Add config flow to IMAP integration

source/_integrations/imap.markdown

@@ -9,72 +9,28 @@ ha_domain: imap
 ha_platforms:
   - sensor
 ha_integration_type: integration
+ha_codeowners:
+  - '@engrbm87'
+ha_config_flow: true
 ---
 
-The `imap` integration is observing your [IMAP server](https://en.wikipedia.org/wiki/Internet_Message_Access_Protocol) and reporting the amount of unread emails.
+The IMAP integration is observing your [IMAP server](https://en.wikipedia.org/wiki/Internet_Message_Access_Protocol) and reporting the number of unread emails. Other search criteria can be used, as shown in the example below.
 
-## Configuration
-
-To enable this sensor, add the following lines to your `configuration.yaml` file:
-
-```yaml
-# Example configuration.yaml entry
-sensor:
-  - platform: imap
-    server: YOUR_IMAP_SERVER
-    username: YOUR_USERNAME
-    password: YOUR_PASSWORD
-```
-
-{% configuration %}
-server:
-  description: The IP address or hostname of the IMAP server.
-  required: true
-  type: string
-port:
-  description: The port where the server is accessible.
-  required: false
-  default: 993
-  type: integer
-name:
-  description: Name of the IMAP sensor.
-  required: false
-  type: string
-username:
-  description: Username for the IMAP server.
-  required: true
-  type: string
-password:
-  description: Password for the IMAP server.
-  required: true
-  type: string
-folder:
-  description: The IMAP folder to watch.
-  required: false
-  default: inbox
-  type: string
-search:
-  description: The IMAP search to perform on the watched folder.
-  required: false
-  default: UnSeen UnDeleted
-  type: string
-charset:
-  description: The character set used for this connection.
-  required: false
-  default: utf-8
-  type: string
-{% endconfiguration %}
+{% include integrations/config_flow.md %}
 
 ### Gmail with App Password
 
-If you’re going to use Gmail, it’s always good practice to create a [App Password](https://support.google.com/mail/answer/185833).
+If you’re going to use Gmail, you need to create an [App Password](https://support.google.com/mail/answer/185833).
 
 1. Go to your [Google Account](https://myaccount.google.com/)
 2. Select **Security**
 3. Under “Signing in to Google” select **App Passwords**
 4. Sign in to your Account, and create a new App Password for Gmail.
-
-You can now use this as your password for Gmail, in your configuration.
+5. Then you can setup the intergation as below:
+    - Server: `imap.gmail.com`
+    - Port: `993`
+    - Username: Your full email address
+    - Password: The new app password
 
 ### Configuring IMAP Searches
 
@@ -84,27 +40,12 @@ By default, this integration will count unread emails. By configuring the search
 * `FROM`, `TO`, `SUBJECT` to find emails in a folder (see [IMAP RFC for all standard options](https://tools.ietf.org/html/rfc3501#section-6.4.4))
 * [Gmail's IMAP extensions](https://developers.google.com/gmail/imap/imap-extensions) allow raw Gmail searches, like `X-GM-RAW "in: inbox older_than:7d"` to show emails older than one week in your inbox. Note that raw Gmail searches will ignore your folder configuration and search all emails in your account!
 
-#### Full configuration sample with search
-
-```yaml
-# Example configuration.yaml entry for gmail
-sensor:
-  - platform: imap
-    server: imap.gmail.com
-    port: 993
-    username: YOUR_USERNAME
-    password: YOUR_PASSWORD
-    search: FROM <sender@email.com>, SUBJECT <subject here>
-    # Or use X-GM-RAW search-term like this, to find unread emails from the last 7 days in your inbox
-    # search: 'X-GM-RAW "in: inbox newer_than:7d is:unread"'
+### Selecting a charset supported by the imap server
 
-# Example configuration.yaml entry for Office 365
-sensor:
-  - platform: imap
-    server: outlook.office365.com
-    port: 993
-    username: email@address.com
-    password: password
-    search: FROM <sender@email.com>, SUBJECT <subject here>
-    charset: US-ASCII
-```
+Below is an example for setting up the integration to connect to your Microsoft 365 account that requires `US_ASCII` as charset:
+  - Server: `outlook.office365.com`
+  - Port: `993`
+  - Username: Your full email address
+  - Password: Your password
+  - Charset: `US-ASCII`
+