package integration

import (
	"bytes"
	"database/sql"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"github.com/gin-gonic/gin"

	"cmautobuy/admin/config"
	"cmautobuy/admin/model"
	"cmautobuy/admin/repository"
	_ "modernc.org/sqlite"
)

func TestRequireCatalogToken(t *testing.T) {
	gin.SetMode(gin.TestMode)
	const token = "0123456789abcdef0123456789abcdef"
	for _, tc := range []struct {
		name, header string
		cfg          config.CatalogIntegrationConfig
		want         int
	}{
		{"未启用", "", config.CatalogIntegrationConfig{}, http.StatusServiceUnavailable},
		{"缺少", "", config.CatalogIntegrationConfig{Source: "script", Token: token}, http.StatusUnauthorized},
		{"错误", "Bearer wrong", config.CatalogIntegrationConfig{Source: "script", Token: token}, http.StatusUnauthorized},
		{"正确", "Bearer " + token, config.CatalogIntegrationConfig{Source: "script", Token: token}, http.StatusNoContent},
	} {
		t.Run(tc.name, func(t *testing.T) {
			r := gin.New()
			r.GET("/protected", RequireCatalogToken(tc.cfg), func(c *gin.Context) {
				if integrationSource(c) != tc.cfg.Source {
					t.Fatalf("source=%q", integrationSource(c))
				}
				c.Status(http.StatusNoContent)
			})
			req := httptest.NewRequest(http.MethodGet, "/protected", nil)
			req.Header.Set("Authorization", tc.header)
			resp := httptest.NewRecorder()
			r.ServeHTTP(resp, req)
			if resp.Code != tc.want {
				t.Fatalf("status=%d body=%s", resp.Code, resp.Body.String())
			}
			if strings.Contains(resp.Body.String(), token) || strings.Contains(resp.Body.String(), "wrong") {
				t.Fatal("响应泄露接口凭据")
			}
		})
	}
}

func TestCatalogBatchAPI_按批次查询摘要(t *testing.T) {
	db, err := sql.Open("sqlite", ":memory:")
	if err != nil {
		t.Fatal(err)
	}
	defer db.Close()
	_, err = db.Exec(`CREATE TABLE catalog_import_runs(source TEXT,batch_id TEXT,request_hash TEXT,status TEXT,request_count INTEGER,conflict_count INTEGER,observed_at TEXT,update_policy TEXT DEFAULT 'fill_missing',last_request_at TEXT,last_conflict_at TEXT,shopee_created INTEGER DEFAULT 0,shopee_updated INTEGER DEFAULT 0,sku_created INTEGER DEFAULT 0,sku_updated INTEGER DEFAULT 0,sku_filled INTEGER DEFAULT 0,sku_same_source_updated INTEGER DEFAULT 0,sku_skipped INTEGER DEFAULT 0,sku_manual_skipped INTEGER DEFAULT 0,sku_stale_skipped INTEGER DEFAULT 0,pdd_created INTEGER DEFAULT 0,pdd_updated INTEGER DEFAULT 0,association_created INTEGER DEFAULT 0,association_unchanged INTEGER DEFAULT 0,failure_count INTEGER DEFAULT 0,error_summary TEXT,response_body TEXT,created_at TEXT,finished_at TEXT,PRIMARY KEY(source,batch_id))`)
	if err != nil {
		t.Fatal(err)
	}
	run := model.CatalogImportRun{Source: "script", BatchID: "B-1", RequestHash: "abc", Status: model.CatalogImportSucceeded, LastRequestAt: model.NowISO(), CreatedAt: model.NowISO()}
	if err := repository.InsertCatalogImportRun(db, run); err != nil {
		t.Fatal(err)
	}
	const token = "0123456789abcdef0123456789abcdef"
	r := gin.New()
	Register(r, db, config.CatalogIntegrationConfig{Source: "script", Token: token})
	req := httptest.NewRequest(http.MethodGet, "/api/v1/integrations/catalog/batches/B-1", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	resp := httptest.NewRecorder()
	r.ServeHTTP(resp, req)
	if resp.Code != 200 || !strings.Contains(resp.Body.String(), `"batch_id":"B-1"`) {
		t.Fatalf("status=%d body=%s", resp.Code, resp.Body.String())
	}
	if !strings.Contains(resp.Body.String(), `"sku_filled":0`) || !strings.Contains(resp.Body.String(), `"update_policy"`) {
		t.Fatal("批次摘要缺少更新策略统计")
	}
	if strings.Contains(resp.Body.String(), "request_hash") {
		t.Fatal("查询响应不应暴露请求哈希")
	}
}

func TestCatalogBatchAPI_鉴权JSON与体积限制(t *testing.T) {
	gin.SetMode(gin.TestMode)
	const token = "0123456789abcdef0123456789abcdef"
	r := gin.New()
	Register(r, nil, config.CatalogIntegrationConfig{Source: "script", Token: token})

	for _, tc := range []struct {
		name, auth string
		body       []byte
		want       int
	}{
		{"无鉴权", "", []byte(`{}`), http.StatusUnauthorized},
		{"坏JSON", "Bearer " + token, []byte(`{"schema_version":`), http.StatusBadRequest},
		{"超限", "Bearer " + token, bytes.Repeat([]byte("x"), catalogMaxBody+1), http.StatusRequestEntityTooLarge},
	} {
		t.Run(tc.name, func(t *testing.T) {
			req := httptest.NewRequest(http.MethodPost, "/api/v1/integrations/catalog/batches", bytes.NewReader(tc.body))
			req.Header.Set("Authorization", tc.auth)
			resp := httptest.NewRecorder()
			r.ServeHTTP(resp, req)
			if resp.Code != tc.want {
				t.Fatalf("status=%d body=%s", resp.Code, resp.Body.String())
			}
			if !strings.Contains(resp.Header().Get("Content-Type"), "application/json") {
				t.Fatalf("错误响应必须是 JSON：%s", resp.Header())
			}
		})
	}
}