From f8dd0f1d0c09c689eaea082de1428c43be6d7e91 Mon Sep 17 00:00:00 2001
From: Vladimir Kolchurin <18503099+kolchurinvv@users.noreply.github.com>
Date: Thu, 23 Apr 2026 20:33:28 +0200
Subject: [PATCH] barebones implementation of avd emulators

---
 lua/flutter-tools.lua            |  1 +
 lua/flutter-tools/devices.lua    | 73 +++++++++++++++++++++++++++++---
 lua/flutter-tools/executable.lua | 12 ++++++
 lua/flutter-tools/menu.lua       |  6 +++
 4 files changed, 85 insertions(+), 7 deletions(-)

diff --git a/lua/flutter-tools.lua b/lua/flutter-tools.lua
index 3f0a5c5d..78dc0134 100644
--- a/lua/flutter-tools.lua
+++ b/lua/flutter-tools.lua
@@ -36,6 +36,7 @@ local function setup_commands()
   -- Lists
   command("FlutterDevices", devices.list_devices)
   command("FlutterEmulators", devices.list_emulators)
+  command("FlutterEmulatorsAvds", devices.list_emulators_avds)
   --- Outline
   command("FlutterOutlineOpen", outline.open)
   command("FlutterOutlineToggle", outline.toggle)
diff --git a/lua/flutter-tools/devices.lua b/lua/flutter-tools/devices.lua
index 8f11d781..1fad06ec 100644
--- a/lua/flutter-tools/devices.lua
+++ b/lua/flutter-tools/devices.lua
@@ -18,10 +18,17 @@ local DEVICE = 2
 
 ---@param result string[]
 ---@param type integer
-local function get_devices(result, type)
+---@param is_avds boolean
+local function get_devices(result, type, is_avds)
+  local parse_avds = is_avds == true
   local devices = {}
   for _, line in pairs(result) do
-    local device = M.parse(line, type)
+    local device
+    if parse_avds then
+      device = M.parse_avds(line, type)
+    else
+      device = M.parse(line, type)
+    end
     if device then
       table.insert(devices, device)
       if type == EMULATOR and device.system and device.system == "android" then
@@ -34,6 +41,24 @@ local function get_devices(result, type)
   return devices
 end
 
+---@param line string
+---@param device_type number
+---@return Device?
+function M.parse_avds(line, device_type)
+  local parts = vim.split(line, "•")
+  local name_index = 1
+  local id_index = 1
+  return {
+    name = vim.trim(parts[name_index]),
+    id = vim.trim(parts[id_index]),
+    platform = "Android",
+    system = "dunno",
+    -- platform = vim.trim(parts[3]),
+    -- system = vim.trim(parts[4]),
+    type = device_type,
+  }
+end
+
 ---@param line string
 ---@param device_type number
 ---@return Device?
@@ -59,11 +84,12 @@ end
 --- return the parsed list and the found devices if any
 ---@param result string[]
 ---@param device_type integer?
+---@param is_avds boolean
 ---@return SelectionEntry[]
-function M.to_selection_entries(result, device_type)
+function M.to_selection_entries(result, device_type, is_avds)
   if not result or #result < 1 then return {} end
   if not device_type then device_type = DEVICE end
-  local devices = get_devices(result, device_type)
+  local devices = get_devices(result, device_type, is_avds)
   if #devices == 0 then vim.tbl_map(function(item) return { text = item } end, result) end
   return vim.tbl_map(function(device)
     local has_platform = device.platform and device.platform ~= ""
@@ -86,6 +112,17 @@ function M.close_emulator()
   if M.emulator_job then M.emulator_job:shutdown() end
 end
 
+---@param emulator table
+function M.launch_emulator_avd(emulator)
+  if not emulator then return end
+  executable.emulator(function(cmd)
+    args = { "@" .. emulator.id, "-gpu", "host", "-accel", "on" }
+    if emulator.cold_boot then table.insert(args, "-no-snapshot-load") end
+    M.emulator_job = Job:new({ command = cmd, args = args })
+    M.emulator_job:after_success(vim.schedule_wrap(handle_launch))
+    M.emulator_job:start()
+  end)
+end
 ---@param emulator table
 function M.launch_emulator(emulator)
   if not emulator then return end
@@ -99,17 +136,39 @@ function M.launch_emulator(emulator)
 end
 
