<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\MorphMany;


class RepairOrder extends Model
{
    use HasFactory, SoftDeletes;

    protected $fillable = [
        'order_number',
        'vehicle_id',
        'priority',
        'status',
        'reported_at',
        'assigned_at',
        'started_at',
        'completed_at',
        'issue_description',
        'diagnosis',
        'resolution',
        'mileage_at_repair',
        'labor_hours',
        'labor_cost',
        'parts_cost',
        'total_cost',
    ];

    protected $casts = [
        'reported_at' => 'datetime',
        'assigned_at' => 'datetime',
        'started_at' => 'datetime',
        'completed_at' => 'datetime',
        'labor_hours' => 'decimal:2',
        'labor_cost' => 'decimal:2',
        'parts_cost' => 'decimal:2',
        'total_cost' => 'decimal:2',
    ];

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

    public function technicians(): BelongsToMany
    {
        return $this->belongsToMany(Technician::class)
            ->withPivot('is_lead')
            ->withTimestamps();
    }

    public function parts(): BelongsToMany
    {
        return $this->belongsToMany(Part::class)
            ->withPivot('quantity_used', 'unit_cost')
            ->withTimestamps();
    }

    public function repairTasks(): HasMany
    {
        return $this->hasMany(RepairTask::class);
    }

    public function documents(): MorphMany
    {
        return $this->morphMany(Document::class, 'documentable');
    }

    public function getLeadTechnician()
    {
        return $this->technicians()->wherePivot('is_lead', true)->first();
    }

    public function calculateCosts()
    {
        // Calculate parts cost
        $this->parts_cost = $this->parts()
            ->withPivot('quantity_used', 'unit_cost')
            ->get()
            ->sum(function ($part) {
                return $part->pivot->quantity_used * $part->pivot->unit_cost;
            });

        // Calculate labor cost based on tasks
        $this->labor_hours = $this->repairTasks()->sum('actual_hours');
        $this->labor_cost = $this->labor_hours * config('workshop.hourly_rate', 85.00);

        // Calculate total cost
        $this->total_cost = $this->parts_cost + $this->labor_cost;

        $this->save();
    }
}