package system

import (
	"context"
	"errors"
	"time"
)

var ErrInvalidVersion = errors.New("版本信息格式错误")

type VersionStage string

const (
	VersionStageMenus        VersionStage = "menus"
	VersionStageAPIs         VersionStage = "apis"
	VersionStageDictionaries VersionStage = "dictionaries"
	VersionStageJSON         VersionStage = "json"
	VersionStageSave         VersionStage = "save"
)

type VersionStageError struct {
	Stage VersionStage
	Err   error
}

func (e *VersionStageError) Error() string { return e.Err.Error() }
func (e *VersionStageError) Unwrap() error { return e.Err }

type Version struct {
	ID          uint
	CreatedAt   time.Time
	UpdatedAt   time.Time
	Name        *string
	Code        *string
	Description *string
	Data        *string
}
type VersionBundle struct {
	Name         string
	Code         string
	Description  string
	ExportTime   string
	Menus        []*Menu
	APIs         []*API
	Dictionaries []*Dictionary
}
type VersionRepo interface {
	CreateVersion(context.Context, *Version) error
	DeleteVersions(context.Context, []uint) error
	FindVersion(context.Context, uint) (*Version, error)
	ListVersions(context.Context, int, int, string, string, []*time.Time) ([]*Version, int64, error)
	BuildVersionBundle(context.Context, []uint, []uint, []uint) (*VersionBundle, error)
	ImportVersionBundle(context.Context, *VersionBundle) error
}
type VersionUsecase struct{ VersionRepo }

func NewVersionUsecase(repo VersionRepo) *VersionUsecase { return &VersionUsecase{VersionRepo: repo} }