 11,
+            notification_status: 'exception',
+            notification_type: 'snail',
+        }]],
+        originThread: [['link', threadViewer.thread]],
+    });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.verifySteps(
+        ['do_action'],
+        "should do an action to display the format error dialog"
+    );
+});
+
+QUnit.test('Missing Required Fields', async function (assert) {
+    assert.expect(8);
+
+    this.data['mail.message'].records.push({
+        id: 10, // random unique id, useful to link letter and notification
+        message_type: 'snailmail',
+        res_id: 20, // non 0 id, necessary to fetch failure at init
+        model: 'res.partner', // not mail.compose.message, necessary to fetch failure at init
+    });
+    this.data['mail.notification'].records.push({
+        failure_type: 'sn_fields',
+        mail_message_id: 10,
+        notification_status: 'exception',
+        notification_type: 'snail',
+    });
+    this.data['snailmail.letter'].records.push({
+        id: 22, // random unique id, will be asserted in the test
+        message_id: 10, // id of related message
+    });
+    const bus = new Bus();
+    bus.on('do-action', null, payload => {
+        assert.step('do_action');
+        assert.strictEqual(
+            payload.action,
+            'snailmail.snailmail_letter_missing_required_fields_action',
+            "action should be the one for missing fields"
+        );
+        assert.strictEqual(
+            payload.options.additional_context.default_letter_id,
+            22,
+            "action should have correct letter id"
+        );
+    });
+
+    await this.start({
+        env: { bus },
+    });
+    const threadViewer = this.env.models['mail.thread_viewer'].create({
+        hasThreadView: true,
+        thread: [['insert', { id: 20, model: 'res.partner' }]],
+    });
+    const message = this.env.models['mail.message'].findFromIdentifyingData({ id: 10 });
+    await this.createMessageComponent(message, {
+        threadViewLocalId: threadViewer.threadView.localId,
+    });
+
+    assert.containsOnce(
+        document.body,
+        '.o_Message',
+        "should display a message component"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIconClickable',
+        "should display the notification icon container"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_Message_notificationIcon',
+        "should display the notification icon"
+    );
+    assert.hasClass(
+        document.querySelector('.o_Message_notificationIcon'),
+        'fa-paper-plane',
+        "icon should represent snailmail"
+    );
+
+    await afterNextRender(() => {
+        document.querySelector('.o_Message_notificationIconClickable').click();
+    });
+    assert.verifySteps(
+        ['do_action'],
+        "an action should be done to display the missing fields dialog"
+    );
+});
+
+});
+});
+});
+
+});
diff --git a/addons/snailmail/static/src/components/notification_group/notification_group.js b/addons/snailmail/static/src/components/notification_group/notification_group.js
new file mode 100644
index 00000000..00cdebe1
--- /dev/null
+++ b/addons/snailmail/static/src/components/notification_group/notification_group.js
@@ -0,0 +1,27 @@
+odoo.define('snailmail/static/src/components/notification_group/notification_group.js', function (require) {
+'use strict';
+
+const components = {
+    NotificationGroup: require('mail/static/src/components/notification_group/notification_group.js'),
+};
+
+const { patch } = require('web.utils');
+
+patch(components.NotificationGroup, 'snailmail/static/src/components/notification_group/notification_group.js', {
+
+    //--------------------------------------------------------------------------
+    // Public
+    //--------------------------------------------------------------------------
+
+    /**
+     * @override
+     */
+    image() {
+        if (this.group.notification_type === 'snail') {
+            return '/snailmail/static/img/snailmail_failure.png';
+        }
+        return this._super(...arguments);
+    },
+});
+
+});
diff --git a/addons/snailmail/static/src/components/notification_group/notification_group.xml b/addons/snailmail/static/src/components/notification_group/notification_group.xml
new file mode 100644
index 00000000..7f04e716
--- /dev/null
+++ b/addons/snailmail/static/src/components/notification_group/notification_group.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+
+    <t t-inherit="mail.NotificationGroup" t-inherit-mode="extension">
+        <xpath expr="//*[hasclass('o_NotificationGroup_inlineText')]" position="inside">
+            <t t-if="group.notification_type === 'snail'">
+                An error occurred when sending a letter with Snailmail.
