package service

import (
	"errors"

	"go-admin/app/admin/models"
	"go-admin/app/goauto/access"

	"gorm.io/gorm"
)

func validatePurchaserMenuSelection(db *gorm.DB, menuIDs []int) error {
	if len(menuIDs) == 0 {
		return nil
	}
	hardHiddenNames := make([]string, 0)
	for _, module := range access.GoAutoModules() {
		if module.PurchaserHardHidden {
			hardHiddenNames = append(hardHiddenNames, module.RouteName, module.RouteName+"Root")
		}
	}
	var count int64
	if err := db.Model(&models.SysMenu{}).
		Where("menu_id IN ? AND menu_name IN ?", menuIDs, hardHiddenNames).
		Count(&count).Error; err != nil {
		return err
	}
	if count > 0 {
		return errors.New("采购员角色不能配置 AI 规格匹配菜单")
	}
	return nil
}

func policiesForRole(roleKey string, menus []models.SysMenu) [][]string {
	policies := make([][]string, 0)
	seen := make(map[string]struct{})
	if roleKey == access.RolePurchaser {
		for _, permission := range access.PurchaserAPIs() {
			key := permission.Path + "\x00" + permission.Method
			if _, exists := seen[key]; exists {
				continue
			}
			seen[key] = struct{}{}
			policies = append(policies, []string{roleKey, permission.Path, permission.Method})
		}
		return policies
	}

	for _, menu := range menus {
		for _, api := range menu.SysApi {
			key := api.Path + "\x00" + api.Action
			if _, exists := seen[key]; exists {
				continue
			}
			seen[key] = struct{}{}
			policies = append(policies, []string{roleKey, api.Path, api.Action})
		}
	}
	return policies
}