<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class AlterActivityLogsTable extends Migration
{
    public function up()
    {
        // Drop the old table
        $this->db->disableForeignKeyChecks();
        $this->forge->dropTable('activity_logs', true);
        $this->db->enableForeignKeyChecks();

        // Create the new table with the specified structure
        $this->forge->addField([
            'id'                  => [
                'type'           => 'BIGINT',
                'auto_increment' => true,
            ],
            'ip'                  => [
                'type'       => 'VARCHAR',
                'constraint' => 45,
                'null'       => true,
            ],
            'action'              => [
                'type'       => 'VARCHAR',
                'constraint' => 100,
                'null'       => false,
            ],
            'description'         => [
                'type' => 'TEXT',
                'null' => true,
            ],
            'activity_user_id'    => [
                'type'       => 'BIGINT',
                'null'       => true,
            ],
            'activity_user_type'  => [
                'type'       => 'ENUM',
                'constraint' => ['admin', 'doctor', 'patient'],
                'null'       => true,
            ],
            'target_user_id'      => [
                'type'       => 'BIGINT',
                'null'       => true,
            ],
            'target_user_type'    => [
                'type'       => 'ENUM',
                'constraint' => ['admin', 'doctor', 'patient'],
                'null'       => true,
            ],
            'activity_page'       => [
                'type'       => 'VARCHAR',
                'constraint' => 255,
                'null'       => true,
            ],
            'activity_at'         => [
                'type' => 'DATETIME',
                'null' => false,
            ],
        ]);

        $this->forge->addKey('id', true);
        $this->forge->addKey('activity_user_id');
        $this->forge->addKey('target_user_id');
        $this->forge->addKey('action');
        $this->forge->addKey('activity_at');
        $this->forge->addKey('ip');

        $this->forge->createTable('activity_logs');
    }

    public function down()
    {
        // Revert to original table structure if rollback
        $this->db->disableForeignKeyChecks();
        $this->forge->dropTable('activity_logs', true);
        $this->db->enableForeignKeyChecks();

        // Recreate original structure
        $this->forge->addField([
            'id'                  => [
                'type'           => 'BIGINT',
                'auto_increment' => true,
            ],
            'actor_user_id'       => [
                'type'       => 'BIGINT',
                'null'       => true,
            ],
            'actor_role'          => [
                'type'       => 'VARCHAR',
                'constraint' => 50,
                'null'       => true,
            ],
            'action'              => [
                'type'       => 'VARCHAR',
                'constraint' => 100,
            ],
            'description'         => [
                'type' => 'TEXT',
                'null' => true,
            ],
            'target_type'         => [
                'type'       => 'VARCHAR',
                'constraint' => 100,
                'null'       => true,
            ],
            'target_id'           => [
                'type'       => 'BIGINT',
                'null'       => true,
            ],
            'ip_address'          => [
                'type'       => 'VARCHAR',
                'constraint' => 45,
                'null'       => true,
            ],
            'user_agent'          => [
                'type'       => 'TEXT',
                'null'       => true,
            ],
            'created_at'          => [
                'type' => 'DATETIME',
                'null' => false,
            ],
        ]);

        $this->forge->addKey('id', true);
        $this->forge->createTable('activity_logs');
    }
}