package javagen

import (
	"errors"
	"fmt"
	"strings"

	"github.com/logrusorgru/aurora"
	"github.com/spf13/cobra"
	"github.com/zeromicro/go-zero/core/logx"
	"github.com/zeromicro/go-zero/tools/goctl/api/parser"
	"github.com/zeromicro/go-zero/tools/goctl/util/pathx"
)

var (
	// VarStringDir describes a directory.
	VarStringDir string
	// VarStringAPI describes an API.
	VarStringAPI string
)

// JavaCommand generates java code command entrance.
func JavaCommand(_ *cobra.Command, _ []string) error {
	apiFile := VarStringAPI
	dir := VarStringDir
	if len(apiFile) == 0 {
		return errors.New("missing -api")
	}
	if len(dir) == 0 {
		return errors.New("missing -dir")
	}

	api, err := parser.Parse(apiFile)
	if err != nil {
		return err
	}

	if err := api.Validate(); err != nil {
		return err
	}

	api.Service = api.Service.JoinPrefix()
	packetName := strings.TrimSuffix(api.Service.Name, "-api")
	logx.Must(pathx.MkdirIfNotExist(dir))
	logx.Must(genPacket(dir, packetName, api))
	logx.Must(genComponents(dir, packetName, api))

	fmt.Println(aurora.Green("Done."))
	return nil
}