Chat integration (#317)

* Enable chat

Starting point for chat integration: enabling the server.

* Proper codeium#Chat() function

This launches the browser the same way the initial authentication does.

* Bugfix no-submit issue

I forgot ide_telemetry_enabled=true which is needed for chat.

* Automate workspace tracking

* Don't search for project root until necessary

* Whitespace fix

* Whitespace fix

* Document how to launch chat

* Whitespace cleanup in README

README.md

@@ -50,13 +50,13 @@ A few of the most popular options are highlighted below.
 
 Codeium provides the following functions to control suggestions:
 
-|Action|Function|Default Binding|
-|---|---|---|
-|Clear current suggestion| `codeium#Clear()` |`<C-]>`|
-|Next suggestion| `codeium#CycleCompletions(1)` |`<M-]>`|
-|Previous suggestion| `codeium#CycleCompletions(-1)` |`<M-[>`|
-|Insert suggestion| `codeium#Accept()` |`<Tab>`|
-|Manually trigger suggestion| `codeium#Complete()` |`<M-Bslash>`|
+| Action                      | Function                       | Default Binding |
+| --------------------------- | ------------------------------ | --------------- |
+| Clear current suggestion    | `codeium#Clear()`              | `<C-]>`         |
+| Next suggestion             | `codeium#CycleCompletions(1)`  | `<M-]>`         |
+| Previous suggestion         | `codeium#CycleCompletions(-1)` | `<M-[>`         |
+| Insert suggestion           | `codeium#Accept()`             | `<Tab>`         |
+| Manually trigger suggestion | `codeium#Complete()`           | `<M-Bslash>`    |
 
 Codeium's default keybindings can be disabled by setting
 
@@ -75,7 +75,6 @@ use the `g:codeium_no_map_tab` option.
 
 If you'd like to bind the actions above to different keys, this might look something like the following in Vim:
 
-
 ```vim
 imap <script><silent><nowait><expr> <C-g> codeium#Accept()
 imap <C-;>   <Cmd>call codeium#CycleCompletions(1)<CR>
@@ -101,7 +100,6 @@ use {
 
 (Make sure that you ran `:Codeium Auth` after installation.)
 
-
 ### ⛔ Disabling Codeium
 
 Codeium can be disabled for particular filetypes by setting the
@@ -141,6 +139,7 @@ let g:codeium_manual = v:true
 Codeium status can be generated by calling the `codeium#GetStatusString()` function. In
 Neovim, you can use `vim.api.nvim_call_function("codeium#GetStatusString", {})` instead.
 It produces a 3 char long string with Codeium status:
+
 - `'3/8'` - third suggestion out of 8
 - `'0'` - Codeium returned no suggestions
 - `'*'` - waiting for Codeium response
@@ -160,6 +159,16 @@ Please check `:help statusline` for further information about building statuslin
 
 vim-airline supports Codeium out-of-the-box since commit [3854429d](https://github.com/vim-airline/vim-airline/commit/3854429d99c8a2fb555a9837b155f33c957a2202).
 
+### Launching Codeium Chat
+
+Calling the `codeium#Chat()` function will enable search and indexing in the current project and launch Codeium Chat in a new browser window.
+
+The project root is determined by looking in Vim's current working directory for some specific files or directories to be present and goes up to parent directories until one is found.  This list of hints is user-configurable and the default value is:
+
+```let g:codeium_workspace_root_hints = ['.bzr','.git','.hg','.svn','_FOSSIL_','package.json']```
+
+Note that launching chat enables telemetry.
+
 ## 💾 Installation Options
 
 ### 💤 Lazy

autoload/codeium.vim

@@ -390,6 +390,77 @@ function! codeium#CycleOrComplete() abort
   endif
 endfunction
 
+function! s:LaunchChat(out, err, status) abort
+  let l:metadata = codeium#server#RequestMetadata()
+  let l:processes = json_decode(join(a:out, ''))
+  let l:chat_port = l:processes['chatClientPort']
+  let l:ws_port = l:processes['chatWebServerPort']
+  " Hard-coded to English locale and allowed telemetry.
+  " Not touching has_enterprise_extension
+  let l:url = 'http://127.0.0.1:' . l:chat_port . '/?' . 'api_key=' . l:metadata.api_key . '&ide_name=' . l:metadata.ide_name . '&ide_version=' . l:metadata.ide_version . '&extension_name=' . l:metadata.extension_name . '&extension_version=' . l:metadata.extension_version . '&web_server_url=ws://127.0.0.1:' . l:ws_port . '&app_name=Vim&locale=en&ide_telemetry_enabled=true&has_index_service=true'
+  let l:browser = codeium#command#BrowserCommand()
+  let opened_browser = v:false
+  if !empty(browser)
+    echomsg 'Navigating to ' . l:url
+    try
+      call system(l:browser . ' ' . '"' . l:url . '"')
+      if v:shell_error is# 0
+        let l:opened_browser = v:true
+      endif
+    catch
+    endtry
+
+    if !l:opened_browser
+      echomsg 'Failed to open browser. Please go to the link above.'
+    endif
+  else
+    echomsg 'No available browser found. Please go to ' . l:url
+  endif
+endfunction
+
+let g:codeium_workspace_root_hints = ['.bzr','.git','.hg','.svn','_FOSSIL_','package.json']
+function! s:GetProjectRoot() abort
+  let l:last_dir = ''
+  let l:dir = getcwd()
+  while l:dir != l:last_dir
+    for l:root_hint in g:codeium_workspace_root_hints
+      let l:hint = l:dir . '/' . l:root_hint
+      if isdirectory(l:hint) || filereadable(l:hint)
+        return l:dir
+      endif
+    endfor
+    let l:last_dir = l:dir
+    let l:dir = fnamemodify(l:dir, ':h')
+  endwhile
+  return getcwd()
+endfunction
+
+" This assumes a single workspace is involved per Vim session, for now.
+let s:codeium_workspace_indexed = v:false
+function! codeium#AddTrackedWorkspace() abort
+  if (!codeium#Enabled() || s:codeium_workspace_indexed)
+    return
+  endif
+  let s:codeium_workspace_indexed = v:true
+  try
+    call codeium#server#Request('AddTrackedWorkspace', {"workspace": s:getProjectRoot()})
+  catch
+    call codeium#log#Exception()
+  endtry
+endfunction
+
+function! codeium#Chat() abort
+  if (!codeium#Enabled())
+    return
+  endif
+  try
+    call codeium#server#Request('GetProcesses', codeium#server#RequestMetadata(), function('s:LaunchChat', []))
+    call codeium#AddTrackedWorkspace()
+  catch
+    call codeium#log#Exception()
+  endtry
+endfunction
+
 function! codeium#GetStatusString(...) abort
   let s:using_codeium_status = 1
   if (!codeium#Enabled())

autoload/codeium/server.vim

@@ -221,7 +221,9 @@ function! s:ActuallyStart() abort
   let args = [
         \ s:bin,
         \ '--api_server_url', get(config, 'api_url', 'https://server.codeium.com'),
-        \ '--manager_dir', manager_dir
+        \ '--manager_dir', manager_dir,
+        \ '--enable_local_search', '--enable_index_service', '--search_max_workspace_file_count', '5000',
+        \ '--enable_chat_web_server', '--enable_chat_client'
         \ ]
   if has_key(config, 'api_url') && !empty(config.api_url)
     let args += ['--enterprise_mode']