feat: add youdao backend file

lua/Trans/README.md

@@ -11,3 +11,4 @@
 -   [x] waitting animation
 -   [x] init frontend window
 -   [ ] build frontend window format logic
+-   [ ] Add Query FallBack

lua/Trans/backend/baidu.lua

@@ -4,6 +4,7 @@
 ---@field app_id string
 ---@field app_passwd string
 ---@field disable boolean
+
 local M = {
     uri  = 'https://fanyi-api.baidu.com/api/trans/vip/translate',
     salt = tostring(math.random(bit.lshift(1, 15))),
@@ -12,7 +13,6 @@ local M = {
 
 local Trans = require('Trans')
 
-
 ---@class BaiduQuery
 ---@field q string
 ---@field from string
@@ -50,12 +50,6 @@ end
 ---Query Using Baidu API
 ---@param data TransData
 function M.query(data)
-    if M.disable then
-        data.result.baidu = false
-        return
-    end
-
-
     local handle = function(res)
         local status, body = pcall(vim.json.decode, res.body)
         if not status or not body then

lua/Trans/backend/youdao.lua

@@ -4,8 +4,86 @@
 ---@field app_id string
 ---@field app_passwd string
 ---@field disable boolean
+local M = {
+    uri  = 'https://openapi.youdao.com/api',
+    salt = tostring(math.random(bit.lshift(1, 15))),
+    name = 'youdao',
+}
+
+---@class YoudaoQuery
+---@field q string
+---@field from string
+---@field to string
+---@field appid string
+---@field salt string
+---@field sign string
+
+---Get content for query
+---@param data TransData
+---@return YoudaoQuery
+function M.get_content(data)
+    local str     = data.str
+    local app_id  = M.app_id
+    local salt    = M.salt
+    local curtime = tostring(os.time())
+    local input   = #str > 20 and
+        str:sub(1, 10) .. #str .. str:sub(-10) or str
+
+    -- sign=sha256(应用ID+input+salt+curtime+应用密钥)；
+    local hash    = app_id .. input .. salt .. curtime .. M.app_passwd
+    local sign    = vim.fn.sha256(hash)
 
 
+    return {
+        q        = str,
+        to       = data.from == 'zh' and 'en' or 'zh-CHS',
+        from     = 'auto',
+        signType = 'v3',
+        appKey   = app_id,
+        salt     = M.salt,
+        curtime  = curtime,
+        sign     = sign,
+    }
+end
+
+---@overload fun(TransData): TransResult
+---Query Using Baidu API
+---@param data TransData
+function M.query(data)
+    local handle = function(res)
+        local status, body = pcall(vim.json.decode, res.body)
+        if not status or not body then
+            data.result.youdao = false
+            data.trace = res
+            return
+        end
+
+        if true then
+            vim.print(body)
+            return
+        end
+
+        local result = body.trans_result
+        if result then
+            -- TEST :whether multi result
+            assert(#result == 1)
+            result = result[1]
+            data.result.youdao = {
+                ['title'] = result.src,
+                [data.from == 'en' and 'translation' or 'definition'] = { result.dst },
+            }
+        end
+    end
+
+    require('Trans').curl.get(M.uri, {
+        query = M.get_content(data),
+        callback = handle,
+    })
+end
+
+---@class TransBackend
+---@field youdao Youdao
+return M
 -- local GET = require("Trans.util.curl").GET
 -- return function(word)
 --     local isEn = word:isEn()

lua/Trans/core/translate.lua

@@ -24,14 +24,18 @@ local strategy = {
             backend.query(data)
 
             while result[name] == nil do
-                update()
+                if not update() then
+                    break
+                end
             end
 
             if type(result[name]) == 'table' then
                 return result[name]
             end
         end
-    end
+    end,
+
+    --- TODO :More Strategys
 }
 
 
@@ -58,7 +62,7 @@ local function process(opts)
     if not result then
         result = strategy[Trans.conf.query](data, data.frontend:wait())
         if not result then
-            -- data.frontend:fallback()
+            data.frontend:fallback()
             return
         end
     end

lua/Trans/core/util.lua

@@ -115,6 +115,23 @@ function M.display_size(lines, width)
     return { height = ds_height, width = ds_width }
 end
 
