package service

import (
	"encoding/json"
	"strings"
	"testing"
	"time"

	"cmautobuy/admin/model"
	"cmautobuy/admin/repository"
)

func TestUpdateShopeeSKUManual_保存并保留身份字段(t *testing.T) {
	db := newCatalogTestDB(t)
	actor := &model.User{UserID: "USER-1", Role: model.RolePurchaser, Status: model.UserActive}
	goodsID, recordID := "S-EDIT", "REC-EDIT"
	nowText := "2026-08-12T00:00:00Z"
	if _, err := db.Exec(`INSERT INTO shopee_products(goods_id,title,source,created_at,updated_at) VALUES(?,?,'api',?,?)`, goodsID, "测试商品", nowText, nowText); err != nil {
		t.Fatal(err)
	}
	if _, err := db.Exec(`INSERT INTO shopee_skus(sku_id,shopee_sku_id,goods_id,spec_raw,spec_key,color,size,advice,parse_ok,sku_code,is_manual,source,field_sources,field_observed_at,source_observed_at,created_at,updated_at)
		VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`, recordID, "REAL-SKU-1", goodsID, "旧黑色,M【建议50公斤】", "稳定规格键",
		"旧黑色", "M", "旧建议", 0, "CODE-1", 0, "partner",
		`{"color":"partner","size":"partner","advice":"partner","sku_code":"partner"}`,
		`{"color":"2026-08-12T00:00:00Z","size":"2026-08-12T00:00:00Z","advice":"2026-08-12T00:00:00Z","sku_code":"2026-08-12T00:00:00Z"}`,
		nowText, nowText, nowText); err != nil {
		t.Fatal(err)
	}
	updatedAt := time.Date(2026, 8, 13, 3, 4, 5, 0, time.UTC)
	if err := UpdateShopeeSKUManual(db, actor, goodsID, recordID, " 新黑色 ", " L ", "", updatedAt); err != nil {
		t.Fatal(err)
	}
	var shopeeSKU, specRaw, specKey, color, size, advice, skuCode, source, sourcesRaw, timesRaw, storedAt string
	var parseOK, isManual int
	if err := db.QueryRow(`SELECT shopee_sku_id,spec_raw,spec_key,color,size,COALESCE(advice,''),parse_ok,sku_code,is_manual,source,field_sources,field_observed_at,updated_at FROM shopee_skus WHERE sku_id=?`, recordID).
		Scan(&shopeeSKU, &specRaw, &specKey, &color, &size, &advice, &parseOK, &skuCode, &isManual, &source, &sourcesRaw, &timesRaw, &storedAt); err != nil {
		t.Fatal(err)
	}
	if color != "新黑色" || size != "L" || advice != "" || parseOK != 1 {
		t.Fatalf("人工字段未正确保存：color=%q size=%q advice=%q parse=%d", color, size, advice, parseOK)
	}
	if shopeeSKU != "REAL-SKU-1" || specRaw != "旧黑色,M【建议50公斤】" || specKey != "稳定规格键" || skuCode != "CODE-1" || isManual != 0 || source != "partner" {
		t.Fatalf("不可变身份被修改：sku=%q raw=%q key=%q code=%q manual=%d source=%q", shopeeSKU, specRaw, specKey, skuCode, isManual, source)
	}
	var sources, times map[string]string
	if err := json.Unmarshal([]byte(sourcesRaw), &sources); err != nil {
		t.Fatal(err)
	}
	if err := json.Unmarshal([]byte(timesRaw), &times); err != nil {
		t.Fatal(err)
	}
	for _, field := range []string{"color", "size", "advice"} {
		if sources[field] != "manual" || times[field] != updatedAt.Format(model.TimeLayout) {
			t.Fatalf("%s 的人工来源错误：sources=%v times=%v", field, sources, times)
		}
	}
	if sources["sku_code"] != "partner" || storedAt != updatedAt.Format(model.TimeLayout) {
		t.Fatalf("未编辑字段来源或更新时间错误：sources=%v updated=%q", sources, storedAt)
	}

