package server

import (
	"encoding/json"
	"io"
	"log/slog"
	"net/http"
	"net/http/httptest"
	"os"
	"testing"

	"gitea.meghsakha.com/platform/tenant-registry/internal/config"
)

func newTestServer(t *testing.T) *httptest.Server {
	t.Helper()
	cfg := &config.Config{Env: "dev", Addr: ":0"}
	h := NewRouter(cfg, slog.New(slog.NewTextHandler(os.Stderr, nil)))
	return httptest.NewServer(h)
}

func TestHealthz(t *testing.T) {
	srv := newTestServer(t)
	defer srv.Close()

	resp, err := http.Get(srv.URL + "/healthz")
	if err != nil {
		t.Fatal(err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("got %d, want 200", resp.StatusCode)
	}
}

func TestTenantBySlug_acme(t *testing.T) {
	srv := newTestServer(t)
	defer srv.Close()

	resp, err := http.Get(srv.URL + "/v1/tenants/by-slug/acme")
	if err != nil {
		t.Fatal(err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		t.Fatalf("got %d, want 200; body=%s", resp.StatusCode, body)
	}
	var payload map[string]any
	if err := json.NewDecoder(resp.Body).Decode(&payload); err != nil {
		t.Fatal(err)
	}
	if payload["slug"] != "acme" {
		t.Fatalf("expected slug=acme, got %v", payload["slug"])
	}
	if payload["status"] != "active" {
		t.Fatalf("expected status=active, got %v", payload["status"])
	}
}

func TestTenantBySlug_unknown(t *testing.T) {
	srv := newTestServer(t)
	defer srv.Close()

	resp, err := http.Get(srv.URL + "/v1/tenants/by-slug/nope")
	if err != nil {
		t.Fatal(err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusNotFound {
		t.Fatalf("got %d, want 404", resp.StatusCode)
	}
}