+            </t>
+        </xpath>
+    </t>
+
+</templates>
diff --git a/addons/snailmail/static/src/components/notification_list/notification_list_notification_group_tests.js b/addons/snailmail/static/src/components/notification_list/notification_list_notification_group_tests.js
new file mode 100644
index 00000000..d80b4b26
--- /dev/null
+++ b/addons/snailmail/static/src/components/notification_list/notification_list_notification_group_tests.js
@@ -0,0 +1,304 @@
+odoo.define('snailmail/static/src/components/notification_list/notification_list_notification_group_tests.js', function (require) {
+'use strict';
+
+const components = {
+    NotificationList: require('mail/static/src/components/notification_list/notification_list.js'),
+};
+
+const {
+    afterEach,
+    beforeEach,
+    createRootComponent,
+    start,
+} = require('mail/static/src/utils/test_utils.js');
+
+const Bus = require('web.Bus');
+
+QUnit.module('snailmail', {}, function () {
+QUnit.module('components', {}, function () {
+QUnit.module('notification_list', {}, function () {
+QUnit.module('notification_list_notification_group_tests.js', {
+    beforeEach() {
+        beforeEach(this);
+
+        /**
+         * @param {Object} param0
+         * @param {string} [param0.filter='all']
+         */
+        this.createNotificationListComponent = async ({ filter = 'all' } = {}) => {
+            await createRootComponent(this, components.NotificationList, {
+                props: { filter },
+                target: this.widget.el,
+            });
+        };
+
+        this.start = async params => {
+            const { env, widget } = await start(Object.assign({}, params, {
+                data: this.data,
+            }));
+            this.env = env;
+            this.widget = widget;
+        };
+    },
+    afterEach() {
+        afterEach(this);
+    },
+});
+
+QUnit.test('mark as read', async function (assert) {
+    assert.expect(6);
+
+    // message that is expected to have a failure
+    this.data['mail.message'].records.push({
+        id: 11, // random unique id, will be used to link failure to message
+        message_type: 'snailmail', // message must be snailmail (goal of the test)
+        model: 'mail.channel', // expected value to link message to channel
+        res_id: 31, // id of a random channel
+    });
+    // failure that is expected to be used in the test
+    this.data['mail.notification'].records.push({
+        mail_message_id: 11, // id of the related message
+        notification_status: 'exception', // necessary value to have a failure
+        notification_type: 'snail', // expected failure type for snailmail message
+    });
+    const bus = new Bus();
+    bus.on('do-action', null, payload => {
+        assert.step('do_action');
+        assert.strictEqual(
+            payload.action,
+            'snailmail.snailmail_letter_cancel_action',
+            "action should be the one to cancel letter"
+        );
+        assert.strictEqual(
+            payload.options.additional_context.default_model,
+            'mail.channel',
+            "action should have the group model as default_model"
+        );
+        assert.strictEqual(
+            payload.options.additional_context.unread_counter,
+            1,
+            "action should have the group notification length as unread_counter"
+        );
+    });
+    await this.start({ env: { bus } });
+    await this.createNotificationListComponent();
+
+    assert.containsOnce(
+        document.body,
+        '.o_NotificationGroup_markAsRead',
+        "should have 1 mark as read button"
+    );
+
+    document.querySelector('.o_NotificationGroup_markAsRead').click();
+    assert.verifySteps(
+        ['do_action'],
+        "should do an action to display the cancel letter dialog"
+    );
+});
+
+QUnit.test('notifications grouped by notification_type', async function (assert) {
+    assert.expect(11);
+
+    this.data['mail.message'].records.push(