+---Center node utility function
+---@param node string -- TODO :Node
+---@param win_width integer window width
+---@return string
+function M.center(node, win_width)
+    if type(node) == 'string' then
+        local space = math.max(0, math.floor((win_width - node:width()) / 2))
+        return string.rep(' ', space) .. node
+    end
+
+    local str = node[1]
+    win_width = str:width()
+    local space = math.max(0, math.floor((win_width - str:width()) / 2))
+    node[1] = string.rep(' ', space) .. str
+    return node
+end
+
 ---Execute function in main loop
 ---@param func function function to be executed
 function M.main_loop(func)

lua/Trans/core/window.lua

@@ -157,17 +157,6 @@ function window:open()
     end
 end
 
--- function window:center(node)
---     -- TODO :
---     print('TODO Center')
---     -- local text = node[1]
---     -- local width = text:width()
---     -- local win_width = self.width
---     -- local space = math.max(math.floor((win_width - width) / 2), 0)
---     -- node[1] = (' '):rep(space) .. text
---     -- return node
--- end
-
 window.__index = window
 
 

lua/Trans/frontend/hover/init.lua

@@ -114,18 +114,42 @@ function M:wait()
     return function()
         cur = cur + 1
         buffer[1] = spinner[cur % size + 1] .. (cell):rep(cur)
-        buffer:add_highlight(1, 'MoreMsg')
+        buffer:add_highlight(1, 'TransWaitting')
         pause(interval)
         return cur == times
     end
 end
 
---     -- FIXME :
+---FallBack window for no result
---     -- vim.api.nvim_buf_set_lines(buffer.bufnr, 1, -1, true, {})
+function M:fallback()
---     -- print('jklajsdk')
+    local buffer = self.buffer
---     -- print(vim.fn.deletebufline(buffer.bufnr, 1))
+    local opts = self.opts
---     -- buffer:del()
+    buffer:wipe()
---     buffer[1] = ''
+    local fallback_msg = opts.fallback_message:gsub('{{(%w+)}}', opts.icon)
+
+    -- TODO :Center
+    buffer[1] = Trans.util.center(fallback_msg, opts.width)
+    buffer:add_highlight(1, 'TransFailed')
+    self:defer()
+end
+
+---Defer function when process done
+function M:defer()
+    self.window:set('wrap', true)
+    self.buffer:set('modifiable', false)
+
+
+    local auto_close_events = self.opts.auto_close_events
+    if auto_close_events then
+        vim.api.nvim_create_autocmd(auto_close_events, {
+            once = true,
+            callback = function()
+                if self.pin then return end
+                self:destroy()
+            end,
+        })
+    end
+end
 
 ---Display Result in hover window
 ---@param data TransData
@@ -156,6 +180,7 @@ function M:process(data, result)
 
     local window = self.window
     local display_size = Trans.util.display_size(buffer:lines(), opts.width)
+
     if window and window:is_valid() then
         if opts.auto_resize then
             display_size.width = math.min(opts.width, display_size.width + opts.padding)
@@ -169,21 +194,7 @@ function M:process(data, result)
             width = math.min(opts.width, display_size.width + opts.padding),
         }
     end
-
+    self:defer()
-    window:set('wrap', true)
-    buffer:set('modifiable', false)
-
-
-    local auto_close_events = opts.auto_close_events
-    if auto_close_events then
-        vim.api.nvim_create_autocmd(auto_close_events, {
-            once = true,
-            callback = function()
-                if self.pin then return end
-                self:destroy()
-            end,
-        })
-    end
 end
 
 ---Check if hover window and buffer are valid

lua/Trans/style/theme.lua

@@ -44,6 +44,9 @@ return {
         TransFailed = {
             fg = '#7aa89f',
         },
+        TransWaitting = {
+            link = 'MoreMsg'
+        },
     },
 
     --- TODO :
@@ -91,6 +94,9 @@ return {
         TransFailed = {
             fg = '#f4b085',
         },
+        TransWaitting = {
+            link = 'MoreMsg'
+        },
     },
     dracula = {
         TransWord = {
@@ -136,5 +142,8 @@ return {
         TransFailed = {
             fg = '#8be9fd',
         },
+        TransWaitting = {
+            link = 'MoreMsg'
+        },
     },
 }