package service

import (
	"errors"
	"testing"

	"cmautobuy/admin/repository"
)

const (
	pddURLA = "https://mobile.yangkeduo.com/goods.html?goods_id=737116531267"
	pddURLB = "https://mobile.yangkeduo.com/goods.html?goods_id=937122477375"
)

func TestAssociateShopeePdd_新建并重复复用(t *testing.T) {
	db := newTestDB(t)
	seedShopeeProduct(t, db, "1001", "商品一")

	for i := 0; i < 2; i++ {
		got, err := AssociateShopeePdd(db, "1001", pddURLA, false)
		if err != nil {
			t.Fatalf("第 %d 次关联失败: %v", i+1, err)
		}
		if got != "737116531267" {
			t.Fatalf("goods_id = %q", got)
		}
	}
	var count int
	db.QueryRow(`SELECT COUNT(*) FROM pdd_products WHERE goods_id = ?`, "737116531267").Scan(&count)
	if count != 1 {
		t.Fatalf("同一 PDD 商品建了 %d 条，想要 1", count)
	}
}

func TestAssociateShopeePdd_无效链接不写任何数据(t *testing.T) {
	db := newTestDB(t)
	seedShopeeProduct(t, db, "1001", "商品一")
	if _, err := AssociateShopeePdd(db, "1001", "https://p.pinduoduo.com/short", false); err == nil {
		t.Fatal("短链接应被拒绝")
	}
	var pddCount int
	db.QueryRow(`SELECT COUNT(*) FROM pdd_products`).Scan(&pddCount)
	product, _ := repository.GetShopeeProductByGoodsID(db, "1001")
	if pddCount != 0 || product.PddGoodsID != "" {
		t.Fatalf("失败后仍写入：pdd=%d, link=%q", pddCount, product.PddGoodsID)
	}
}

func TestAssociateShopeePdd_换商品必须确认且旧档案保留(t *testing.T) {
	db := newTestDB(t)
	seedShopeeProduct(t, db, "1001", "商品一")
	if _, err := AssociateShopeePdd(db, "1001", pddURLA, false); err != nil {
		t.Fatal(err)
	}
	if _, err := AssociateShopeePdd(db, "1001", pddURLB, false); !errors.Is(err, ErrPddAssociationReplaceRequired) {
		t.Fatalf("未确认换品错误 = %v", err)
	}
	product, _ := repository.GetShopeeProductByGoodsID(db, "1001")
	if product.PddGoodsID != "737116531267" {
		t.Fatalf("未确认时关联被改成 %q", product.PddGoodsID)
	}
	if _, err := AssociateShopeePdd(db, "1001", pddURLB, true); err != nil {
		t.Fatal(err)
	}
	product, _ = repository.GetShopeeProductByGoodsID(db, "1001")
	if product.PddGoodsID != "937122477375" {
		t.Fatalf("确认后关联 = %q", product.PddGoodsID)
	}
	old, _ := repository.GetPddProductByGoodsID(db, "737116531267")
	if old == nil {
		t.Fatal("换品不应删除旧 PDD 档案")
	}
}

func TestAssociateShopeePdd_软删除商品可复活(t *testing.T) {
	db := newTestDB(t)
	seedShopeeProduct(t, db, "1001", "商品一")
	repository.EnsurePddProduct(db, "737116531267", pddURLA)
	if _, err := repository.SoftDeletePddProducts(db, []string{"737116531267"}); err != nil {
		t.Fatal(err)
	}
	if _, err := AssociateShopeePdd(db, "1001", pddURLA, false); err != nil {
		t.Fatal(err)
	}
	p, _ := repository.GetPddProductByGoodsID(db, "737116531267")
	if p == nil || p.IsDeleted() {
		t.Fatal("关联应复活软删除的 PDD 商品")
	}
}

func TestCreateShopeePddCollectTask_按当前关联创建(t *testing.T) {
	db := newTestDB(t)
	seedShopeeProduct(t, db, "1001", "商品一")
	AssociateShopeePdd(db, "1001", pddURLA, false)
	result, err := CreateShopeePddCollectTask(db, "1001")
	if err != nil || result.Created != 1 {
		t.Fatalf("创建结果 = %+v, err=%v", result, err)
	}
	_, _, _, ok := collectTaskOf(t, db, "737116531267")
	if !ok {
		t.Fatal("没有创建采集任务")
	}
}