fix: use backend local strategy instead of global strategy

lua/Trans/backend/baidu.lua

@@ -58,14 +58,14 @@ function M.query(data)
             return
         end
 
-
         local result = body.trans_result
+
         if result then
             -- TEST :whether multi result
             assert(#result == 1)
             result = result[1]
             data.result.baidu = {
-                ['title'] = result.src,
+                ['str'] = result.src,
                 [data.from == 'en' and 'translation' or 'definition'] = { result.dst },
             }
         end

lua/Trans/backend/youdao.lua

@@ -46,6 +46,62 @@ function M.get_content(data)
     }
 end
 
+-- {
+--   dict = {
+--     url = "yddict://m.youdao.com/dict?le=eng&q=shows+your+registers+on+%22+in+NORMAL+or+%3CC-r%3E+in+INSERT+mode"
+--   },
+--   errorCode = "0",
+--   isWord = false,
+--   l = "en2zh-CHS",
+--   mTerminalDict = {
+--     url = "https://m.youdao.com/m/result?lang=en&word=shows+your+registers+on+%22+in+NORMAL+or+%3CC-r%3E+in+INSERT+mode"
+--   },
+--   query = 'shows your registers on " in NORMAL or <C-r> in INSERT mode',
+--   requestId = "9dddf583-1233-48a5-a9ca-f1d0324a5349",
+--   speakUrl = "https://openapi.youdao.com/ttsapi?q=shows+your+registers+on+%22+in+NORMAL+or+%3CC-r%3E+in+INSERT+mode&langType=en-USA&sign=8A0B3742F4E9FA92D4B65F028E1A6008&salt=1678931340864&voice=4&format=mp3&appKey=1858465a8708c121&ttsVoiceStrict=false",
+--   tSpeakUrl = "https://openapi.youdao.com/ttsapi?q=%E5%9C%A8%E6%AD%A3%E5%B8%B8%E6%88%96%3CC-r%3E%E6%8F%92%E5%85%A5%E6%A8%A1%E5%BC%8F%E4%B8%8B%E6%98%BE%E7%A4%BA%E4%BD%A0%E7%9A%84%E5%AF%84%E5%AD%98%E5%99%A8&langType=zh-CHS&sign=456E436DBEC35447D36157200FC5ACA7&salt=1678931340864&voice=4&format=mp3&appKey=1858465a8708c121&ttsVoiceStrict=false",
+--   translation = { "在正常或<C-r>插入模式下显示你的寄存器" },
+--   webdict = {
+--     url = "http://mobile.youdao.com/dict?le=eng&q=shows+your+registers+on+%22+in+NORMAL+or+%3CC-r%3E+in+INSERT+mode"
+--   }
+-- }
+
+-- {
+--   basic = {
+--     explains = { "normal", "regular", "normality" },
+--     phonetic = "zhèng cháng"
+--   },
+--   dict = {
+--     url = "yddict://m.youdao.com/dict?le=eng&q=%E6%AD%A3%E5%B8%B8"
+--   },
+--   errorCode = "0",
+--   isWord = true,
+--   l = "zh-CHS2en",
+--   mTerminalDict = {
+--     url = "https://m.youdao.com/m/result?lang=zh-CHS&word=%E6%AD%A3%E5%B8%B8"
+--   },
+--   query = "正常",
+--   requestId = "a8a40c0e-0d3b-49d5-a8fe-b1cd211ff5db",
+--   returnPhrase = { "正常" },
+--   speakUrl = "https://openapi.youdao.com/ttsapi?q=%E6%AD%A3%E5%B8%B8&langType=zh-CHS&sign=164F6EFF2EFFC7626FB70DBCF796AE70&salt=1678931501049&voice=4&format=mp3&appKey=1858465a8708c121&ttsVoiceStrict=false",
+--   tSpeakUrl = "https://openapi.youdao.com/ttsapi?q=normal&langType=en-USA&sign=6A0CF2EF076EA8D82453956B33F69A51&salt=1678931501049&voice=4&format=mp3&appKey=1858465a8708c121&ttsVoiceStrict=false",
+--   translation = { "normal" },
+--   web = { {
+--       key = "正常",
+--       value = { "normal", "ordinary", "normo", "regular" }
+--     }, {
+--       key = "正常利润",
+--       value = { "normal profits" }
+--     }, {
+--       key = "邦交正常化",
+--       value = { "normalize relations", "normalization of diplomatic relations" }
+--     } },
+--   webdict = {
+--     url = "http://mobile.youdao.com/dict?le=eng&q=%E6%AD%A3%E5%B8%B8"
+--   }
+-- }
+
+
 ---@overload fun(TransData): TransResult
 ---Query Using Baidu API
 ---@param data TransData
@@ -63,17 +119,12 @@ function M.query(data)
             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,
+            ['title'] = body.src,
-                [data.from == 'en' and 'translation' or 'definition'] = { result.dst },
+            [data.from == 'en' and 'translation' or 'definition'] = body.translation,
         }
     end
-    end
 
