package model

import (
	"context"
	"database/sql"
	"fmt"
	"time"

	"github.com/zeromicro/go-zero/core/stores/sqlx"
)

var _ ProShareLinkModel = (*customProShareLinkModel)(nil)

type (
	ProShareLinkModel interface {
		proShareLinkModel
		FindByShortCode(ctx context.Context, shortCode string) (*ProShareLink, error)
		FindByLinkId(ctx context.Context, linkId string) (*ProShareLink, error)
		FindActiveLinkByPlan(ctx context.Context, planId string) (*ProShareLink, error)
		UpdateClick(ctx context.Context, shortCode string) error
		UpdateStatus(ctx context.Context, shortCode string, status int64, rejectReason string) error
	}

	customProShareLinkModel struct {
		*defaultProShareLinkModel
	}
)

func NewProShareLinkModel(conn sqlx.SqlConn) ProShareLinkModel {
	return &customProShareLinkModel{
		defaultProShareLinkModel: newProShareLinkModel(conn),
	}
}

func (m *customProShareLinkModel) FindByShortCode(ctx context.Context, shortCode string) (*ProShareLink, error) {
	var resp ProShareLink
	query := fmt.Sprintf("SELECT %s FROM %s WHERE short_code = ? LIMIT 1", proShareLinkRows, m.table)
	if err := m.conn.QueryRowCtx(ctx, &resp, query, shortCode); err != nil {
		return nil, err
	}
	return &resp, nil
}

func (m *customProShareLinkModel) FindByLinkId(ctx context.Context, linkId string) (*ProShareLink, error) {
	var resp ProShareLink
	query := fmt.Sprintf("SELECT %s FROM %s WHERE link_id = ? LIMIT 1", proShareLinkRows, m.table)
	if err := m.conn.QueryRowCtx(ctx, &resp, query, linkId); err != nil {
		return nil, err
	}
	return &resp, nil
}

func (m *customProShareLinkModel) FindActiveLinkByPlan(ctx context.Context, planId string) (*ProShareLink, error) {
	var resp ProShareLink
	query := fmt.Sprintf("SELECT %s FROM %s WHERE plan_id = ? AND status IN (0, 1) AND expires_at > NOW() ORDER BY created_at DESC LIMIT 1",
		proShareLinkRows, m.table)
	if err := m.conn.QueryRowCtx(ctx, &resp, query, planId); err != nil {
		return nil, err
	}
	return &resp, nil
}

func (m *customProShareLinkModel) UpdateClick(ctx context.Context, shortCode string) error {
	query := fmt.Sprintf("UPDATE %s SET status = 1, click_count = click_count + 1, clicked_at = ? WHERE short_code = ? AND status = 0",
		m.table)
	_, err := m.conn.ExecCtx(ctx, query, sql.NullTime{Time: time.Now(), Valid: true}, shortCode)
	return err
}

func (m *customProShareLinkModel) UpdateStatus(ctx context.Context, shortCode string, status int64, rejectReason string) error {
	query := fmt.Sprintf("UPDATE %s SET status = ?, responded_at = ?, reject_reason = ? WHERE short_code = ?", m.table)
	_, err := m.conn.ExecCtx(ctx, query, status, sql.NullTime{Time: time.Now(), Valid: true}, rejectReason, shortCode)
	return err
}