+        // first message that is expected to have a failure
+        {
+            id: 11, // random unique id, will be used to link failure to message
+            message_type: 'email', // different type from second message
+            model: 'res.partner', // same model as second message (and not `mail.channel`)
+            res_id: 31, // same res_id as second message
+            res_model_name: "Partner", // random related model name
+        },
+        // second message that is expected to have a failure
+        {
+            id: 12, // random unique id, will be used to link failure to message
+            message_type: 'snailmail', // different type from first message
+            model: 'res.partner', // same model as first message (and not `mail.channel`)
+            res_id: 31, // same res_id as first message
+            res_model_name: "Partner", // same related model name for consistency
+        }
+    );
+    this.data['mail.notification'].records.push(
+        // first failure that is expected to be used in the test
+        {
+            mail_message_id: 11, // id of the related first message
+            notification_status: 'exception', // necessary value to have a failure
+            notification_type: 'email', // different type from second failure
+        },
+        // second failure that is expected to be used in the test
+        {
+            mail_message_id: 12, // id of the related second message
+            notification_status: 'exception', // necessary value to have a failure
+            notification_type: 'snail', // different type from first failure
+        }
+    );
+    await this.start();
+    await this.createNotificationListComponent();
+
+    assert.containsN(
+        document.body,
+        '.o_NotificationGroup',
+        2,
+        "should have 2 notifications group"
+    );
+    const groups = document.querySelectorAll('.o_NotificationGroup');
+    assert.containsOnce(
+        groups[0],
+        '.o_NotificationGroup_name',
+        "should have 1 group name in first group"
+    );
+    assert.strictEqual(
+        groups[0].querySelector('.o_NotificationGroup_name').textContent,
+        "Partner",
+        "should have model name as group name"
+    );
+    assert.containsOnce(
+        groups[0],
+        '.o_NotificationGroup_counter',
+        "should have 1 group counter in first group"
+    );
+    assert.strictEqual(
+        groups[0].querySelector('.o_NotificationGroup_counter').textContent.trim(),
+        "(1)",
+        "should have 1 notification in first group"
+    );
+    assert.strictEqual(
+        groups[0].querySelector('.o_NotificationGroup_inlineText').textContent.trim(),
+        "An error occurred when sending an email.",
+        "should have the group text corresponding to email"
+    );
+    assert.containsOnce(
+        groups[1],
+        '.o_NotificationGroup_name',
+        "should have 1 group name in second group"
+    );
+    assert.strictEqual(
+        groups[1].querySelector('.o_NotificationGroup_name').textContent,
+        "Partner",
+        "should have second model name as group name"
+    );
+    assert.containsOnce(
+        groups[1],
+        '.o_NotificationGroup_counter',
+        "should have 1 group counter in second group"
+    );
+    assert.strictEqual(
+        groups[1].querySelector('.o_NotificationGroup_counter').textContent.trim(),
+        "(1)",
+        "should have 1 notification in second group"
+    );
+    assert.strictEqual(
+        groups[1].querySelector('.o_NotificationGroup_inlineText').textContent.trim(),
+        "An error occurred when sending a letter with Snailmail.",
+        "should have the group text corresponding to snailmail"
+    );
+});
+
+QUnit.test('grouped notifications by document model', async function (assert) {
+    // If all failures linked to a document model refers to different documents,
+    // a single notification should group all failures that are linked to this
+    // document model.