 ---@param result string[]
-local function show_emulators(result)
-  local lines = M.to_selection_entries(result, EMULATOR)
+---@param is_avds boolean
+local function show_emulators(result, is_avds)
+  local lines = M.to_selection_entries(result, EMULATOR, is_avds)
   if #lines > 0 then
+    local on_select
+    if is_avds then
+      on_select = function(emulator) M.launch_emulator_avd(emulator) end
+    else
+      on_select = function(emulator) M.launch_emulator(emulator) end
+    end
     ui.select({
       title = "Flutter emulators",
       lines = lines,
-      on_select = function(emulator) M.launch_emulator(emulator) end,
+      on_select = on_select,
     })
+  else
+    print("no emulators")
   end
 end
 
+function M.list_emulators_avds()
+  executable.emulator(function(cmd)
+    local job = Job:new({ command = cmd, args = { "-list-avds" } })
+    job:after_success(vim.schedule_wrap(function(j) show_emulators(j:result(), true) end))
+    job:after_failure(
+      vim.schedule_wrap(
+        function(j) return ui.notify(utils.join(j:stderr_result()), ui.ERROR, { timeout = 5000 }) end
+      )
+    )
+    job:start()
+  end)
+end
+
 function M.list_emulators()
   executable.flutter(function(cmd)
     local job = Job:new({ command = cmd, args = { "emulators" } })
diff --git a/lua/flutter-tools/executable.lua b/lua/flutter-tools/executable.lua
index 64dec39c..71e90024 100644
--- a/lua/flutter-tools/executable.lua
+++ b/lua/flutter-tools/executable.lua
@@ -21,6 +21,7 @@ local Job = require("plenary.job")
 ---
 --- True if fvm provides the Flutter SDK, otherwise nil or false.
 ---@field fvm boolean?
+---@field emulator_bin string
 
 ---@private
 ---@class flutter.internal.Paths
@@ -83,6 +84,7 @@ local function get_default_binaries()
     flutter_bin = flutter_bin,
     dart_bin = fn.resolve(fn.exepath("dart")),
     flutter_sdk = flutter_sdk_root(flutter_bin),
+    emulator_bin = fn.resolve(fn.exepath("emulator")),
   }
 end
 
@@ -151,6 +153,7 @@ function M.get(callback)
         -- Provide default values to make the linter happy.
         dart_sdk = "",
         dart_bin = "",
+        emulator_bin = fn.exepath("emulator") or "",
       }
       cached_paths.dart_sdk = dart_sdk_root(cached_paths)
       cached_paths.dart_bin = flutter_sdk_dart_bin(cached_paths.flutter_sdk)
@@ -166,6 +169,7 @@ function M.get(callback)
       -- Provide default values to make the linter happy.
       dart_sdk = "",
       dart_bin = "",
+      emulator_bin = fn.exepath("emulator") or "",
     }
     cached_paths.dart_sdk = dart_sdk_root(cached_paths)
     cached_paths.dart_bin = flutter_sdk_dart_bin(cached_paths.flutter_sdk)
@@ -179,6 +183,7 @@ function M.get(callback)
         flutter_sdk = paths.flutter_sdk,
         dart_bin = paths.dart_bin,
         dart_sdk = dart_sdk_root(paths),
+        emulator_bin = fn.exepath("emulator") or "",
       }
       callback(paths)
     end)
@@ -192,6 +197,7 @@ function M.get(callback)
         flutter_sdk = internal_paths.flutter_sdk,
         dart_bin = internal_paths.dart_bin,
         dart_sdk = dart_sdk_root(internal_paths),
+        emulator_bin = fn.exepath("emulator") or "",
       }
       if cached_paths.flutter_sdk then
         cached_paths.dart_bin = flutter_sdk_dart_bin(cached_paths.flutter_sdk)
@@ -208,6 +214,12 @@ function M.flutter(callback)
   M.get(function(paths) callback(paths.flutter_bin) end)
 end
 
+--- Fetch the path to the users androidSdk -> emulator installation.
+---@param callback fun(emulator_bin: string):nil
+function M.emulator(callback)
+  M.get(function(paths) callback(paths.emulator_bin) end)
+end
+
 --- Fetch the path to the users dart installation.
 ---@param callback fun(dart_bin: string):nil
 function M.dart(callback)
diff --git a/lua/flutter-tools/menu.lua b/lua/flutter-tools/menu.lua
index 943c7dfa..d7b04bf4 100644
--- a/lua/flutter-tools/menu.lua
+++ b/lua/flutter-tools/menu.lua
@@ -199,6 +199,12 @@ function M.commands(opts)
       hint = "Show the available emulator devices",
       command = require("flutter-tools.devices").list_emulators,
     },
+    {
+      id = "flutter-tools-list-emulators-avd",
+      label = "List Emulator avds",
+      hint = "Show the available avds",
+      command = require("flutter-tools.devices").list_emulators_avds,
+    },
     {
       id = "flutter-tools-open-outline",
       label = "Open Outline",