package model

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

var _ EnterpriseAuthModel = (*customEnterpriseAuthModel)(nil)

type (
	// EnterpriseAuthModel is an interface to be customized, add more methods here,
	// and implement the added methods in customEnterpriseAuthModel.
	EnterpriseAuthModel interface {
		enterpriseAuthModel
		FindLatestByUserId(ctx context.Context, userId int64) (*EnterpriseAuth, error)
		TransCtx(ctx context.Context, fn func(ctx context.Context, session sqlx.Session) error) error
		InsertEnterpriseAuthTrans(ctx context.Context, auth *EnterpriseAuth, session sqlx.Session) (sql.Result, error)
		UpdateEnterpriseAuthTrans(ctx context.Context, auth *EnterpriseAuth, session sqlx.Session) (sql.Result, error)
		FindPendingList(ctx context.Context, page, pageSize int64) ([]EnterpriseAuth, int64, error)
	}

	customEnterpriseAuthModel struct {
		*defaultEnterpriseAuthModel
	}
)

// NewEnterpriseAuthModel returns a model for the database table.
func NewEnterpriseAuthModel(conn sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) EnterpriseAuthModel {
	return &customEnterpriseAuthModel{
		defaultEnterpriseAuthModel: newEnterpriseAuthModel(conn, c, opts...),
	}
}
func (m *defaultEnterpriseAuthModel) FindLatestByUserId(ctx context.Context, userId int64) (*EnterpriseAuth, error) {
	query := fmt.Sprintf("SELECT * FROM %s WHERE user_id = ? ORDER BY created_at DESC LIMIT 1", m.table)
	var resp EnterpriseAuth
	err := m.QueryRowsNoCacheCtx(ctx, &resp, query, userId)
	switch err {
	case nil:
		return &resp, nil
	case sql.ErrNoRows:
		return nil, sql.ErrNoRows
	default:
		return nil, err
	}
}

func (m *defaultEnterpriseAuthModel) TransCtx(ctx context.Context, fn func(ctx context.Context, session sqlx.Session) error) error {
	// 使用带 ctx 的事务处理
	err := m.TransactCtx(ctx, func(ctx context.Context, session sqlx.Session) error {
		return fn(ctx, session)
	})
	return err
}

func (m *defaultEnterpriseAuthModel) InsertEnterpriseAuthTrans(ctx context.Context, auth *EnterpriseAuth, session sqlx.Session) (sql.Result, error) {
	enterpriseAuthIdKey := fmt.Sprintf("%s%v", cacheEnterpriseAuthIdPrefix, auth.Id)

	query := fmt.Sprintf("INSERT INTO %s (user_id, enterprise_name, credit_code, legal_person, business_license, enterprise_contact, auth_status) VALUES (?, ?, ?, ?, ?, ?, ?)", m.table)
	ret, err := session.ExecCtx(ctx, query, auth.UserId, auth.EnterpriseName, auth.CreditCode, auth.LegalPerson, auth.BusinessLicense, auth.EnterpriseContact, auth.AuthStatus)
	if err == nil {
		err = m.DelCacheCtx(ctx, enterpriseAuthIdKey)
		if err != nil {
			return nil, err
		}
	}
	return ret, err
}
func (m *defaultEnterpriseAuthModel) UpdateEnterpriseAuthTrans(ctx context.Context, auth *EnterpriseAuth, session sqlx.Session) (sql.Result, error) {
	enterpriseAuthIdKey := fmt.Sprintf("%s%v", cacheEnterpriseAuthIdPrefix, auth.Id)
	query := fmt.Sprintf("UPDATE %s SET %s WHERE `id` = ?", m.table, enterpriseAuthRowsWithPlaceHolder)
	ret, err := session.ExecCtx(ctx, query, auth.UserId, auth.EnterpriseName, auth.CreditCode, auth.LegalPerson, auth.BusinessLicense, auth.EnterpriseContact, auth.AuthStatus, auth.Id)
	if err == nil {
		err = m.DelCacheCtx(ctx, enterpriseAuthIdKey)
		if err != nil {
			return nil, err
		}
	}
	return ret, err
}
func (m *defaultEnterpriseAuthModel) FindPendingList(ctx context.Context, page, pageSize int64) ([]EnterpriseAuth, int64, error) {
	offset := (page - 1) * pageSize
	var enterprises []EnterpriseAuth

	query := fmt.Sprintf("SELECT * FROM %s WHERE auth_status = 'pending' ORDER BY created_at DESC LIMIT ?,?", m.table)
	err := m.QueryRowsNoCacheCtx(ctx, &enterprises, query, offset, pageSize)
	if err != nil {
		return nil, 0, err
	}

	// 查询总数量
	var total int64
	countQuery := fmt.Sprintf("SELECT COUNT(*) FROM %s WHERE auth_status = 'pending'", m.table)
	err = m.QueryRowNoCacheCtx(ctx, &total, countQuery)
	if err != nil {
		return nil, 0, err
	}

	return enterprises, total, nil
}