package model

import (
	"context"
	"database/sql"
	"fmt"
	"github.com/zeromicro/go-zero/core/stores/cache"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
)

var _ DeductionsModel = (*customDeductionsModel)(nil)

type (
	// DeductionsModel is an interface to be customized, add more methods here,
	// and implement the added methods in customDeductionsModel.
	DeductionsModel interface {
		deductionsModel
		InsertDeductionsTrans(ctx context.Context, deductions *Deductions, session sqlx.Session) (sql.Result, error)
	}

	customDeductionsModel struct {
		*defaultDeductionsModel
	}
)

// NewDeductionsModel returns a model for the database table.
func NewDeductionsModel(conn sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) DeductionsModel {
	return &customDeductionsModel{
		defaultDeductionsModel: newDeductionsModel(conn, c, opts...),
	}
}
func (m *customDeductionsModel) InsertDeductionsTrans(ctx context.Context, deductions *Deductions, session sqlx.Session) (sql.Result, error) {

	query := fmt.Sprintf("INSERT INTO %s (%s) VALUES (?, ?, ?)", m.table, deductionsRowsExpectAutoSet)
	ret, err := session.ExecCtx(ctx, query, deductions.UserId, deductions.Amount, deductions.TransactionId)
	if err != nil {
		return nil, err
	}
	deductionsTransactionIdKey := fmt.Sprintf("%s%v", cacheDeductionsTransactionIdPrefix, deductions.TransactionId)
	// 2. 更新缓存，保证所有缓存操作成功
	cacheKeys := []string{deductionsTransactionIdKey}
	cacheErrors := make([]error, len(cacheKeys))

	cacheErrors[0] = m.DelCacheCtx(ctx, deductionsTransactionIdKey)
	// 3. 检查缓存操作是否全部成功
	for _, cacheErr := range cacheErrors {
		if cacheErr != nil {
			return nil, cacheErr // 返回第一个缓存更新失败的错误
		}
	}
	return ret, err
}