     require('Trans').curl.get(M.uri, {
         query = M.get_content(data),

lua/Trans/core/conf.lua

@@ -69,8 +69,9 @@ return {
                 'CursorMoved',
                 'BufLeave',
             },
-            ---@type string[] order to display translate result
+            ---@type table<string, string[]> order to display translate result
             order             = {
+                offline = {
                     'title',
                     'tag',
                     'pos',
@@ -78,6 +79,7 @@ return {
                     'translation',
                     'definition',
                 },
+            },
             ---@type table<string, string>
             icon              = {
                 -- or use emoji

lua/Trans/core/data.lua

@@ -52,6 +52,7 @@ function M.new(opts)
 end
 
 ---@class TransResult
+---@field str? string? @The original string
 ---@field title table | string @table: {word, phonetic, oxford, collins}
 ---@field tag string[]? @array of tags
 ---@field pos table<string, string>? @table: {name, value}
@@ -61,14 +62,17 @@ end
 
 
 ---Get the first available result [return nil if no result]
----@return TransResult?
+---@return TransResult | false?
+---@return string? backend.name
 function M:get_available_result()
     local result = self.result
 
+    if result['offline'] then return result['offline'], 'offline' end
+
     for _, backend in ipairs(self.backends) do
         if result[backend.name] then
             ---@diagnostic disable-next-line: return-type-mismatch
-            return result[backend.name]
+            return result[backend.name], backend.name
         end
     end
 end

lua/Trans/core/translate.lua

@@ -13,28 +13,27 @@ local function init_opts(opts)
 end
 
 
----@type table<string, fun(data: TransData, update: fun()): TransResult|false?>
+---@type table<string, fun(data: TransData): true | nil>
 local strategy = {
-    fallback = function(data, update)
+    fallback = function(data)
         local result = data.result
+        Trans.backend.offline.query(data)
+        if result.offline then return true end
 
+
+        local update = data.frontend:wait()
         for _, backend in ipairs(data.backends) do
             ---@cast backend TransBackend
-            local name = backend.name
             backend.query(data)
+            local name = backend.name
 
             while result[name] == nil do
-                if not update() then
+                if not update() then return end
-                    break
-                end
             end
 
-            if type(result[name]) == 'table' then
+            if result[name] then return true end
-                return result[name]
-            end
         end
     end,
-
     --- TODO :More Strategys
 }
 
@@ -48,28 +47,16 @@ local function process(opts)
     -- Find in cache
     if Trans.cache[str] then
         local data = Trans.cache[str]
-
+        data.frontend:process(data)
-        local result = data:get_available_result()
-        if result then
-            data.frontend:process(data, result)
         return
     end
-    end
 
     local data = Trans.data.new(opts)
-    Trans.backend.offline.query(data)
+    if strategy[Trans.conf.query](data) then
-    local result = data.result['offline']
-    if not result then
-        result = strategy[Trans.conf.query](data, data.frontend:wait())
-        if not result then
-            data.frontend:fallback()
-            return
-        end
-    end
-
-
         Trans.cache[data.str] = data
-    data.frontend:process(data, result)
+    end
+
+    data.frontend:process(data)
 end
 
 

lua/Trans/frontend/hover/init.lua

@@ -116,12 +116,20 @@ function M:wait()
         buffer[1] = spinner[cur % size + 1] .. (cell):rep(cur)
         buffer:add_highlight(1, 'TransWaitting')
         pause(interval)
-        return cur == times
+        return cur < times
     end
 end
 
 ---FallBack window for no result
 function M:fallback()
+    if not self.window then
+        self:init_window {
+            height = 1,
+            width = self.opts.width,
+        }
+    end
+
+
     local buffer = self.buffer
     local opts = self.opts
     buffer:wipe()
@@ -153,34 +161,35 @@ end
 
 ---Display Result in hover window
 ---@param data TransData
----@param result TransResult
 ---@overload fun(result:TransResult)
-function M:process(data, result)
+function M:process(data)
+    if self.pin then return end
+
+    local result, name = data:get_available_result()
+    if not result then
+        self:fallback()
+        return
+    end
+    local opts = self.opts
+    if opts.auto_play then
+        (data.from == 'en' and data.str or result.definition[1]):play()
+    end
     -- local node = Trans.util.node
     -- local it, t, f = node.item, node.text, node.format
     -- self.buffer:setline(it('hello', 'MoreMsg'))
 
-    local opts = self.opts
-    if self.pin then return end
-
     local buffer = self.buffer
-    if not buffer:is_valid() then buffer:init() end
+    if not buffer:is_valid() then
-    buffer:deleteline(1)
+        buffer:init()
-
+    else
-
+        buffer:wipe()
-    if opts.auto_play then
-        (data.from == 'en' and data.str or result.definition[1]):play()
     end
 
-    for _, field in ipairs(opts.order) do
+    ---@cast name string
-        if result[field] then
+    self:load(result, name, opts.order[name])
-            self:load(result, field)
-        end
-    end
 
