package model

import (
	"context"
	"errors"
	"fmt"
	"github.com/patrickmn/go-cache"
	"github.com/spf13/cast"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"time"
)

var _ NhPromoteBindModel = (*customNhPromoteBindModel)(nil)

type (
	// NhPromoteBindModel is an interface to be customized, add more methods here,
	// and implement the added methods in customNhPromoteBindModel.
	NhPromoteBindModel interface {
		nhPromoteBindModel
		withSession(session sqlx.Session) NhPromoteBindModel
		FindRequirePushUser(ctx context.Context, shareUid uint) ([]NhPromoteBind, error)
		UpdatePushUser(ctx context.Context, id uint) error
		UpdatePushRole(ctx context.Context, id uint) error
		UserInviteCount(ctx context.Context, uid uint) (int64, error)
	}

	customNhPromoteBindModel struct {
		*defaultNhPromoteBindModel
		userInviteCountCache *cache.Cache
	}
)

// NewNhPromoteBindModel returns a model for the database table.
func NewNhPromoteBindModel(conn sqlx.SqlConn) NhPromoteBindModel {
	return &customNhPromoteBindModel{
		defaultNhPromoteBindModel: newNhPromoteBindModel(conn),
		userInviteCountCache:      cache.New(time.Minute, time.Second*65),
	}
}

func (m *customNhPromoteBindModel) withSession(session sqlx.Session) NhPromoteBindModel {
	return NewNhPromoteBindModel(sqlx.NewSqlConnFromSession(session))
}

func (m *customNhPromoteBindModel) FindRequirePushUser(ctx context.Context, shareUid uint) ([]NhPromoteBind, error) {
	query := fmt.Sprintf("select %s from %s where `share_uid` = ? and `is_push_user` = 0 limit 100", nhPromoteBindRows, m.table)
	var resp []NhPromoteBind
	err := m.conn.QueryRowsCtx(ctx, &resp, query, shareUid)
	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
		return nil, err
	}
	return resp, nil
}

func (m *customNhPromoteBindModel) UpdatePushUser(ctx context.Context, id uint) error {
	update := fmt.Sprintf("update %s set `is_push_user` = 1 where `id` = ? and `is_push_user` = 0", m.table)
	result, err := m.conn.ExecCtx(ctx, update, id)
	if err != nil {
		return err
	}
	row, err := result.RowsAffected()
	if err != nil {
		return err
	}
	if row == 0 {
		return ErrNoRowUpdate
	}
	return nil
}

func (m *customNhPromoteBindModel) UpdatePushRole(ctx context.Context, id uint) error {
	update := fmt.Sprintf("update %s set `is_push_role` = 1 where `id` = ? and `is_push_role` = 0", m.table)
	result, err := m.conn.ExecCtx(ctx, update, id)
	if err != nil {
		return err
	}
	row, err := result.RowsAffected()
	if err != nil {
		return err
	}
	if row == 0 {
		return ErrNoRowUpdate
	}
	return nil
}

func (m *customNhPromoteBindModel) UserInviteCount(ctx context.Context, uid uint) (int64, error) {
	key := cast.ToString(uid)
	v, ok := m.userInviteCountCache.Get(key)
	if ok {
		return v.(int64), nil
	}
	query := fmt.Sprintf("SELECT COUNT(*) as count FROM %s pb JOIN `nh_twitter` tw ON pb.invited_uid = tw.uid WHERE pb.share_uid = ?", m.table)
	var count int64
	err := m.conn.QueryRowCtx(ctx, &count, query, uid)
	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
		return 0, err
	}
	m.userInviteCountCache.SetDefault(key, count)
	return count, nil
}