-- https://phelipetls.github.io/posts/async-make-in-nvim-with-lua/
local M = {}
local util = require("go.utils")
local log = util.log
local trace = util.trace

local function compile_efm()
  local efm = [[%-G#\ %.%#]]
  efm = efm .. [[,%-G%.%#panic:\ %m]]
  efm = efm .. [[,%Ecan\'t\ load\ package:\ %m]]
  efm = efm .. [[,%A%\\%%\(%[%^:]%\\+:\ %\\)%\\?%f:%l:%c:\ %m]]
  efm = efm .. [[,%A%\\%%\(%[%^:]%\\+:\ %\\)%\\?%f:%l:\ %m]]
  efm = efm .. [[,%C%*\\s%m]]
  efm = efm .. [[,%-G%.%#]]
  return efm
end

local namepath = {}

local function extract_filepath(msg)
  msg = msg or ""
  --[[     or [[    findAllSubStr_test.go:234: Error inserting caseResult1: operation error DynamoDB: PutItem, exceeded maximum number of attempts]]

  local pos, _ = msg:find([[[%w_-]+_test%.go:%d+:]])
  if pos == nil then
    return
  end
  local pos2 = msg:find(":")
  local s = msg:sub(pos, pos2 - 1)
  if namepath[s] ~= nil then
    return namepath[s]
  end
  if vim.fn.executable("find") == 0 then
    return
  end
  local cmd = "find ./ -type f -name " .. s
  local path = vim.fn.systemlist(cmd)
  for _, value in pairs(path) do
    local st, _ = value:find(s)
    trace(value, st)
    if st then
      local p = value:sub(1, st - 1)
      namepath[st] = p
      return p
    end
  end
end

function M.make(...)
  local args = { ... }
  local lines = {}
  local errorlines = {}
  local winnr = vim.fn.win_getid()
  local bufnr = vim.api.nvim_win_get_buf(winnr)
  local makeprg = vim.api.nvim_buf_get_option(bufnr, "makeprg")

  log(makeprg, args)
  local indent = "%\\%(    %\\)"
  if not makeprg then
    log("makeprog not setup")
    return
  end

  local efm = [[%-G#\ %.%#]]
  if makeprg:find("go build") then
    vim.cmd([[setl errorformat=%-G#\ %.%#]])
    -- if makeprg:find("go build") then
    efm = compile_efm()
  end
  -- end

  local runner = "golangci-lint"
  if makeprg:find("golangci%-lint") then
    -- lint
    efm = efm .. [[,%A%\\%%(%[%^:]%\\+:\ %\\)%\\?%f:%l:%c:\ %m]]
    efm = efm .. [[,%A%\\%%(%[%^:]%\\+:\ %\\)%\\?%f:%l:\ %m]]

    local pwd = util.work_path()
    local cfg = pwd .. ".golangci.yml"

    if util.file_exists(cfg) then
      makeprg = makeprg .. [[\ -c\ ]] .. cfg
      -- vim.api.nvim_buf_set_option(bufnr, "makeprg", makeprg)
    end
  end
  local compile_test = false
  if makeprg:find("test") then
    if vim.tbl_contains(args, "-c") then
      log("compile test")
      compile_test = true
      efm = compile_efm()
    end
  end
  if makeprg:find("go run") then
    runner = "go run"
    if args == nil or #args == 0 then
      makeprg = makeprg .. " ."
    end
    efm = efm .. [[,%A%\\t%#%f:%l\ +0x%[0-9A-Fa-f]%\\+]]

    log("go run", makeprg)
  end

  if makeprg:find("go vet") then
    runner = "go vet"
    if args == nil or #args == 0 then
      makeprg = makeprg .. " ."
    end

    efm = compile_efm()
    efm = efm .. [[,%-Gexit\ status\ %\\d%\\+]]
  end

  if makeprg:find("test") then
    log("go test")

    runner = "go test"
    efm = compile_efm()
  end

  local cmd = vim.fn.split(makeprg, " ")

  if args and #args > 0 then
    cmd = vim.list_extend(cmd, args)
  end

  local function handle_color(line)
    if _GO_NVIM_CFG.run_in_floaterm then
      return line
    end
    if tonumber(vim.fn.match(line, "\\%x1b\\[[0-9;]\\+")) < 0 then
      return line
    end
    if type(line) ~= "string" then
      return line
    end
    line = vim.fn.substitute(line, "\\%x1b\\[[0-9;]\\+[mK]", "", "g")
    trace(line)
    return line
  end

  if _GO_NVIM_CFG.run_in_floaterm then
    local term = require("go.term").run
    term({ cmd = cmd, autoclose = false })
    return
  end
  local failed = false
  local itemn = 1
  local function on_event(job_id, data, event)
    -- log("stdout", data, event)
    if event == "stdout" then
      if data then
        for _, value in ipairs(data) do
          if value ~= "" then
            value = handle_color(value)
            if value:find("FAIL") then
              failed = true
            end
            local changed = false
            if vim.fn.empty(vim.fn.glob(args[#args])) == 0 then
              changed = true
              if value:find("=== RUN") == nil and value:find("FAIL") == nil then
                value = args[4] .. util.sep() .. util.ltrim(value)
              end
            else
              local p = extract_filepath(value)
              if p then
                failed = true
                value = p .. util.ltrim(value)
                changed = true
              end
            end
            table.insert(lines, value)
            if itemn == 1 and failed and changed then
              itemn = #lines
            end
          end
        end
      end
    end

    if event == "stderr" then
      if data then
        for _, value in ipairs(data) do
          if value ~= "" then
            table.insert(errorlines, value)
          end
        end
      end
      if next(errorlines) ~= nil and runner == "golangci-lint" then
        efm =
          [[level=%tarning\ msg="%m:\ [%f:%l:%c:\ %.%#]",level=%tarning\ msg="%m",level=%trror\ msg="%m:\ [%f:%l:%c:\ %.%#]",level=%trror\ msg="%m",%f:%l:%c:\ %m,%f:%l:\ %m,%f:%l\ %m]]
      end
    end

    if event == "exit" then
      if #errorlines > 0 then
        if #lines > 0 then
          vim.list_extend(errorlines, lines)
        end
        vim.fn.setqflist({}, " ", {
          title = cmd,
          lines = errorlines,
          efm = efm,
        })

        vim.api.nvim_command("doautocmd QuickFixCmdPost")
        vim.cmd("botright copen")
      elseif #lines > 0 then
        vim.fn.setqflist({}, " ", {
          title = cmd,
          lines = lines,
        })
      end

      if type(cmd) == "table" then
        cmd = table.concat(cmd, " ")
      end
      vim.notify(cmd .. " finished", vim.lsp.log_levels.WARN)
      _GO_NVIM_CFG.job_id = nil
      if failed then
        vim.notify("go test failed", vim.lsp.log_levels.WARN)
        vim.cmd("copen")
        vim.cmd("cc " .. tostring(itemn))
      end

      itemn = 1
      failed = false
    end
  end

  log("cmd ", cmd)
  _GO_NVIM_CFG.job_id = vim.fn.jobstart(cmd, {
    on_stderr = on_event,
    on_stdout = on_event,
    on_exit = on_event,
    stdout_buffered = true,
    stderr_buffered = true,
  })
end

M.stopjob = function(id)
  id = id or _GO_NVIM_CFG.job_id
  if id == nil then
    return
  end
  local r = vim.fn.jobstop(id)
  if r == 1 then
    _GO_NVIM_CFG.job_id = nil
  else
    util.warn("failed to stop job " .. tostring(id))
  end
end

return M