+    assert.expect(12);
+
+    this.data['mail.message'].records.push(
+        // first message that is expected to have a failure
+        {
+            id: 11, // random unique id, will be used to link failure to message
+            message_type: 'snailmail', // message must be snailmail (goal of the test)
+            model: 'res.partner', // same model as second message (and not `mail.channel`)
+            res_id: 31, // different res_id from second message
+            res_model_name: "Partner", // random related model name
+        },
+        // second message that is expected to have a failure
+        {
+            id: 12, // random unique id, will be used to link failure to message
+            message_type: 'snailmail', // message must be snailmail (goal of the test)
+            model: 'res.partner', // same model as first message (and not `mail.channel`)
+            res_id: 32, // different res_id from first message
+            res_model_name: "Partner", // same related model name for consistency
+        }
+    );
+    this.data['mail.notification'].records.push(
+        // first failure that is expected to be used in the test
+        {
+            mail_message_id: 11, // id of the related first message
+            notification_status: 'exception', // necessary value to have a failure
+            notification_type: 'snail', // expected failure type for snailmail message
+        },
+        // second failure that is expected to be used in the test
+        {
+            mail_message_id: 12, // id of the related second message
+            notification_status: 'exception', // necessary value to have a failure
+            notification_type: 'snail', // expected failure type for snailmail message
+        }
+    );
+    const bus = new Bus();
+    bus.on('do-action', null, payload => {
+        assert.step('do_action');
+        assert.strictEqual(
+            payload.action.name,
+            "Snailmail Failures",
+            "action should have 'Snailmail Failures' as name",
+        );
+        assert.strictEqual(
+            payload.action.type,
+            'ir.actions.act_window',
+            "action should have the type act_window"
+        );
+        assert.strictEqual(
+            payload.action.view_mode,
+            'kanban,list,form',
+            "action should have 'kanban,list,form' as view_mode"
+        );
+        assert.strictEqual(
+            JSON.stringify(payload.action.views),
+            JSON.stringify([[false, 'kanban'], [false, 'list'], [false, 'form']]),
+            "action should have correct views"
+        );
+        assert.strictEqual(
+            payload.action.target,
+            'current',
+            "action should have 'current' as target"
+        );
+        assert.strictEqual(
+            payload.action.res_model,
+            'res.partner',
+            "action should have the group model as res_model"
+        );
+        assert.strictEqual(
+            JSON.stringify(payload.action.domain),
+            JSON.stringify([['message_ids.snailmail_error', '=', true]]),
+            "action should have 'message_has_sms_error' as domain"
+        );
+    });
+
+    await this.start({ env: { bus } });
+    await this.createNotificationListComponent();
+
+    assert.containsOnce(
+        document.body,
+        '.o_NotificationGroup',
+        "should have 1 notification group"
+    );
+    assert.containsOnce(
+        document.body,
+        '.o_NotificationGroup_counter',
+        "should have 1 group counter"
+    );
+    assert.strictEqual(
+        document.querySelector('.o_NotificationGroup_counter').textContent.trim(),
+        "(2)",
+        "should have 2 notifications in the group"
+    );
+
+    document.querySelector('.o_NotificationGroup').click();
+    assert.verifySteps(
+        ['do_action'],
+        "should do an action to display the related records"
+    );
+});
+
+});
+});
+});
+
+});
diff --git a/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.js b/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.js
new file mode 100644
index 00000000..a7daf7c1
--- /dev/null
+++ b/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.js
@@ -0,0 +1,113 @@
+odoo.define('snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.js', function (require) {
+'use strict';
+
+const useStore = require('mail/static/src/component_hooks/use_store/use_store.js');
+
+const Dialog = require('web.OwlDialog');
+
+const { Component } = owl;
+const { useRef } = owl.hooks;
+
+class SnailmailErrorDialog extends Component {
+
+    /**
+     * @override
+     */
+    constructor(...args) {
+        super(...args);
+        useStore(props => {
+            const message = this.env.models['mail.message'].get(props.messageLocalId);
+            const notifications = message ? message.notifications : [];
+            return {
+                message: message ? message.__state : undefined,
+                notifications: notifications.map(notification =>
+                    notification ? notification.__state : undefined
+                ),
+                snailmail_credits_url: this.env.messaging.snailmail_credits_url,
+                snailmail_credits_url_trial: this.env.messaging.snailmail_credits_url_trial,
+            };
+        }, {
+            compareDepth: {
+                notifications: 1,
+            },
+        });
+        // to manually trigger the dialog close event
+        this._dialogRef = useRef('dialog');
+    }
+
+    //--------------------------------------------------------------------------
+    // Public
+    //--------------------------------------------------------------------------
+
+    /**
+     * @returns {boolean}
+     */
+    get hasCreditsError() {
+        return (
+            this.notification.failure_type === 'sn_credit' ||
+            this.notification.failure_type === 'sn_trial'
+        );
+    }
+
+    /**
+     * @returns {mail.message}
+     */
+    get message() {
+        return this.env.models['mail.message'].get(this.props.messageLocalId);
+    }
+
+    /**
+     * @returns {mail.notification}
+     */
+    get notification() {
+        // Messages from snailmail are considered to have at most one notification.
