package main

import (
	"fmt"
	"os"

	"nex/backend/pkg/projectversion"
)

func main() {
	if err := run(os.Args[1:]); err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}

func run(args []string) error {
	if len(args) == 0 {
		return usageError()
	}

	root, err := projectversion.FindRepoRoot(mustGetwd())
	if err != nil {
		return err
	}

	switch args[0] {
	case "print":
		version, readErr := projectversion.ReadString(root)
		if readErr != nil {
			return readErr
		}
		fmt.Println(version)
		return nil
	case "sync":
		return projectversion.Sync(root)
	case "check":
		return projectversion.Check(root)
	case "verify-tag":
		if len(args) != 2 {
			return fmt.Errorf("verify-tag 需要一个 tag 参数")
		}
		return projectversion.VerifyTag(root, args[1])
	case "macos-plist":
		if len(args) != 2 {
			return fmt.Errorf("macos-plist 需要一个最低系统版本参数")
		}
		return printMacOSPlist(root, args[1])
	case "asset-name":
		return printAssetName(root, args[1:])
	default:
		return usageError()
	}
}

func printMacOSPlist(root, minMacOSVersion string) error {
	version, err := projectversion.ReadString(root)
	if err != nil {
		return err
	}

	plist, err := projectversion.DesktopInfoPlist(version, minMacOSVersion)
	if err != nil {
		return err
	}

	fmt.Print(plist)
	return nil
}

func printAssetName(root string, args []string) error {
	if len(args) < 2 {
		return fmt.Errorf("asset-name 至少需要 kind 和 platform 参数")
	}

	version, err := projectversion.ReadString(root)
	if err != nil {
		return err
	}

	switch args[0] {
	case "server":
		if len(args) != 3 {
			return fmt.Errorf("server 资产命名需要 platform 和 arch 参数")
		}
		name, nameErr := projectversion.ServerAssetName(version, args[1], args[2])
		if nameErr != nil {
			return nameErr
		}
		fmt.Println(name)
		return nil
	case "desktop":
		if len(args) != 2 {
			return fmt.Errorf("desktop 资产命名只需要 platform 参数")
		}
		name, nameErr := projectversion.DesktopAssetName(version, args[1])
		if nameErr != nil {
			return nameErr
		}
		fmt.Println(name)
		return nil
	default:
		return fmt.Errorf("不支持的资产类型 %q", args[0])
	}
}

func mustGetwd() string {
	wd, err := os.Getwd()
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}

	return wd
}

func usageError() error {
	return fmt.Errorf("用法: versionctl <print|sync|check|verify-tag|macos-plist|asset-name>")
}