package service

import (
	"context"
	"errors"
	"strings"
	"time"

	"affiliate_dash/internal/model"
)

const rockSupportSearchRequired = "请输入包ID、上游编号、提取码、兑换码、工单号、商户单号或角色 ID 后再查询"

// ListSupportBoundTokens 平台客服只读查询绑定中的 Token。
// 固定只返回 status=bound；search 必填，避免客服页面在未输入条件时拉取全量数据。
func (s *RockService) ListSupportBoundTokens(ctx context.Context, page, pageSize int, search string) ([]model.RockToken, int64, error) {
	search = strings.TrimSpace(search)
	if search == "" {
		return nil, 0, errors.New(rockSupportSearchRequired)
	}
	if page <= 0 {
		page = 1
	}
	if pageSize <= 0 {
		pageSize = 20
	}
	if pageSize > 100 {
		pageSize = 100
	}

	cfg, err := s.GetConfig(ctx)
	if err != nil {
		return nil, 0, err
	}
	warnDays, dangerDays, boundWarnDays := rockOverdueThresholds(cfg)
	now := time.Now()

	db := s.db.WithContext(ctx).Model(&model.RockToken{}).Where("status = ?", model.RockStatusBound)
	term := "%" + search + "%"
	db = db.Where(
		"upstream_token_id = ? OR upstream_token_id LIKE ? OR redeem_code LIKE ? OR assigned_order_no LIKE ? OR expected_uid LIKE ? OR actual_role_name LIKE ? OR actual_role_id LIKE ? OR remark LIKE ? OR CAST(package_id AS TEXT) LIKE ? OR token LIKE ? OR CAST(id AS TEXT) = ? OR assigned_order_no IN (SELECT order_no FROM fulfillment_orders WHERE client_order_no LIKE ?)",
		search, term, term, term, term, term, term, term, term, term, search, term,
	)

	var total int64
	if err := db.Count(&total).Error; err != nil {
		return nil, 0, err
	}
	var tokens []model.RockToken
	if err := db.Order("id DESC").
		Offset((page - 1) * pageSize).
		Limit(pageSize).
		Find(&tokens).Error; err != nil {
		return nil, 0, err
	}
	applyRockTokenOverdueFlags(tokens, now, warnDays, dangerDays, boundWarnDays)
	s.prepareRockTokenList(ctx, tokens)
	return tokens, total, nil
}

// ListSupportTokenStatusLogs 平台客服只读查询状态历史；只允许查看绑定中的 Token。
func (s *RockService) ListSupportTokenStatusLogs(ctx context.Context, tokenID uint) ([]model.RockTokenStatusLog, error) {
	var count int64
	if err := s.db.WithContext(ctx).Model(&model.RockToken{}).
		Where("id = ? AND status = ?", tokenID, model.RockStatusBound).
		Count(&count).Error; err != nil {
		return nil, err
	}
	if count == 0 {
		return nil, errors.New("Token 不存在或无权查看")
	}
	return s.ListTokenStatusLogs(ctx, tokenID)
}