package orbit_test

import (
	"context"
	"errors"
	orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestHealthContract(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != "GET" || r.Header.Get("Accept") != "application/json" {
			t.Error("incorrect request")
		}
		if r.URL.Path == "/version" {
			_, _ = w.Write([]byte(`{"version":"1.2.3","revision":"abc","built_at":"now","go_version":"go1.27.1","http_protocol_version":"1","worker_protocol_version":"1","event_protocol_version":"1","workflow_schema_version":1}`))
			return
		}
		if r.URL.Path == "/health/live" {
			_, _ = w.Write([]byte(`{"status":"alive"}`))
			return
		}
		w.WriteHeader(http.StatusServiceUnavailable)
		_, _ = w.Write([]byte(`{"secret":"must not appear in error"}`))
	}))
	defer server.Close()
	client, err := orbit.NewClient(server.URL, orbit.Options{})
	if err != nil {
		t.Fatal(err)
	}
	live, err := client.Liveness(context.Background())
	if err != nil || live.Status != "alive" {
		t.Fatalf("%+v %v", live, err)
	}
	info, err := client.Version(context.Background())
	if err != nil || info.Version != "1.2.3" || info.Revision != "abc" || info.WorkflowSchemaVersion != 1 {
		t.Fatalf("version=%+v err=%v", info, err)
	}
	_, err = client.Readiness(context.Background())
	var status *orbit.HTTPError
	if !errors.As(err, &status) || status.StatusCode != 503 || strings.Contains(err.Error(), "secret") {
		t.Fatalf("unsafe status error: %v", err)
	}
	ctx, cancel := context.WithCancel(context.Background())
	cancel()
	if _, err := client.Liveness(ctx); !errors.Is(err, context.Canceled) {
		t.Fatalf("context ignored: %v", err)
	}
}
func TestRejectsUnsafeURLsRedirectsAndOversizedResponses(t *testing.T) {
	for _, url := range []string{"", "file:///tmp/x", "http://user:pass@example.org", "http://example.org?token=x"} {
		if _, err := orbit.NewClient(url, orbit.Options{}); err == nil {
			t.Fatalf("accepted %q", url)
		}
	}
	for _, scenario := range []string{"redirect", "oversize"} {
		t.Run(scenario, func(t *testing.T) {
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				if scenario == "redirect" {
					http.Redirect(w, r, "/other", http.StatusFound)
					return
				}
				_, _ = w.Write([]byte(strings.Repeat("x", 17000)))
			}))
			defer server.Close()
			client, err := orbit.NewClient(server.URL, orbit.Options{})
			if err != nil {
				t.Fatal(err)
			}
			if _, err := client.Liveness(context.Background()); err == nil {
				t.Fatal("accepted unsafe response")
			}
		})
	}
}

func TestVersionRejectsHTTPErrorAndOversizedResponse(t *testing.T) {
	for _, scenario := range []string{"status", "oversize"} {
		t.Run(scenario, func(t *testing.T) {
			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				if r.URL.Path != "/version" {
					t.Fatalf("unexpected path %s", r.URL.Path)
				}
				if scenario == "status" {
					w.WriteHeader(http.StatusServiceUnavailable)
					_, _ = w.Write([]byte(`{"secret":"must not appear"}`))
					return
				}
				_, _ = w.Write([]byte(strings.Repeat("x", 17000)))
			}))
			defer server.Close()
			client, err := orbit.NewClient(server.URL, orbit.Options{})
			if err != nil {
				t.Fatal(err)
			}
			_, err = client.Version(context.Background())
			if err == nil || strings.Contains(err.Error(), "secret") {
				t.Fatalf("unsafe version error: %v", err)
			}
			if scenario == "status" {
				var status *orbit.HTTPError
				if !errors.As(err, &status) || status.StatusCode != http.StatusServiceUnavailable {
					t.Fatalf("status error=%v", err)
				}
			}
		})
	}
}