feat: tools support copilot (#1183)

lua/avante/providers/copilot.lua

@@ -31,7 +31,7 @@ local Config = require("avante.config")
 local Path = require("plenary.path")
 local Utils = require("avante.utils")
 local P = require("avante.providers")
-local O = require("avante.providers").openai
+local OpenAI = require("avante.providers").openai
 
 local H = {}
 
@@ -215,10 +215,31 @@ M.parse_messages = function(opts)
   vim
     .iter(opts.messages)
     :each(function(msg) table.insert(messages, { role = M.role_map[msg.role], content = msg.content }) end)
+  if opts.tool_result then
+    table.insert(messages, {
+      role = M.role_map["assistant"],
+      tool_calls = {
+        {
+          id = opts.tool_use.id,
+          type = "function",
+          ["function"] = {
+            name = opts.tool_use.name,
+            arguments = opts.tool_use.input_json,
+          },
+        },
+      },
+    })
+    local result_content = opts.tool_result.content or ""
+    table.insert(messages, {
+      role = "tool",
+      tool_call_id = opts.tool_result.tool_use_id,
+      content = opts.tool_result.is_error and "Error: " .. result_content or result_content,
+    })
+  end
   return messages
 end
 
-M.parse_response = O.parse_response
+M.parse_response = OpenAI.parse_response
 
 M.parse_curl_args = function(provider, code_opts)
   -- refresh token synchronously, only if it has expired
@@ -227,6 +248,13 @@ M.parse_curl_args = function(provider, code_opts)
 
   local base, body_opts = P.parse_config(provider)
 
+  local tools = {}
+  if code_opts.tools then
+    for _, tool in ipairs(code_opts.tools) do
+      table.insert(tools, OpenAI.transform_tool(tool))
+    end
+  end
+
   return {
     url = H.chat_completion_url(base.endpoint),
     timeout = base.timeout,
@@ -242,6 +270,7 @@ M.parse_curl_args = function(provider, code_opts)
       model = base.model,
       messages = M.parse_messages(code_opts),
       stream = true,
+      tools = tools,
     }, body_opts),
   }
 end