+        return this.message.notifications[0];
+    }
+
+    /**
+     * @returns {string}
+     */
+    get title() {
+        return this.env._t("Failed letter");
+    }
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * @private
+     */
+    _onClickCancelLetter() {
+        this._dialogRef.comp._close();
+        this.message.cancelLetter();
+    }
+
+    /**
+     * @private
+     */
+    _onClickClose() {
+        this._dialogRef.comp._close();
+    }
+
+    /**
+     * @private
+     */
+    _onClickResendLetter() {
+        this._dialogRef.comp._close();
+        this.message.resendLetter();
+    }
+
+}
+
+Object.assign(SnailmailErrorDialog, {
+    components: { Dialog },
+    props: {
+        messageLocalId: String,
+    },
+    template: 'snailmail.SnailmailErrorDialog',
+});
+
+return SnailmailErrorDialog;
+
+});
diff --git a/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.xml b/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.xml
new file mode 100644
index 00000000..bf4f026e
--- /dev/null
+++ b/addons/snailmail/static/src/components/snailmail_error_dialog/snailmail_error_dialog.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+
+    <t t-name="snailmail.SnailmailErrorDialog" owl="1">
+        <Dialog contentClass="'o_SnailmailErrorDialog'" title="title" size="'medium'" t-ref="dialog">
+            <t t-if="message and notification">
+                <t t-if="notification.failure_type === 'sn_credit'">
+                    <p class="o_SnailmailErrorDialog_contentCredit">
+                        The letter could not be sent due to insufficient credits on your IAP account.
+                    </p>
+                    <t t-if="env.messaging.snailmail_credits_url">
+                        <div class="text-right">
+                            <a class="btn btn-link" t-att-href="env.messaging.snailmail_credits_url" target="_blank">
+                                <i class="fa fa-arrow-right"/> Buy credits
+                            </a>
+                        </div>
+                    </t>
+                </t>
+                <t t-elif="notification.failure_type === 'sn_trial'">
+                    <p class="o_SnailmailErrorDialog_contentTrial">
+                        You need credits on your IAP account to send a letter.
+                    </p>
+                    <t t-if="env.messaging.snailmail_credits_url_trial">
+                        <div class="text-right">
+                            <a class="btn btn-link" t-att-href="env.messaging.snailmail_credits_url_trial">
+                                <i class="fa fa-arrow-right"/> Buy credits
+                            </a>
+                        </div>
+                    </t>
+                </t>
+                <t t-elif="notification.failure_type === 'sn_price'">
+                    <p class="o_SnailmailErrorDialog_contentPrice">
+                        The country to which you want to send the letter is not supported by our service.
+                    </p>
+                </t>
+                <t t-elif="notification.failure_type === 'sn_error'">
+                    <p class="o_SnailmailErrorDialog_contentError">
+                        An unknown error occurred. Please contact our <a href="https://www.odoo.com/help" target="new">support</a> for further assistance.
