package accountlogic

import (
	"context"
	"fmt"
	"math"

	domain "code.30cm.net/digimon/app-cloudep-member-server/pkg/domain/member"
	"code.30cm.net/digimon/app-cloudep-member-server/pkg/domain/usecase"
	"code.30cm.net/digimon/library-go/errs"

	"code.30cm.net/digimon/app-cloudep-member-server/gen_result/pb/member"
	"code.30cm.net/digimon/app-cloudep-member-server/internal/svc"

	"github.com/zeromicro/go-zero/core/logx"
)

type CreateUserAccountLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
	logx.Logger
}

func NewCreateUserAccountLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreateUserAccountLogic {
	return &CreateUserAccountLogic{
		ctx:    ctx,
		svcCtx: svcCtx,
		Logger: logx.WithContext(ctx),
	}
}

type createUserAccountReq struct {
	LoginID string `validate:"required"`
	Token   string `validate:"required"`
}

// CreateUserAccount 建立帳號與密碼 -> 可登入，但可不可以做其他事情看業務流程，也可以只註冊就好
func (l *CreateUserAccountLogic) CreateUserAccount(in *member.CreateLoginUserReq) (*member.OKResp, error) {
	// 驗證資料
	if err := l.svcCtx.Validate.ValidateAll(&createUserAccountReq{
		LoginID: in.GetLoginId(),
		Token:   in.GetToken(),
	}); err != nil {
		return nil, errs.InvalidFormat(err.Error())
	}

	toInt8, err := safeInt64ToInt8(in.GetPlatform())
	if err != nil {
		return nil, err
	}

	platform := domain.Platform(toInt8)
	if platform.ToString() == "" {
		return nil, errs.InvalidFormat("platform not found")
	}

	err = l.svcCtx.AccountUseCase.CreateUserAccount(l.ctx, usecase.CreateLoginUserRequest{
		LoginID:  in.GetLoginId(),
		Platform: platform,
		Token:    in.GetToken(),
	})
	if err != nil {
		return nil, err
	}

	return &member.OKResp{}, nil
}

func safeInt64ToInt8(n int64) (int8, error) {
	if n < math.MinInt8 || n > math.MaxInt8 {
		return 0, fmt.Errorf("int64 value %d out of int8 range", n)
	}

	return int8(n), nil
}