<?php

namespace App\Models;

use Database\Factories\ProjectRevisionFactory;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class ProjectRevision extends Model
{
    /** @use HasFactory<ProjectRevisionFactory> */
    use HasFactory;

    public const STATUS_DRAFT = 'draft';

    public const STATUS_APPROVED = 'approved';

    public const STATUS_SUPERSEDED = 'superseded';

    protected $fillable = [
        'project_id', 'revision_number', 'change_notes', 'status', 'created_by',
        'approved_by', 'approved_at', 'fusion_project_id', 'fusion_document_id', 'fusion_version',
    ];

    protected function casts(): array
    {
        return [
            'approved_at' => 'datetime',
        ];
    }

    public function project(): BelongsTo
    {
        return $this->belongsTo(Project::class);
    }

    public function creator(): BelongsTo
    {
        return $this->belongsTo(User::class, 'created_by');
    }

    public function approver(): BelongsTo
    {
        return $this->belongsTo(User::class, 'approved_by');
    }

    public function files(): HasMany
    {
        return $this->hasMany(ProjectFile::class, 'revision_id');
    }

    public function costSnapshots(): HasMany
    {
        return $this->hasMany(ProjectCostSnapshot::class, 'revision_id');
    }

    public function isApproved(): bool
    {
        return $this->status === self::STATUS_APPROVED;
    }
}