-- headless test for merged-repl-plugin
local M = require('merged-repl-plugin')

local main = [[/home/dai/projects/reperl.nvim/test_main_repo]]
local repl = [[/home/dai/projects/reperl.nvim/test_repl_repo]]
local repl_file = repl .. '/repl.pl'
local sync_out = [[/home/dai/projects/reperl.nvim/tests/sync_result.txt]]
local repl_out = [[/home/dai/projects/reperl.nvim/tests/repl_output_captured.log]]

M.setup{ main_repo_path = main, repl_repo_path = repl, repl_file = repl_file, auto_start = false }

-- run sync_once and write result to file
M.sync_once(function(err, res)
  local f = io.open(sync_out, 'w')
  f:write(tostring(err) .. '\n')
  if res then f:write(vim.inspect(res) .. '\n') end
  f:close()
end)

-- run the repl using plugin runner
M.run_repl()

-- wait for buffer to appear and capture its contents to repl_out
local bufname = 'REPL Output: ' .. vim.fn.fnamemodify(repl, ':t')
local ok = vim.wait(2000, function()
  local bufnr = vim.fn.bufnr(bufname)
  if bufnr <= 0 then return false end
  local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
  return #lines > 0
end, 50)

local bufnr = vim.fn.bufnr(bufname)
if bufnr > 0 then
  local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
  local f = io.open(repl_out, 'w')
  f:write(table.concat(lines, '\n'))
  f:close()
end

-- exit
vim.cmd('qa!')