-- ============================================================================
-- 统一构建/运行/调试分发器
-- 根据项目类型自动选择正确的工具
-- ============================================================================

local M = {}

--- 检测当前项目类型
---@return "rust"|"cmake"|"python"|"go"|"unknown"
function M.detect()
    local cwd = vim.fn.getcwd()

    if vim.fn.filereadable(cwd .. "/Cargo.toml") == 1 then return "rust" end
    if vim.fn.filereadable(cwd .. "/CMakeLists.txt") == 1 then return "cmake" end
    if vim.fn.filereadable(cwd .. "/go.mod") == 1 then return "go" end
    if vim.fn.filereadable(cwd .. "/pyproject.toml") == 1 then return "python" end
    if vim.fn.filereadable(cwd .. "/setup.py") == 1 then return "python" end

    return "unknown"
end

--- 构建
function M.build()
    local project = M.detect()

    if project == "rust" then
        vim.cmd("RustLsp runnables")
    elseif project == "cmake" then
        vim.cmd("CMakeBuild")
    elseif project == "go" then
        local result = vim.fn.system("go build ./...")
        if vim.v.shell_error == 0 then
            vim.notify("go build 成功", vim.log.levels.INFO)
        else
            vim.notify("go build 失败:\n" .. result, vim.log.levels.ERROR)
        end
    else
        vim.notify("未识别的项目类型，无法自动构建", vim.log.levels.WARN)
    end
end

--- 运行
function M.run()
    local project = M.detect()

    if project == "rust" then
        vim.cmd("RustLsp runnables")
    elseif project == "cmake" then
        vim.cmd("CMakeRun")
    elseif project == "go" then
        vim.cmd("terminal go run .")
    elseif project == "python" then
        vim.cmd("terminal python " .. vim.fn.expand("%"))
    else
        vim.notify("未识别的项目类型，无法自动运行", vim.log.levels.WARN)
    end
end

--- 调试
function M.debug()
    local project = M.detect()

    if project == "rust" then
        vim.cmd("RustLsp debuggables")
    elseif project == "cmake" then
        vim.cmd("CMakeDebug")
    else
        -- 通用 DAP 启动
        require("dap").continue()
    end
end

--- 测试
function M.test()
    local project = M.detect()

    if project == "rust" then
        vim.cmd("RustLsp testables")
    elseif project == "cmake" then
        vim.cmd("CMakeBuild")
        vim.cmd("terminal ctest --test-dir build")
    elseif project == "go" then
        vim.cmd("terminal go test ./...")
    elseif project == "python" then
        vim.cmd("terminal pytest")
    else
        vim.notify("未识别的项目类型，无法自动测试", vim.log.levels.WARN)
    end
end

return M