package api

import (
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"booklib/internal/config"
)

func testCfg() *config.Config {
	return &config.Config{Addr: ":8080", JWTSecret: []byte("s3cret"), ScanInterval: time.Minute, UploadMaxMB: 200,
		TrustedProxies: []string{"172.16.0.0/12"}} // 与 prod 默认一致: 只有 compose 网段内代理才可信
}

func TestHealthz(t *testing.T) {
	r := NewRouter(testCfg(), nil, nil, nil, nil, nil, nil, nil, nil, nil)
	req := httptest.NewRequest(http.MethodGet, "/api/healthz", nil)
	w := httptest.NewRecorder()
	r.ServeHTTP(w, req)
	if w.Code != http.StatusOK {
		t.Fatalf("healthz = %d, want 200", w.Code)
	}
}

// TestRouterContract 钉死全量路由表(Task 27):增删改任何路由都会使此测试失败,
// 必须显式更新——路由即对外契约。
func TestRouterContract(t *testing.T) {
	r := NewRouter(testCfg(), nil, nil, nil, nil, nil, nil, nil, nil, nil)
	want := map[string]bool{
		"GET /api/healthz":                    true,
		"POST /api/auth/login":                true,
		"GET /api/auth/me":                    true,
		"GET /api/users":                      true,
		"POST /api/users":                     true,
		"DELETE /api/users/:id":               true,
		"GET /api/libraries":                  true,
		"POST /api/libraries":                 true,
		"POST /api/libraries/:id/scan":        true,
		"POST /api/libraries/:id/upload":      true,
		"POST /api/libraries/:id/upload/init": true,
		"GET /api/uploads/:uid":               true,
		"POST /api/uploads/:uid/complete":     true,
		"PUT /api/uploads/:uid/parts/:index":  true,
		"GET /api/books":                      true,
		"GET /api/books/:id":                  true,
		"DELETE /api/books/:id":               true,
		"GET /api/books/:id/cover":            true,
		"GET /api/books/:id/file":             true,
		"GET /api/books/:id/pages":            true,
		"GET /api/books/:id/pages/:n":         true,
		"PUT /api/books/:id/progress":         true,
		"GET /api/progress":                   true,
		"GET /api/books/:id/bookmarks":        true,
		"POST /api/books/:id/bookmarks":       true,
		"PATCH /api/bookmarks/:id":            true,
		"DELETE /api/bookmarks/:id":           true,
	}
	got := map[string]bool{}
	for _, rt := range r.Routes() {
		key := rt.Method + " " + rt.Path
		if got[key] {
			t.Errorf("duplicate route %s", key)
		}
		got[key] = true
	}
	for k := range want {
		if !got[k] {
			t.Errorf("missing route %s", k)
		}
	}
	for k := range got {
		if !want[k] {
			t.Errorf("unexpected route %s", k)
		}
	}
}