+                    </p>
+                </t>
+
+                <t t-set-slot="buttons">
+                    <t t-if="hasCreditsError">
+                        <button class="o_SnailmailErrorDialog_resendLetterButton btn btn-primary" t-on-click="_onClickResendLetter">Re-send letter</button>
+                    </t>
+                    <button class="o_SnailmailErrorDialog_cancelLetterButton btn"
+                        t-att-class="{
+                            'btn-primary': !hasCreditsError,
+                            'btn-secondary': hasCreditsError,
+                        }"
+                        t-on-click="_onClickCancelLetter"
+                    >
+                        Cancel letter
+                    </button>
+                    <button class="o_SnailmailErrorDialog_closeButton btn btn-secondary" t-on-click="_onClickClose">Close</button>
+                </t>
+            </t>
+        </Dialog>
+    </t>
+
+</templates>
diff --git a/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.js b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.js
new file mode 100644
index 00000000..0845ce07
--- /dev/null
+++ b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.js
@@ -0,0 +1,86 @@
+odoo.define('snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.js', function (require) {
+'use strict';
+
+const { Component } = owl;
+const useStore = require('mail/static/src/component_hooks/use_store/use_store.js');
+
+class SnailmailNotificationPopover extends Component {
+
+    /**
+     * @override
+     */
+    constructor(...args) {
+        super(...args);
+        useStore(props => {
+            const message = this.env.models['mail.message'].get(props.messageLocalId);
+            const notifications = message ? message.notifications : [];
+            return {
+                message: message ? message.__state : undefined,
+                notifications: notifications.map(notification => notification ? notification.__state : undefined),
+            };
+        }, {
+            compareDepth: {
+                notifications: 1,
+            },
+        });
+    }
+
+    /**
+     * @returns {string}
+     */
+    get iconClass() {
+        switch (this.notification.notification_status) {
+            case 'sent':
+                return 'fa fa-check';
+            case 'ready':
+                return 'fa fa-clock-o';
+            case 'canceled':
+                return 'fa fa-trash-o';
+            default:
+                return 'fa fa-exclamation text-danger';
+        }
+    }
+
+    /**
+     * @returns {string}
+     */
+    get iconTitle() {
+        switch (this.notification.notification_status) {
+            case 'sent':
+                return this.env._t("Sent");
+            case 'ready':
+                return this.env._t("Awaiting Dispatch");
+            case 'canceled':
+                return this.env._t("Canceled");
+            default:
+                return this.env._t("Error");
+        }
+    }
+
+    /**
+     * @returns {mail.message}
+     */
+    get message() {
+        return this.env.models['mail.message'].get(this.props.messageLocalId);
+    }
+
+    /**
+     * @returns {mail.notification}
+     */
+    get notification() {
+        // Messages from snailmail are considered to have at most one notification.
+        return this.message.notifications[0];
+    }
+
+}
+
+Object.assign(SnailmailNotificationPopover, {
+    props: {
+        messageLocalId: String,
+    },
+    template: 'snailmail.SnailmailNotificationPopover',
+});
+
+return SnailmailNotificationPopover;
+
+});
diff --git a/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.scss b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.scss
new file mode 100644
index 00000000..970bc79d
--- /dev/null
+++ b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.scss
@@ -0,0 +1,7 @@
+// -----------------------------------------------------------------------------
+// Layout
+// -----------------------------------------------------------------------------
+
+.o_SnailmailNotificationPopover_icon {
+    margin-inline-end: map-get($spacers, 2);
+}
diff --git a/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.xml b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.xml
new file mode 100644
index 00000000..873b08f4
--- /dev/null
+++ b/addons/snailmail/static/src/components/snailmail_notification_popover/snailmail_notification_popover.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates xml:space="preserve">
