package distribution

import (
	"testing"

	"golang.org/x/crypto/bcrypt"
	"hfb_sys/backend/internal/model"
)

func TestSiteCRUD_UpdateSiteAndDomainUniqueness(t *testing.T) {
	db := distributionTestDB(t)
	repo := NewRepository(db)
	ctx := t.Context()

	_, err := repo.CreateSite(ctx, CreateSiteRequest{
		SiteCode: "site_crud_a",
		SiteName: "站点A",
		Domain:   "a.domain.test",
	})
	if err != nil {
		t.Fatalf("CreateSite A failed: %v", err)
	}

	siteB, err := repo.CreateSite(ctx, CreateSiteRequest{
		SiteCode: "site_crud_b",
		SiteName: "站点B",
		Domain:   "b.domain.test",
	})
	if err != nil {
		t.Fatalf("CreateSite B failed: %v", err)
	}

	// 1. 尝试将站点B的域名更新为已存在的站点A域名 -> 应该报错
	dupDomain := "a.domain.test"
	_, err = repo.UpdateSite(ctx, 0, siteB.ID, UpdateSiteRequest{
		Domain: &dupDomain,
	})
	if err == nil {
		t.Fatalf("expected error when updating to duplicate domain, got nil")
	}

	// 2. 正常更新站点B的名称、域名、状态为 disabled、展示主站账号为 false
	newName := "站点B更新后"
	newDomain := "b-new.domain.test"
	newStatus := "disabled"
	dispFalse := false
	updated, err := repo.UpdateSite(ctx, 0, siteB.ID, UpdateSiteRequest{
		SiteName:              &newName,
		Domain:                &newDomain,
		Status:                &newStatus,
		DisplayAccountEnabled: &dispFalse,
	})
	if err != nil {
		t.Fatalf("UpdateSite failed: %v", err)
	}
	if updated.SiteName != newName || updated.Domain != newDomain || updated.Status != "disabled" || updated.DisplayAccountEnabled != false {
		t.Fatalf("updated site values mismatch: %+v", updated)
	}
}

func TestSiteCRUD_DeleteSiteProtectionAndCascade(t *testing.T) {
	db := distributionTestDB(t)
	repo := NewRepository(db)
	ctx := t.Context()

	// 1. 使用 OnboardSite 创建一个完整的测试分销站（包含成员与管理员）
	onboardResp, err := repo.OnboardSite(ctx, OnboardSiteRequest{
		SiteCode:      "del_test_site",
		SiteName:      "待删除测试分销站",
		Domain:        "del.domain.test",
		AdminUsername: "del_test_admin",
		AdminPassword: "password123",
	})
	if err != nil {
		t.Fatalf("OnboardSite failed: %v", err)
	}
	siteID := onboardResp.Site.ID
	adminUserID := onboardResp.Member.AdminID

	// 2. 测试密码重置
	newPwd := "new_secret_pwd_666"
	if err := repo.ResetSiteAdminPassword(ctx, 0, siteID, newPwd); err != nil {
		t.Fatalf("ResetSiteAdminPassword failed: %v", err)
	}
	// 校验密码是否成功重置
	var adminUser model.AdminUser
	if err := db.First(&adminUser, adminUserID).Error; err != nil {
		t.Fatalf("failed to find admin user: %v", err)
	}
	if err := bcrypt.CompareHashAndPassword([]byte(adminUser.PasswordHash), []byte(newPwd)); err != nil {
		t.Fatalf("password hash does not match new password: %v", err)
	}

	// 3. 验证 ListSites 与 FindSite 能够正确携带管理员信息
	sites, err := repo.ListSites(ctx)
	if err != nil {
		t.Fatalf("ListSites failed: %v", err)
	}
	var foundSite *SiteDTO
	for i := range sites {
		if sites[i].ID == siteID {
			foundSite = &sites[i]
			break
		}
	}
	if foundSite == nil {
		t.Fatalf("site not found in ListSites")
	}
	if foundSite.AdminUsername != "del_test_admin" {
		t.Fatalf("expected admin_username del_test_admin, got %s", foundSite.AdminUsername)
	}

	// 4. 测试有订单时的删除保护
	// 创建一笔模拟关联订单
	dummyOrder := model.RentalOrder{
		OrderNo:            "ORD_DEL_TEST_001",
		RenterID:           999,
		AccountID:          888,
		DistributionSiteID: &siteID,
	}
	if err := db.Create(&dummyOrder).Error; err != nil {
		t.Fatalf("failed to create dummy order: %v", err)
	}

	err = repo.DeleteSite(ctx, 0, siteID)
	if err == nil {
		t.Fatalf("expected error when deleting site with orders, got nil")
	}

	// 删除此测试订单，继续测试级联删除
	if err := db.Delete(&dummyOrder).Error; err != nil {
		t.Fatalf("failed to remove dummy order: %v", err)
	}

	// 5. 测试无订单时的干净级联删除
	if err := repo.DeleteSite(ctx, 0, siteID); err != nil {
		t.Fatalf("DeleteSite failed: %v", err)
	}

	// 校验站点主体已删除
	var checkSite model.DistributionSite
	if err := db.First(&checkSite, siteID).Error; err == nil {
		t.Fatalf("site should be deleted from db")
	}

	// 校验专属管理员用户已同步清理
	var checkAdmin model.AdminUser
	if err := db.First(&checkAdmin, adminUserID).Error; err == nil {
		t.Fatalf("dedicated admin user should be deleted from db")
	}

	// 校验规则已清理
	var ruleCount int64
	db.Model(&model.DistributionRuleVersion{}).Where("site_id = ?", siteID).Count(&ruleCount)
	if ruleCount > 0 {
		t.Fatalf("expected 0 rules for deleted site, got %d", ruleCount)
	}
}