refactor: add frontend.hover.load function to set buffer content

lua/Trans/core/buffer.lua

@@ -123,11 +123,13 @@ end
 ---@param nodes string|table|table[] string -> as line content | table -> as a node | table[] -> as node[]
 ---@param linenr number? line number should be set[one index] or let it be nil to append
 function buffer:setline(nodes, linenr)
-    linenr = linenr and linenr - 1 or -1
+    self:set('modifiable', true)
+    linenr = linenr and linenr - 1 or self:line_count()
 
     if type(nodes) == 'string' then
         api.nvim_buf_set_lines(self.bufnr, linenr, linenr, false, { nodes })
-    elseif type(nodes) == 'table' then
+
+    else
         if type(nodes[1]) == 'string' then
             -- FIXME :set [nodes] type as node
             ---@diagnostic disable-next-line: assign-type-mismatch
@@ -149,6 +151,8 @@ function buffer:setline(nodes, linenr)
             end
         end
     end
+
+    self:set('modifiable', false)
 end
 
 ---@private
@@ -183,6 +187,7 @@ function buffer.new()
     }, buffer)
 
 
+    new_buf:set('modifiable', false)
     new_buf:set('filetype', 'Trans')
     new_buf:set('buftype', 'nofile')
     return new_buf

lua/Trans/core/data.lua

@@ -3,8 +3,20 @@ local Trans = require('Trans')
 local M = {}
 M.__index = M
 
+---@class data
+---@field str string
+---@field mode string
+---@field result table
+---@field frontend table
+---@field backend table
+---@field from string
+---@field to string
+---@field is_word boolean
 
 
+---Data constructor
+---@param opts table
+---@return data
 function M.new(opts)
     local mode = opts.mode
     local str  = opts.str
@@ -39,4 +51,17 @@ function M.new(opts)
     return setmetatable(data, M)
 end
 
+-- ---Get the first available result [return nil if no result]
+-- ---@return table?
+-- function M:get_available_result()
+--     local result = self.result
+--     local backend = self.backend
+
+--     for _, name in ipairs(backend) do
+--         if result[name] then
+--             return result[name]
+--         end
+--     end
+-- end
+
 return M

lua/Trans/core/translate.lua

@@ -13,19 +13,26 @@ local function init_opts(opts)
     return opts
 end
 
-local function set_result(data)
+
+local function do_query(data)
     -- HACK :Rewrite this function to support multi requests
     local frontend = data.frontend
+    local result = data.result
     for _, backend in ipairs(data.backend) do
         local name = backend.name
         if backend.no_wait then
             backend.query(data)
         else
             backend.query(data)
-            frontend:wait(data.result, name, backend.timeout)
+            frontend:wait(result, name, backend.timeout)
         end
 
-        if type(data.result[name]) == 'table' then break end
+
+        if type(result[name]) == 'table' then
+            return result[name]
+        else
+            result[name] = nil
+        end
     end
 end
 
@@ -46,20 +53,11 @@ local function process(opts)
 
 
     local data = Trans.data.new(opts)
-    set_result(data)
-
-
-    local success = false
-    for _, v in pairs(data.result) do
-        if type(v) == "table" then
-            success = true
-            break
-        end
-    end
-    if success == false then return end
+    local result = do_query(data)
 
+    if not result then return end
     Trans.cache[data.str] = data
-    data.frontend:process(data)
+    data.frontend:process(data, result)
 end
 
 return coroutine.wrap(process)