Add documentation (#12)

* Add documentation

* Add link to doc to README

---------

Co-authored-by: Maelan LE BORGNE <[email protected]>

README.md

@@ -6,10 +6,11 @@ This bundle allows you to compile TypeScript and use it with Symfony's AssetMapp
 
 - Automatically downloads the correct [SWC](https://github.com/swc-project/swc) binary
 - Adds a ``typescript:build`` command to compile your typescript files
+- Automatically compiles your typescript files when you run ``asset-map:compile`` command
 
 ## Documentation
 
-Read the documentation at: **#- TODO -#**
+Read the documentation at: [doc/index.md](doc/index.rst)
 
 ## Credits
 This bundle was greatly inspired by the [Sass Bundle](https://github.com/SymfonyCasts/sass-bundle) from [SymfonyCasts](https://github.com/SymfonyCasts).

doc/index.rst

@@ -0,0 +1,81 @@
+TypeScript Bundle For Symfony
+=================
+
+This bundle allows you to compile TypeScript and use it with Symfony's AssetMapper Component
+(no Node required!).
+
+- Automatically downloads the correct [SWC](https://github.com/swc-project/swc) binary
+- Adds a ``typescript:build`` command to compile your typescript files
+- Automatically compiles your typescript files when you run ``asset-map:compile`` command
+
+Installation
+------------
+
+Install the bundle:
+
+.. code-block:: terminal
+
+    $ composer require sensiolabs/typescript-bundle
+
+Usage
+-----
+
+Start by setting the ``sensiolabs_typescript.source_dir`` option to the list of location where your typescript files are located.
+
+For instance, if your TypeScript code lives in ``assets/typescript`` directory, with a ``assets/typescript/app.ts`` entrypoint file, you could set the option like this:
+
+.. code-block:: yaml
+    # config/packages/asset_mapper.yaml
+    sensiolabs_typescript:
+        source_dir: ['%kernel.project_dir%/assets/typescript']
+
+Then point your TypeScript files in your templates
+
+.. code-block:: html+twig
+
+    {# templates/base.html.twig #}
+
+    {% block javascripts %}
+        <script type="text/javascript" src="{{ asset('typescript/app.ts') }}"></script>
+    {% endblock %}
+
+
+Then run the command:
+
+.. code-block:: terminal
+
+    # To compile only the typescript files
+    $ php bin/console typescript:build
+
+    # To compile ALL your assets
+    $ php bin/console asset-map:compile
+
+And that's it!
+
+How Does it Work?
+-----------------
+
+The first time you run one of the TypeScript commands, the bundle will download the correct SWC binary for your system into the ``var`` directory.
+
+When you run ``typescript:build``, that binary is used to compile TypeScript files into a ``var/typescript`` directory. Finally, when the contents of ``assets/typescript/app.ts`` is requested, the bundle swaps the contents of that file with the contents of from ``var/typescript/`` directory.
+
+Configuration
+--------------
+
+To see the full config from this bundle, run:
+
+.. code-block:: terminal
+
+    $ php bin/console config:dump sensiolabs_typescript
+
+The main option is ``source_dir`` option, which defaults to ``[%kernel.project_dir%/assets]``. This is an array of directories that will be compiled.
+
+Using a different binary
+--------------------------
+
+This bundle already installed for you the right SWC binary. However, if you already have a SWC binary installed on your machine you can instruct the bundle to use that binary, set the ``binary`` option:
+
+.. code-block:: yaml
+
+    sensiolabs_typescript:
+        binary: 'node_modules/.bin/swc'