<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    public function up(): void
    {
        // OAuth Clients
        if (!Schema::hasTable('oauth_clients')) {
            Schema::create('oauth_clients', function (Blueprint $table) {
                $table->string('id', 255)->primary();
                $table->string('client_id', 255)->unique();
                $table->string('client_secret', 255)->nullable();
                $table->text('redirect_uris')->nullable();
                $table->text('scopes')->default('tenant:read tenant:write');
                $table->boolean('is_active')->default(true); // From add_is_active
                $table->foreignId('tenant_id')->nullable()->after('client_secret')->constrained('tenants')->nullOnDelete(); // From add_tenant_id
                $table->timestamp('created_at')->useCurrent();
                $table->timestamp('updated_at')->useCurrent()->useCurrentOnUpdate();
                $table->index('tenant_id');
            });
        } else {
            if (!Schema::hasColumn('oauth_clients', 'is_active')) {
                Schema::table('oauth_clients', function (Blueprint $table) {
                    $table->boolean('is_active')->default(true)->after('scopes');
                });
            }
            if (!Schema::hasColumn('oauth_clients', 'tenant_id')) {
                Schema::table('oauth_clients', function (Blueprint $table) {
                    $table->foreignId('tenant_id')->nullable()->after('client_secret')->constrained('tenants')->nullOnDelete();
                    $table->index('tenant_id');
                });
            }
        }

        // Refresh Tokens
        if (!Schema::hasTable('refresh_tokens')) {
            Schema::create('refresh_tokens', function (Blueprint $table) {
                $table->string('id', 255)->primary();
                $table->string('tenant_id', 255)->index();
                $table->string('client_id', 255)->nullable()->index(); // From add_client_id
                $table->string('token', 255)->unique()->index();
                $table->string('access_token', 255)->nullable();
                $table->timestamp('expires_at')->nullable();
                $table->text('scope')->nullable();
                $table->string('ip_address', 45)->nullable();
                $table->text('user_agent')->nullable();
                $table->timestamp('created_at')->useCurrent();
                $table->timestamp('revoked_at')->nullable();
                $table->index('expires_at');
            });
        } else {
            if (!Schema::hasColumn('refresh_tokens', 'client_id')) {
                Schema::table('refresh_tokens', function (Blueprint $table) {
                    $table->string('client_id', 255)->nullable()->after('tenant_id')->index();
                });
            }
        }

        // Tenant Tokens
        if (!Schema::hasTable('tenant_tokens')) {
            Schema::create('tenant_tokens', function (Blueprint $table) {
                $table->string('id', 255)->primary();
                $table->string('tenant_id', 255)->index();
                $table->string('jti', 255)->unique()->index();
                $table->string('token_type', 50)->index();
                $table->timestamp('expires_at');
                $table->timestamp('revoked_at')->nullable();
                $table->timestamp('created_at')->useCurrent();
                $table->index('expires_at');
            });
        }

        // OAuth Codes
        if (!Schema::hasTable('oauth_codes')) {
            Schema::create('oauth_codes', function (Blueprint $table) {
                $table->string('id', 255)->primary();
                $table->string('client_id', 255);
                $table->string('user_id', 255);
                $table->string('code', 255)->unique()->index();
                $table->string('code_challenge', 255);
                $table->string('state', 255)->nullable();
                $table->string('redirect_uri', 255)->nullable();
                $table->text('scope')->nullable();
                $table->timestamp('expires_at');
                $table->timestamp('created_at')->useCurrent();
                $table->index('expires_at');
                $table->foreign('client_id')->references('client_id')->on('oauth_clients')->onDelete('cascade');
            });
        }
    }

    public function down(): void
    {
        if (app()->environment('local', 'testing')) {
            if (Schema::hasTable('oauth_codes')) {
                Schema::table('oauth_codes', function (Blueprint $table) {
                    $table->dropForeign(['client_id']);
                });
                Schema::dropIfExists('oauth_codes');
            }
            if (Schema::hasColumn('refresh_tokens', 'client_id')) {
                Schema::table('refresh_tokens', function (Blueprint $table) {
                    $table->dropIndex(['client_id']);
                    $table->dropColumn('client_id');
                });
            }
            Schema::dropIfExists('refresh_tokens');
            Schema::dropIfExists('tenant_tokens');
            if (Schema::hasColumn('oauth_clients', 'tenant_id')) {
                Schema::table('oauth_clients', function (Blueprint $table) {
                    $table->dropForeign(['tenant_id']);
                    $table->dropColumn('tenant_id');
                });
            }
            if (Schema::hasColumn('oauth_clients', 'is_active')) {
                Schema::table('oauth_clients', function (Blueprint $table) {
                    $table->dropColumn('is_active');
                });
            }
            Schema::dropIfExists('oauth_clients');
        }
    }
};