-    local window = self.window
     local display_size = Trans.util.display_size(buffer:lines(), opts.width)
-
+    local window = self.window
     if window and window:is_valid() then
         if opts.auto_resize then
             display_size.width = math.min(opts.width, display_size.width + opts.padding)

lua/Trans/frontend/hover/load.lua

@@ -1,5 +1,6 @@
 local node = require('Trans').util.node
 local it, t, f = node.item, node.text, node.format
+local interval = (' '):rep(4)
 
 local function conjunction(text)
     return {
@@ -9,27 +10,70 @@ local function conjunction(text)
     }
 end
 
-local interval = (' '):rep(4)
+---@type table<string, fun(hover:TransHover, result: TransResult)>
+local default = {
+    str = function(hover, result)
+        -- TODO :
+        hover.buffer:setline(it(result.str, 'TransWord'))
+    end,
+    translation = function(hover, result)
+        local translation = result.translation
+        if not translation then return end
 
-local strategy = {
+        local buffer = hover.buffer
-    title = function(hover, title)
+        buffer:setline(conjunction('中文翻译'))
-        if type(title) == 'string' then
+
-            hover.buffer:setline(it(title, 'TransWord'))
+        for _, value in ipairs(translation) do
-            return
+            buffer:setline(
+                it(interval .. value, 'TransTranslation')
+            )
         end
 
-        local icon = hover.opts.icon
+        buffer:setline('')
+    end,
+    definition = function(hover, result)
+        local definition = result.definition
+        if not definition then return end
 
+        local buffer = hover.buffer
+        buffer:setline(conjunction('英文注释'))
+
+        for _, value in ipairs(definition) do
+            buffer:setline(
+                it(interval .. value, 'TransDefinition')
+            )
+        end
+
+        buffer:setline('')
+    end,
+}
+
+---@diagnostic disable-next-line: assign-type-mismatch
+default.__index = default
+
+local strategy = setmetatable({}, {
+    __index = function(tbl, key)
+        tbl[key] = default
+        return tbl[key]
+    end,
+    __newindex = function(tbl, key, value)
+        rawset(tbl, key, setmetatable(value, default))
+    end
+})
+
+
+strategy.offline = {
+    title = function(hover, result)
+        local title = result.title
+        if not title then return end
+
+        local icon     = hover.opts.icon
 
         local word     = title.word
         local oxford   = title.oxford
         local collins  = title.collins
         local phonetic = title.phonetic
 
-
-        if not phonetic and not collins and not oxford then
-            hover.buffer:setline(it(word, 'TransWord'))
-        else
         hover.buffer:setline(f {
             width = hover.opts.width,
             text = t {
@@ -44,9 +88,11 @@ local strategy = {
                 it(oxford == 1 and icon.yes or icon.no)
             },
         })
-        end
     end,
-    tag = function(hover, tag)
+    tag = function(hover, result)
+        local tag = result.tag
+        if not tag then return end
+
         local buffer = hover.buffer
         buffer:setline(conjunction('标签'))
 
@@ -65,7 +111,10 @@ local strategy = {
 
         buffer:setline('')
     end,
-    exchange = function(hover, exchange)
+    exchange = function(hover, result)
+        local exchange = result.exchange
+        if not exchange then return end
+
         local buffer = hover.buffer
         buffer:setline(conjunction('词形变化'))
 
@@ -77,7 +126,10 @@ local strategy = {
 
         buffer:setline('')
     end,
-    pos = function(hover, pos)
+    pos = function(hover, result)
+        local pos = result.pos
+        if not pos then return end
+
         local buffer = hover.buffer
         buffer:setline(conjunction('词性'))
 
@@ -87,39 +139,20 @@ local strategy = {
             )
         end
 
-        buffer:setline('')
-    end,
-    translation = function(hover, translation)
-        local buffer = hover.buffer
-        buffer:setline(conjunction('中文翻译'))
-
-        for _, value in ipairs(translation) do
-            buffer:setline(
-                it(interval .. value, 'TransTranslation')
-            )
-        end
-
-        buffer:setline('')
-    end,
-    definition = function(hover, definition)
-        local buffer = hover.buffer
-        buffer:setline(conjunction('英文注释'))
-
-        for _, value in ipairs(definition) do
-            buffer:setline(
-                it(interval .. value, 'TransDefinition')
-            )
-        end
-
         buffer:setline('')
     end,
 }
 
-
+-- FIXME :
-
 
 ---@class TransHover
----@field load fun(hover: TransHover, result: TransResult, field: string)
+---@field load fun(hover: TransHover, result: TransResult, name: string, order: string[])
-return function(hover, result, field)
+return function(hover, result, name, order)
-    strategy[field](hover, result[field])
+    order = order or { 'str', 'translation', 'definition' }
+
+    local method = strategy[name]
+
+    for _, field in ipairs(order) do
+        method[field](hover, result)
+    end
 end