/*
 * Copyright (C) 2026 Fluxer Contributors
 *
 * This file is part of Fluxer.
 *
 * Fluxer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Fluxer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
 */

package integration

import (
	"fmt"
	"net/http"
	"testing"
)

// TestCrossGuildRoleAssignmentForbidden ensures roles cannot be applied across guild boundaries
func TestCrossGuildRoleAssignmentForbidden(t *testing.T) {
	client := newTestClient(t)
	owner := createTestAccount(t, client)
	member := createTestAccount(t, client)

	guildA := createGuild(t, client, owner.Token, "Role Source Guild")
	guildAID := parseSnowflake(t, guildA.ID)

	guildB := createGuild(t, client, owner.Token, "Role Target Guild")
	guildBID := parseSnowflake(t, guildB.ID)
	channelB := parseSnowflake(t, guildB.SystemChannel)

	resp, err := client.postJSONWithAuth(fmt.Sprintf("/guilds/%d/roles", guildAID), map[string]any{"name": "foreign-role"}, owner.Token)
	if err != nil {
		t.Fatalf("failed to create role in guild A: %v", err)
	}
	assertStatus(t, resp, http.StatusOK)
	var role struct {
		ID string `json:"id"`
	}
	decodeJSONResponse(t, resp, &role)
	roleID := role.ID

	inviteB := createChannelInvite(t, client, owner.Token, channelB)
	resp, err = client.postJSONWithAuth(fmt.Sprintf("/invites/%s", inviteB.Code), nil, member.Token)
	if err != nil {
		t.Fatalf("failed to join guild B: %v", err)
	}
	assertStatus(t, resp, http.StatusOK)
	resp.Body.Close()

	resp, err = client.putWithAuth(fmt.Sprintf("/guilds/%d/members/%s/roles/%s", guildBID, member.UserID, roleID), owner.Token)
	if err != nil {
		t.Fatalf("failed to attempt cross-guild role add: %v", err)
	}
	if resp.StatusCode == http.StatusNoContent {
		t.Fatalf("expected cross-guild role assignment to be rejected, got 204")
	}
	resp.Body.Close()

	resp, err = client.postJSONWithAuth(fmt.Sprintf("/guilds/%d/roles", guildBID), map[string]any{"name": "local-role"}, owner.Token)
	if err != nil {
		t.Fatalf("failed to create local role: %v", err)
	}
	assertStatus(t, resp, http.StatusOK)
	var localRole struct {
		ID string `json:"id"`
	}
	decodeJSONResponse(t, resp, &localRole)

	resp, err = client.putWithAuth(fmt.Sprintf("/guilds/%d/members/%s/roles/%s", guildBID, member.UserID, localRole.ID), owner.Token)
	if err != nil {
		t.Fatalf("failed to add local role: %v", err)
	}
	assertStatus(t, resp, http.StatusNoContent)
	resp.Body.Close()

	resp, err = client.delete(fmt.Sprintf("/guilds/%d/members/%s/roles/%s", guildBID, member.UserID, roleID), owner.Token)
	if err != nil {
		t.Fatalf("failed to attempt cross-guild role removal: %v", err)
	}
	if resp.StatusCode == http.StatusNoContent {
		t.Fatalf("expected cross-guild role removal to be rejected, got 204")
	}
	resp.Body.Close()
}