refactor: history messages (#1934)

lua/avante/history_message.lua

@@ -0,0 +1,28 @@
+local Utils = require("avante.utils")
+
+---@class avante.HistoryMessage
+local M = {}
+M.__index = M
+
+---@param message AvanteLLMMessage
+---@param opts? {is_user_submission?: boolean, visible?: boolean, displayed_content?: string, state?: avante.HistoryMessageState, uuid?: string, selected_filepaths?: string[], selected_code?: AvanteSelectedCode, just_for_display?: boolean}
+---@return avante.HistoryMessage
+function M:new(message, opts)
+  opts = opts or {}
+  local obj = setmetatable({}, M)
+  obj.message = message
+  obj.uuid = opts.uuid or Utils.uuid()
+  obj.state = opts.state or "generated"
+  obj.timestamp = Utils.get_timestamp()
+  obj.is_user_submission = false
+  obj.visible = true
+  if opts.is_user_submission ~= nil then obj.is_user_submission = opts.is_user_submission end
+  if opts.visible ~= nil then obj.visible = opts.visible end
+  if opts.displayed_content ~= nil then obj.displayed_content = opts.displayed_content end
+  if opts.selected_filepaths ~= nil then obj.selected_filepaths = opts.selected_filepaths end
+  if opts.selected_code ~= nil then obj.selected_code = opts.selected_code end
+  if opts.just_for_display ~= nil then obj.just_for_display = opts.just_for_display end
+  return obj
+end
+
+return M