initialize with first MVP

lua/test-samurai/core.lua

@@ -0,0 +1,175 @@
+local config = require("test-samurai.config")
+
+local M = {}
+
+local state = {
+  runners = {},
+  last_win = nil,
+  last_buf = nil,
+}
+
+local function load_runners()
+  state.runners = {}
+  local opts = config.get()
+  local mods = opts.runner_modules or {}
+  for _, mod in ipairs(mods) do
+    local ok, runner = pcall(require, mod)
+    if ok and type(runner) == "table" then
+      table.insert(state.runners, runner)
+    else
+      vim.notify("[test-samurai] Failed to load runner " .. mod, vim.log.levels.WARN)
+    end
+  end
+end
+
+function M.setup()
+  load_runners()
+end
+
+function M.reload_runners()
+  load_runners()
+end
+
+function M.get_runner_for_buf(bufnr)
+  for _, runner in ipairs(state.runners) do
+    if type(runner.is_test_file) == "function" then
+      local ok, is_test = pcall(runner.is_test_file, bufnr)
+      if ok and is_test then
+        return runner
+      end
+    end
+  end
+  return nil
+end
+
+local function open_float(lines)
+  if state.last_win and vim.api.nvim_win_is_valid(state.last_win) then
+    pcall(vim.api.nvim_win_close, state.last_win, true)
+  end
+  if state.last_buf and vim.api.nvim_buf_is_valid(state.last_buf) then
+    pcall(vim.api.nvim_buf_delete, state.last_buf, { force = true })
+  end
+
+  local width = math.floor(vim.o.columns * 0.8)
+  local height = math.floor(vim.o.lines * 0.8)
+  local row = math.floor((vim.o.lines - height) / 2)
+  local col = math.floor((vim.o.columns - width) / 2)
+
+  local buf = vim.api.nvim_create_buf(false, true)
+  vim.api.nvim_buf_set_option(buf, "bufhidden", "wipe")
+  vim.api.nvim_buf_set_option(buf, "filetype", "test-samurai-output")
+  vim.api.nvim_buf_set_lines(buf, 0, -1, false, lines)
+
+  local win = vim.api.nvim_open_win(buf, true, {
+    relative = "editor",
+    width = width,
+    height = height,
+    row = row,
+    col = col,
+    style = "minimal",
+    border = "rounded",
+  })
+
+  vim.keymap.set("n", "<esc><esc>", function()
+    if vim.api.nvim_win_is_valid(win) then
+      vim.api.nvim_win_close(win, true)
+    end
+  end, { buffer = buf, nowait = true, silent = true })
+
+  state.last_win = win
+  state.last_buf = buf
+end
+
+local function run_cmd(cmd, cwd, on_exit)
+  if vim.system then
+    vim.system(cmd, { cwd = cwd, text = true }, function(obj)
+      local code = obj.code or -1
+      local stdout = obj.stdout or ""
+      local stderr = obj.stderr or ""
+      vim.schedule(function()
+        on_exit(code, stdout, stderr)
+      end)
+    end)
+  else
+    local stdout_chunks = {}
+    local stderr_chunks = {}
+    vim.fn.jobstart(cmd, {
+      cwd = cwd,
+      stdout_buffered = true,
+      stderr_buffered = true,
+      on_stdout = function(_, data)
+        if data then
+          table.insert(stdout_chunks, table.concat(data, "\n"))
+        end
+      end,
+      on_stderr = function(_, data)
+        if data then
+          table.insert(stderr_chunks, table.concat(data, "\n"))
+        end
+      end,
+      on_exit = function(_, code)
+        local stdout = table.concat(stdout_chunks, "\n")
+        local stderr = table.concat(stderr_chunks, "\n")
+        on_exit(code, stdout, stderr)
+      end,
+    })
+  end
+end
+
+function M.run_nearest()
+  local bufnr = vim.api.nvim_get_current_buf()
+  local pos = vim.api.nvim_win_get_cursor(0)
+  local row = pos[1] - 1
+  local col = pos[2]
+
+  local runner = M.get_runner_for_buf(bufnr)
+  if not runner then
+    vim.notify("[test-samurai] No runner for this file", vim.log.levels.WARN)
+    return
+  end
+
+  if type(runner.find_nearest) ~= "function" or type(runner.build_command) ~= "function" then
+    vim.notify("[test-samurai] Runner missing methods", vim.log.levels.ERROR)
+    return
+  end
+
+  local ok, spec_or_err = pcall(runner.find_nearest, bufnr, row, col)
+  if not ok or not spec_or_err then
+    local msg = "[test-samurai] No test found"
+    if type(spec_or_err) == "string" then
+      msg = "[test-samurai] " .. spec_or_err
+    end
+    vim.notify(msg, vim.log.levels.WARN)
+    return
+  end
+  local spec = spec_or_err
+
+  local ok_cmd, command = pcall(runner.build_command, spec)
+  if not ok_cmd or not command or type(command.cmd) ~= "table" or #command.cmd == 0 then
+    vim.notify("[test-samurai] Runner failed to build command", vim.log.levels.ERROR)
+    return
+  end
+
+  local cmd = command.cmd
+  local cwd = command.cwd or vim.loop.cwd()
+
+  run_cmd(cmd, cwd, function(code, stdout, stderr)
+    local header = "$ " .. table.concat(cmd, " ")
+    local lines = { header, "" }
+    if stdout ~= "" then
+      local out_lines = vim.split(stdout, "\n", { plain = true })
+      vim.list_extend(lines, out_lines)
+    end
+    if stderr ~= "" then
+      table.insert(lines, "")
+      table.insert(lines, "[stderr]")
+      local err_lines = vim.split(stderr, "\n", { plain = true })
+      vim.list_extend(lines, err_lines)
+    end
+    table.insert(lines, "")
+    table.insert(lines, "[exit code] " .. tostring(code))
+    open_float(lines)
+  end)
+end
+
+return M