<?php

namespace Laravel\Ai\Models;

use Illuminate\Database\Eloquent\Attributes\WithoutIncrementing;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

#[WithoutIncrementing]
class ConversationMessage extends Model
{
    /**
     * The data type of the primary key ID.
     *
     * @var string
     */
    protected $keyType = 'string';

    /**
     * The attributes that aren't mass assignable.
     *
     * @var array<int, string>
     */
    protected $guarded = [];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'attachments' => 'array',
        'tool_calls' => 'array',
        'tool_results' => 'array',
        'usage' => 'array',
        'meta' => 'array',
        'approval_state' => 'array',
    ];

    /**
     * Get the conversation that owns the message.
     *
     * @return BelongsTo<Conversation, $this>
     */
    public function conversation(): BelongsTo
    {
        return $this->belongsTo(Conversation::class, 'conversation_id');
    }

    /**
     * Get the table associated with the model.
     */
    #[\Override]
    public function getTable(): string
    {
        return config('ai.conversations.tables.messages', 'agent_conversation_messages');
    }

    /**
     * Get the database connection for the model.
     */
    #[\Override]
    public function getConnectionName(): ?string
    {
        return config('ai.conversations.connection');
    }
}