package server

import (
	"encoding/json"
	"testing"

	"git.wntrmute.dev/mc/mcr/internal/db"
)

func TestAdminListAuditEvents(t *testing.T) {
	database := openAdminTestDB(t)
	router, _ := buildAdminRouter(t, database)

	// Seed some audit events.
	if err := database.WriteAuditEvent("login_ok", "user-1", "", "", "10.0.0.1", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}
	if err := database.WriteAuditEvent("manifest_pushed", "user-1", "myapp", "sha256:abc", "10.0.0.1",
		map[string]string{"tag": "latest"}); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}
	if err := database.WriteAuditEvent("login_ok", "user-2", "", "", "10.0.0.2", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}

	rr := adminReq(t, router, "GET", "/v1/audit", "")
	if rr.Code != 200 {
		t.Fatalf("status: got %d, want 200", rr.Code)
	}

	var events []db.AuditEvent
	if err := json.NewDecoder(rr.Body).Decode(&events); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if len(events) != 3 {
		t.Fatalf("event count: got %d, want 3", len(events))
	}
}

func TestAdminListAuditEventsWithFilter(t *testing.T) {
	database := openAdminTestDB(t)
	router, _ := buildAdminRouter(t, database)

	if err := database.WriteAuditEvent("login_ok", "user-1", "", "", "", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}
	if err := database.WriteAuditEvent("manifest_pushed", "user-1", "myapp", "", "", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}
	if err := database.WriteAuditEvent("login_ok", "user-2", "", "", "", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}

	// Filter by event_type.
	rr := adminReq(t, router, "GET", "/v1/audit?event_type=login_ok", "")
	if rr.Code != 200 {
		t.Fatalf("status: got %d, want 200", rr.Code)
	}

	var events []db.AuditEvent
	if err := json.NewDecoder(rr.Body).Decode(&events); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if len(events) != 2 {
		t.Fatalf("event count: got %d, want 2", len(events))
	}
	for _, e := range events {
		if e.EventType != "login_ok" {
			t.Fatalf("unexpected event type: %q", e.EventType)
		}
	}
}

func TestAdminListAuditEventsFilterByActor(t *testing.T) {
	database := openAdminTestDB(t)
	router, _ := buildAdminRouter(t, database)

	if err := database.WriteAuditEvent("login_ok", "actor-a", "", "", "", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}
	if err := database.WriteAuditEvent("login_ok", "actor-b", "", "", "", nil); err != nil {
		t.Fatalf("WriteAuditEvent: %v", err)
	}

	rr := adminReq(t, router, "GET", "/v1/audit?actor_id=actor-a", "")
	if rr.Code != 200 {
		t.Fatalf("status: got %d, want 200", rr.Code)
	}

	var events []db.AuditEvent
	if err := json.NewDecoder(rr.Body).Decode(&events); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if len(events) != 1 {
		t.Fatalf("event count: got %d, want 1", len(events))
	}
	if events[0].ActorID != "actor-a" {
		t.Fatalf("actor_id: got %q, want %q", events[0].ActorID, "actor-a")
	}
}

func TestAdminListAuditEventsPagination(t *testing.T) {
	database := openAdminTestDB(t)
	router, _ := buildAdminRouter(t, database)

	for range 5 {
		if err := database.WriteAuditEvent("login_ok", "user-1", "", "", "", nil); err != nil {
			t.Fatalf("WriteAuditEvent: %v", err)
		}
	}

	rr := adminReq(t, router, "GET", "/v1/audit?n=2&offset=0", "")
	if rr.Code != 200 {
		t.Fatalf("status: got %d, want 200", rr.Code)
	}

	var events []db.AuditEvent
	if err := json.NewDecoder(rr.Body).Decode(&events); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if len(events) != 2 {
		t.Fatalf("event count: got %d, want 2", len(events))
	}
}

func TestAdminListAuditEventsEmpty(t *testing.T) {
	database := openAdminTestDB(t)
	router, _ := buildAdminRouter(t, database)

	rr := adminReq(t, router, "GET", "/v1/audit", "")
	if rr.Code != 200 {
		t.Fatalf("status: got %d, want 200", rr.Code)
	}

	var events []db.AuditEvent
	if err := json.NewDecoder(rr.Body).Decode(&events); err != nil {
		t.Fatalf("decode: %v", err)
	}
	if len(events) != 0 {
		t.Fatalf("event count: got %d, want 0", len(events))
	}
}

func TestAdminListAuditEventsNonAdmin(t *testing.T) {
	database := openAdminTestDB(t)
	router := buildNonAdminRouter(t, database)

	rr := adminReq(t, router, "GET", "/v1/audit", "")
	if rr.Code != 403 {
		t.Fatalf("status: got %d, want 403", rr.Code)
	}
}