package app

import (
	"context"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestWordPressPublisherCategoriesUsesRESTAPIAndBasicAuth(t *testing.T) {
	const username = "editor@example.com"
	const applicationPassword = "abcd efgh ijkl mnop"
	var gotAuth string
	var gotPath string
	var gotQuery string

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		gotAuth = r.Header.Get("Authorization")
		gotPath = r.URL.Path
		gotQuery = r.URL.RawQuery
		w.Header().Set("Content-Type", "application/json")
		w.Header().Set("X-WP-TotalPages", "1")
		_, _ = w.Write([]byte(`[
			{"id": 12, "name": "案例", "slug": "case", "parent": 0, "count": 3, "link": "https://example.test/category/case/"}
		]`))
	}))
	defer server.Close()

	publisher := newWordPressPublisher(server.Client())
	items, raw, err := publisher.Categories(context.Background(), enterpriseSiteCredential{
		SiteURL: server.URL,
		AppID:   username,
		Secret:  applicationPassword,
	})
	if err != nil {
		t.Fatalf("sync wordpress categories: %v", err)
	}

	wantAuth := "Basic " + base64.StdEncoding.EncodeToString([]byte(username+":"+applicationPassword))
	if gotAuth != wantAuth {
		t.Fatalf("authorization = %q, want %q", gotAuth, wantAuth)
	}
	if gotPath != "/index.php" {
		t.Fatalf("path = %q, want wordpress categories endpoint", gotPath)
	}
	if !strings.Contains(gotQuery, "rest_route=%2Fwp%2Fv2%2Fcategories") ||
		!strings.Contains(gotQuery, "per_page=100") ||
		!strings.Contains(gotQuery, "hide_empty=false") {
		t.Fatalf("query = %q, want wordpress rest_route, per_page and hide_empty", gotQuery)
	}
	if len(items) != 1 || items[0].RemoteID != "12" || items[0].Name != "案例" {
		t.Fatalf("items = %#v, want parsed wordpress category", items)
	}
	if len(raw) != 1 || raw[0]["slug"] != "case" {
		t.Fatalf("raw = %#v, want preserved category payload", raw)
	}
}

func TestWordPressPublisherPingReturnsSafeRawSummary(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		switch {
		case strings.Contains(r.URL.RawQuery, "rest_route=%2Fwp%2Fv2%2Fusers%2Fme"):
			_, _ = w.Write([]byte(`{"id": 7, "name": "admin", "email": "admin@example.test", "capabilities": {"administrator": true}}`))
		default:
			_, _ = w.Write([]byte(`{"name": "Example", "home": "https://example.test", "routes": {"/wp/v2/users/me": {"sensitive": true}}}`))
		}
	}))
	defer server.Close()

	publisher := newWordPressPublisher(server.Client())
	capability, raw, err := publisher.Ping(context.Background(), enterpriseSiteCredential{
		SiteURL: server.URL,
		AppID:   "editor",
		Secret:  "application-password",
	})
	if err != nil {
		t.Fatalf("ping wordpress: %v", err)
	}
	if capability.SiteName == nil || *capability.SiteName != "Example" || !capability.APIAuth {
		t.Fatalf("capability = %#v, want sanitized wordpress capability", capability)
	}
	if raw["api_auth"] != true || raw["authenticated"] != true {
		t.Fatalf("raw = %#v, want safe auth summary", raw)
	}
	if _, ok := raw["routes"]; ok {
		t.Fatalf("raw leaked wordpress index routes: %#v", raw)
	}
	if user, ok := raw["authenticated_user"].(map[string]any); ok || user != nil {
		t.Fatalf("raw leaked authenticated user body: %#v", raw)
	}
	if strings.Contains(fmt.Sprintf("%v", raw), "admin@example.test") {
		t.Fatalf("raw leaked authenticated user email: %#v", raw)
	}
}

func TestWordPressPublisherPublishCreatesPost(t *testing.T) {
	var gotPath string
	var gotQuery string
	var gotPayload map[string]any

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		gotPath = r.URL.Path
		gotQuery = r.URL.RawQuery
		if r.Method != http.MethodPost {
			t.Fatalf("method = %s, want POST", r.Method)
		}
		if _, _, ok := r.BasicAuth(); !ok {
			t.Fatalf("missing basic auth")
		}
		if err := json.NewDecoder(r.Body).Decode(&gotPayload); err != nil {
			t.Fatalf("decode request body: %v", err)
		}
		w.Header().Set("Content-Type", "application/json")
		_, _ = w.Write([]byte(`{"id": 88, "link": "https://example.test/post/88/", "status": "publish"}`))
	}))
	defer server.Close()

	publisher := newWordPressPublisher(server.Client())
	result, raw, err := publisher.Publish(context.Background(), enterpriseSiteCredential{
		SiteURL: server.URL,
		AppID:   "editor",
		Secret:  "application-password",
	}, cmsPublishRequest{
		Title:       "测试标题",
		ContentHTML: "<p>正文</p>",
		CategoryID:  "12",
		Description: "摘要",
		PublishType: "draft",
	})
	if err != nil {
		t.Fatalf("publish wordpress post: %v", err)
	}

	if gotPath != "/index.php" {
		t.Fatalf("path = %q, want wordpress posts endpoint", gotPath)
	}
	if !strings.Contains(gotQuery, "rest_route=%2Fwp%2Fv2%2Fposts") {
		t.Fatalf("query = %q, want wordpress posts rest_route", gotQuery)
	}
	if gotPayload == nil {
		t.Fatalf("missing request payload")
	}
	if gotPayload["title"] != "测试标题" || gotPayload["content"] != "<p>正文</p>" || gotPayload["status"] != "draft" {
		t.Fatalf("payload = %#v, want wordpress post body", gotPayload)
	}
	categories, ok := gotPayload["categories"].([]any)
	if !ok || len(categories) != 1 {
		t.Fatalf("categories = %#v, want [12]", gotPayload["categories"])
	}
	categoryID, ok := categories[0].(float64)
	if !ok || categoryID != 12 {
		t.Fatalf("category id = %#v, want 12", categories[0])
	}
	if result.RemoteID != "88" || result.URL != "https://example.test/post/88/" {
		t.Fatalf("result = %#v, want wordpress post result", result)
	}
	if raw["id"] != int64(88) {
		t.Fatalf("raw = %#v, want saved wordpress response", raw)
	}
}