refactor: rewrite setup and conf module

lua/Trans/backend/baidu.lua

@@ -1,15 +1,11 @@
----@class Baidu: TransOnlineBackend
----@field uri string api uri
----@field salt string
----@field app_id string
----@field app_passwd string
----@field disable boolean
+---@class Baidu: TransBackendOnline
+---@field conf { app_id: string, app_passwd: string }
 local M = {
-    uri     = 'https://fanyi-api.baidu.com/api/trans/vip/translate',
-    salt    = tostring(math.random(bit.lshift(1, 15))),
-    name    = 'baidu',
-    name_zh = '百度',
-    method  = 'get',
+    name         = 'baidu',
+    display_text = '百度',
+    uri          = 'https://fanyi-api.baidu.com/api/trans/vip/translate',
+    salt         = tostring(math.random(bit.lshift(1, 15))),
+    method       = 'get',
 }
 
 local Trans = require 'Trans'
@@ -25,26 +21,28 @@ local Trans = require 'Trans'
 ---Get content for query
 ---@param data TransData
 ---@return BaiduQuery
-local function get_query(data)
-    local tmp  = M.app_id .. data.str .. M.salt .. M.app_passwd
+function M.get_query(data)
+    local m_conf = M.conf
+    assert(m_conf, 'Load Baidu config failed')
+
+    local tmp  = m_conf.app_id .. data.str .. M.salt .. m_conf.app_passwd
     local sign = Trans.util.md5.sumhexa(tmp)
 
     return {
         q     = data.str,
         from  = data.from,
         to    = data.to,
-        appid = M.app_id,
+        appid = m_conf.app_id,
         salt  = M.salt,
         sign  = sign,
     }
 end
 
-
 ---@overload fun(body: table, data:TransData): TransResult
 ---Query Using Baidu API
 ---@param body table BaiduQuery Response
 ---@return table|false
-local function formatter(body, data)
+function M.formatter(body, data)
     local result = body.trans_result
     if not result then return false end
 
@@ -57,17 +55,7 @@ local function formatter(body, data)
     }
 end
 
-
----@class TransBackendCore
----@field baidu Baidu
-return {
-    name         = 'baidu',
-    display_text = '百度',
-    uri          = 'https://fanyi-api.baidu.com/api/trans/vip/translate',
-    method       = 'get',
-    get_query    = get_query,
-    formatter    = formatter,
-}
+return M
 
 
 

lua/Trans/backend/youdao.lua

@@ -1,15 +1,14 @@
----@class Youdao: TransOnlineBackend
+---@class Youdao: TransBackendOnline
 ---@field uri string api uri
 ---@field salt string
----@field app_id string
----@field app_passwd string
 ---@field disable boolean
+---@field conf { app_id: string, app_passwd: string }
 local M = {
-    uri     = 'https://openapi.youdao.com/api',
-    salt    = tostring(math.random(bit.lshift(1, 15))),
-    name    = 'youdao',
-    name_zh = '有道',
-    method  = 'get',
+    uri          = 'https://openapi.youdao.com/api',
+    name         = 'youdao',
+    display_text = '有道',
+    method       = 'get',
+    salt         = tostring(math.random(bit.lshift(1, 15))),
 }
 
 ---@class YoudaoQuery
@@ -26,7 +25,7 @@ local M = {
 ---@return YoudaoQuery
 function M.get_query(data)
     local str     = data.str
-    local app_id  = M.app_id
+    local m_conf  = M.conf
     local salt    = M.salt
     local curtime = tostring(os.time())
 
@@ -38,7 +37,7 @@ function M.get_query(data)
 
 
     -- sign=sha256(应用ID+input+salt+curtime+应用密钥)； 一二三四五六七八九十
-    local hash = app_id .. input .. salt .. curtime .. M.app_passwd
+    local hash = m_conf.app_id .. input .. salt .. curtime .. m_conf.app_passwd
     local sign = vim.fn.sha256(hash)
 
 
@@ -47,7 +46,7 @@ function M.get_query(data)
         to       = data.from == 'zh' and 'en' or 'zh-CHS',
         from     = 'auto',
         signType = 'v3',
-        appKey   = app_id,
+        appKey   = m_conf.app_id,
         salt     = M.salt,
         curtime  = curtime,
         sign     = sign,
@@ -160,6 +159,26 @@ end
 ---@class TransBackend
 ---@field youdao Youdao
 return M
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 -- INFO :Query Result Example
 -- {