package packagepkg

import (
	"context"
	"strconv"

	"gorm.io/gorm"

	"github.com/break/junhong_cmp_fiber/internal/infrastructure/audit"
	"github.com/break/junhong_cmp_fiber/internal/model"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/break/junhong_cmp_fiber/pkg/errors"
)

// SetAccessAudit 注入套餐商品统一审计 Writer。
func (s *Service) SetAccessAudit(db *gorm.DB, writer *audit.Writer) {
	s.db = db
	s.auditWriter = writer
}

func (s *Service) appendPackageAudit(ctx context.Context, tx *gorm.DB, actionCode, summary string, pkg *model.Package, beforeData, afterData map[string]any) error {
	if s.auditWriter == nil || s.db == nil {
		return errors.New(errors.CodeInvalidStatus, "套餐商品统一审计接缝未配置")
	}
	resources := []audit.ResourceInput{
		audit.PackageResource(pkg, constants.AuditResourceRelationPrimary, constants.AuditResourceRolePackageTarget, beforeData, afterData),
	}
	if pkg.SeriesID > 0 {
		var series model.PackageSeries
		if err := tx.WithContext(ctx).Unscoped().Where("id = ?", pkg.SeriesID).First(&series).Error; err != nil {
			return errors.Wrap(errors.CodeDatabaseError, err, "查询套餐系列审计快照失败")
		}
		resources = append(resources, audit.PackageSeriesResource(&series, constants.AuditResourceRelationReference, constants.AuditResourceRolePackageSeries, nil, nil))
	}
	return s.auditWriter.Append(ctx, tx, audit.AppendInput{
		ActionCode: actionCode, Summary: summary, ScopeType: constants.AuditScopePlatform,
		Result: constants.AuditResultSuccess, Resources: resources,
	})
}

func (s *Service) appendAllocationAudit(ctx context.Context, tx *gorm.DB, actionCode, summary string, allocation *model.ShopPackageAllocation, pkg *model.Package, beforeData, afterData map[string]any) error {
	if s.auditWriter == nil || s.db == nil {
		return errors.New(errors.CodeInvalidStatus, "店铺套餐统一审计接缝未配置")
	}
	resources := []audit.ResourceInput{
		audit.ShopPackageAllocationResource(allocation, constants.AuditResourceRelationPrimary, constants.AuditResourceRoleShopPackageAllocation, beforeData, afterData),
		audit.PackageResource(pkg, constants.AuditResourceRelationReference, constants.AuditResourceRolePackageTarget, nil, nil),
	}
	var shop model.Shop
	if err := tx.WithContext(ctx).Unscoped().Where("id = ?", allocation.ShopID).First(&shop).Error; err != nil {
		return errors.Wrap(errors.CodeDatabaseError, err, "查询店铺套餐审计快照失败")
	}
	resources = append(resources, audit.ShopResource(&shop, constants.AuditResourceRelationReference, constants.AuditResourceRolePackageConfigShop))
	return s.auditWriter.Append(ctx, tx, audit.AppendInput{
		ActionCode: actionCode, Summary: summary, ScopeType: constants.AuditScopeShop,
		ScopeID: allocationShopID(allocation), Result: constants.AuditResultSuccess, Resources: resources,
	})
}

func (s *Service) recordPackageFailure(ctx context.Context, actionCode, summary string, pkg *model.Package, beforeData map[string]any, businessErr error) {
	if pkg == nil {
		return
	}
	s.auditWriter.RecordFailure(ctx, s.db, audit.AppendInput{
		ActionCode: actionCode, Summary: summary, ScopeType: constants.AuditScopePlatform,
		Resources: []audit.ResourceInput{audit.PackageResource(
			pkg, constants.AuditResourceRelationPrimary, constants.AuditResourceRolePackageTarget, beforeData, nil,
		)},
	}, businessErr)
}

func (s *Service) recordAllocationFailure(ctx context.Context, actionCode, summary string, allocation *model.ShopPackageAllocation, pkg *model.Package, beforeData map[string]any, businessErr error) {
	if allocation == nil || pkg == nil {
		return
	}
	shop := &model.Shop{Model: gorm.Model{ID: allocation.ShopID}}
	s.auditWriter.RecordFailure(ctx, s.db, audit.AppendInput{
		ActionCode: actionCode, Summary: summary, ScopeType: constants.AuditScopeShop,
		ScopeID: allocationShopID(allocation), Resources: []audit.ResourceInput{
			audit.ShopPackageAllocationResource(allocation, constants.AuditResourceRelationPrimary, constants.AuditResourceRoleShopPackageAllocation, beforeData, nil),
			audit.PackageResource(pkg, constants.AuditResourceRelationReference, constants.AuditResourceRolePackageTarget, nil, nil),
			audit.ShopResource(shop, constants.AuditResourceRelationReference, constants.AuditResourceRolePackageConfigShop),
		},
	}, businessErr)
}

func allocationShopID(allocation *model.ShopPackageAllocation) string {
	if allocation == nil {
		return ""
	}
	return uintString(allocation.ShopID)
}

func uintString(value uint) string {
	return strconv.FormatUint(uint64(value), 10)
}

func packageData(pkg *model.Package) map[string]any {
	if pkg == nil {
		return nil
	}
	return map[string]any{
		"package_name": pkg.PackageName, "series_id": pkg.SeriesID, "package_type": pkg.PackageType,
		"duration_months": pkg.DurationMonths, "duration_days": pkg.DurationDays,
		"real_data_mb": pkg.RealDataMB, "virtual_data_mb": pkg.VirtualDataMB,
		"enable_virtual_data": pkg.EnableVirtualData, "cost_price": pkg.CostPrice,
		"suggested_retail_price": pkg.SuggestedRetailPrice, "price_config_status": pkg.PriceConfigStatus,
		"is_gift": pkg.IsGift, "status": pkg.Status, "shelf_status": pkg.ShelfStatus,
		"calendar_type": pkg.CalendarType, "data_reset_cycle": pkg.DataResetCycle, "expiry_base": pkg.ExpiryBase,
	}
}