+
+    <t t-name="snailmail.SnailmailNotificationPopover" owl="1">
+        <div class="o_SnailmailNotificationPopover">
+            <t t-if="message and notification">
+                <i class="o_SnailmailNotificationPopover_icon" t-att-class="iconClass" role="img"/>
+                <span t-esc="iconTitle"/>
+            </t>
+        </div>
+    </t>
+
+</templates>
diff --git a/addons/snailmail/static/src/js/snailmail_external_layout.js b/addons/snailmail/static/src/js/snailmail_external_layout.js
new file mode 100644
index 00000000..be691d26
--- /dev/null
+++ b/addons/snailmail/static/src/js/snailmail_external_layout.js
@@ -0,0 +1,7 @@
+// Change address font-size if needed
+document.addEventListener('DOMContentLoaded', function (evt) {
+    var recipientAddress = document.getElementsByClassName('address row')[0].getElementsByTagName('address')[0];
+    var height = parseFloat(window.getComputedStyle(recipientAddress, null).getPropertyValue('height'));
+    var fontSize = parseFloat(window.getComputedStyle(recipientAddress, null).getPropertyValue('font-size'));
+    recipientAddress.style.fontSize = (85/height) * fontSize + 'px';
+});
diff --git a/addons/snailmail/static/src/models/message/message.js b/addons/snailmail/static/src/models/message/message.js
new file mode 100644
index 00000000..f685e48a
--- /dev/null
+++ b/addons/snailmail/static/src/models/message/message.js
@@ -0,0 +1,69 @@
+odoo.define('snailmail/static/src/models/message.message.js', function (require) {
+'use strict';
+
+const { registerInstancePatchModel } = require('mail/static/src/model/model_core.js');
+
+registerInstancePatchModel('mail.message', 'snailmail/static/src/models/message.message.js', {
+
+    //----------------------------------------------------------------------
+    // Public
+    //----------------------------------------------------------------------
+
+    /**
+     * Cancels the 'snailmail.letter' corresponding to this message.
+     *
+     * @returns {Deferred}
+     */
+    async cancelLetter() {
+        // the result will come from longpolling: message_notification_update
+        await this.async(() => this.env.services.rpc({
+            model: 'mail.message',
+            method: 'cancel_letter',
+            args: [[this.id]],
+        }));
+    },
+    /**
+     * Opens the action about 'snailmail.letter' format error.
+     */
+    openFormatLetterAction() {
+        this.env.bus.trigger('do-action', {
+            action: 'snailmail.snailmail_letter_format_error_action',
+            options: {
+                additional_context: {
+                    message_id: this.id,
+                },
+            },
+        });
+    },
+    /**
+     * Opens the action about 'snailmail.letter' missing fields.
+     */
+    async openMissingFieldsLetterAction() {
+        const letterIds = await this.async(() => this.env.services.rpc({
+            model: 'snailmail.letter',
+            method: 'search',
+            args: [[['message_id', '=', this.id]]],
+        }));
+        this.env.bus.trigger('do-action', {
+            action: 'snailmail.snailmail_letter_missing_required_fields_action',
+            options: {
+                additional_context: {
+                    default_letter_id: letterIds[0],
+                },
+            },
+        });
+    },
+    /**
+     * Retries to send the 'snailmail.letter' corresponding to this message.
+     */
+    async resendLetter() {
+        // the result will come from longpolling: message_notification_update
+        await this.async(() => this.env.services.rpc({
+            model: 'mail.message',
+            method: 'send_letter',
+            args: [[this.id]],
+        }));
+    },
+});
+
+});
diff --git a/addons/snailmail/static/src/models/messaging/messaging.js b/addons/snailmail/static/src/models/messaging/messaging.js
new file mode 100644
index 00000000..f00d0544
--- /dev/null
+++ b/addons/snailmail/static/src/models/messaging/messaging.js
@@ -0,0 +1,38 @@
+odoo.define('snailmail/static/src/models/messaging/messaging.js', function (require) {
+'use strict';
+
+const {
+    registerInstancePatchModel,
+    registerFieldPatchModel,
+} = require('mail/static/src/model/model_core.js');
+const { attr } = require('mail/static/src/model/model_field.js');
+
+registerInstancePatchModel('mail.messaging', 'snailmail/static/src/models/messaging/messaging.js', {
+    async fetchSnailmailCreditsUrl() {