	for _, policy := range []string{"fill_missing", "overwrite_same_source"} {
		outcome, err := repository.UpsertCatalogShopeeSKU(db, repository.CatalogShopeeSKUInput{
			RecordID: "IGNORED", ShopeeSKUID: "REAL-SKU-1", GoodsID: goodsID,
			SpecRaw: specRaw, SpecKey: specKey, Color: "导入黑色", Size: "XL", Advice: "导入重新填入的建议",
			ParseOK: true, SKUCode: "CODE-2", Source: "partner", ObservedAt: "2026-08-14T00:00:00Z",
			Now: "2026-08-14T00:00:00Z", UpdatePolicy: policy,
		})
		if err != nil {
			t.Fatalf("%s 导入失败：%v", policy, err)
		}
		if outcome != repository.CatalogSKUFilled && outcome != repository.CatalogSKUSkipped && outcome != repository.CatalogSKUSameSourceUpdated {
			t.Fatalf("%s 返回意外结果：%s", policy, outcome)
		}
	}
	if err := db.QueryRow(`SELECT color,size,COALESCE(advice,'') FROM shopee_skus WHERE sku_id=?`, recordID).Scan(&color, &size, &advice); err != nil {
		t.Fatal(err)
	}
	if color != "新黑色" || size != "L" || advice != "" {
		t.Fatalf("人工字段被后续导入覆盖：%q/%q/%q", color, size, advice)
	}
}

func TestUpdateShopeeSKUManual_拒绝无效输入且不改数据(t *testing.T) {
	cases := []struct {
		name              string
		actor             *model.User
		goodsID, recordID string
		color, size       string
	}{
		{"未登录", nil, "S-EDIT", "REC-EDIT", "黑色", "M"},
		{"停用账号", &model.User{Status: model.UserDisabled}, "S-EDIT", "REC-EDIT", "黑色", "M"},
		{"规格不存在", &model.User{Status: model.UserActive}, "S-EDIT", "NOT-FOUND", "黑色", "M"},
		{"跨商品", &model.User{Status: model.UserActive}, "S-OTHER", "REC-EDIT", "黑色", "M"},
		{"颜色为空", &model.User{Status: model.UserActive}, "S-EDIT", "REC-EDIT", " ", "M"},
		{"尺码为空", &model.User{Status: model.UserActive}, "S-EDIT", "REC-EDIT", "黑色", " "},
		{"颜色过长", &model.User{Status: model.UserActive}, "S-EDIT", "REC-EDIT", strings.Repeat("色", 501), "M"},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			db := newCatalogTestDB(t)
			now := "2026-08-12T00:00:00Z"
			if _, err := db.Exec(`INSERT INTO shopee_products(goods_id,title,source,created_at,updated_at) VALUES('S-EDIT','测试','api',?,?)`, now, now); err != nil {
				t.Fatal(err)
			}
			if _, err := db.Exec(`INSERT INTO shopee_skus(sku_id,goods_id,spec_raw,spec_key,color,size,parse_ok,is_manual,source,field_sources,field_observed_at,created_at,updated_at)
				VALUES('REC-EDIT','S-EDIT','黑色,M','黑色,M','旧色','旧码',1,0,'partner','{}','{}',?,?)`, now, now); err != nil {
				t.Fatal(err)
			}
			err := UpdateShopeeSKUManual(db, tc.actor, tc.goodsID, tc.recordID, tc.color, tc.size, "建议", time.Now())
			if err == nil {
				t.Fatal("期望拒绝无效输入")
			}
			var color, size string
			if err := db.QueryRow(`SELECT color,size FROM shopee_skus WHERE sku_id='REC-EDIT'`).Scan(&color, &size); err != nil {
				t.Fatal(err)
			}
			if color != "旧色" || size != "旧码" {
				t.Fatalf("失败后发生部分更新：%q/%q", color, size)
			}
		})
	}
}