+        const snailmail_credits_url = await this.async(() => this.env.services.rpc({
+            model: 'iap.account',
+            method: 'get_credits_url',
+            args: ['snailmail'],
+        }));
+        this.update({
+            snailmail_credits_url,
+        });
+    },
+    async fetchSnailmailCreditsUrlTrial() {
+        const snailmail_credits_url_trial = await this.async(() => this.env.services.rpc({
+            model: 'iap.account',
+            method: 'get_credits_url',
+            args: ['snailmail', '', 0, true],
+        }));
+        this.update({
+            snailmail_credits_url_trial,
+        });
+    },
+});
+
+registerFieldPatchModel('mail.messaging', 'snailmail/static/src/models/messaging/messaging.js', {
+    snailmail_credits_url: attr(),
+    snailmail_credits_url_trial: attr(),
+});
+
+});
diff --git a/addons/snailmail/static/src/models/notification_group/notification_group.js b/addons/snailmail/static/src/models/notification_group/notification_group.js
new file mode 100644
index 00000000..3fff33cb
--- /dev/null
+++ b/addons/snailmail/static/src/models/notification_group/notification_group.js
@@ -0,0 +1,62 @@
+odoo.define('snailmail/static/src/models/notification_group/notification_group.js', function (require) {
+'use strict';
+
+const {
+    registerInstancePatchModel,
+} = require('mail/static/src/model/model_core.js');
+
+registerInstancePatchModel('mail.notification_group', 'snailmail/static/src/models/notification_group/notification_group.js', {
+
+    //--------------------------------------------------------------------------
+    // Public
+    //--------------------------------------------------------------------------
+
+    /**
+     * @override
+     */
+    openCancelAction() {
+        if (this.notification_type !== 'snail') {
+            return this._super(...arguments);
+        }
+        this.env.bus.trigger('do-action', {
+            action: 'snailmail.snailmail_letter_cancel_action',
+            options: {
+                additional_context: {
+                    default_model: this.res_model,
+                    unread_counter: this.notifications.length,
+                },
+            },
+        });
+    },
+
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+
+    /**
+     * @override
+     */
+    _openDocuments() {
+        if (this.notification_type !== 'snail') {
+            return this._super(...arguments);
+        }
+        this.env.bus.trigger('do-action', {
+            action: {
+                name: this.env._t("Snailmail Failures"),
+                type: 'ir.actions.act_window',
+                view_mode: 'kanban,list,form',
+                views: [[false, 'kanban'], [false, 'list'], [false, 'form']],
+                target: 'current',
+                res_model: this.res_model,
+                domain: [['message_ids.snailmail_error', '=', true]],
+            },
+        });
+        if (this.env.messaging.device.isMobile) {
+            // messaging menu has a higher z-index than views so it must
+            // be closed to ensure the visibility of the view
+            this.env.messaging.messagingMenu.close();
+        }
+    },
+});
+
+});
diff --git a/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss b/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss
new file mode 100644
index 00000000..ae60f3d4
--- /dev/null
+++ b/addons/snailmail/static/src/scss/snailmail_external_layout_asset.scss
@@ -0,0 +1,50 @@
+/* Generic report layouts*/
+.header {
+    max-height: 40mm;
+    overflow: hidden;
+}
+.container {
+    margin-top: 5mm;
+}
+.o_standard_footer, .o_clean_footer, .o_boxed_footer, .o_background_footer {
+    max-height: 90px !important;
+    overflow: hidden;
+    width: 95%;
+    div > div:first-child {
+        padding-left: 10mm;
+    }
+}
+.o_background_footer {
+    padding-left: 8mm;
+}
+.article>.page {
+    > h1, > h2, > h3 {
+        width: 50%;
+    }
+}
+.article > .address.row > div[name="address"] {
+    height: 65mm;
+    background-color: #ffffff;
+    padding-top: 23mm;
+    padding-left: 5mm;
+    padding-bottom: 5mm;
+    left: -20px !important;
+    address {
+        height: 28mm;
+    }
+}
+
+/*l10n_de_din layout*/
+.din {
+    .invoice_address {
+        top: 27.7mm !important;
+    }
+    &.article {
+        .page {
+            top: 18.46mm !important;
+        }
+    }
+    &.o_background_footer {
+        top: -8mm !important;
+    }
+}