<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use App\Traits\LogsActivity;

class Issue extends Model
{
    use SoftDeletes, LogsActivity;

    const STATUSES   = ['open', 'in_review', 'resolved', 'closed'];
    const PRIORITIES = ['low', 'medium', 'high', 'critical'];
    const TYPES      = ['defect', 'safety', 'quality', 'documentation', 'other'];

    protected $fillable = [
        'project_id', 'feature_id', 'inspection_id',
        'title', 'description', 'status', 'priority', 'type',
        'reported_by', 'assigned_to', 'resolved_at', 'resolution_notes',
        'uuid', 'client_updated_at',
    ];

    protected $casts = ['resolved_at' => 'datetime'];

    public function project()    { return $this->belongsTo(Project::class); }
    public function feature()    { return $this->belongsTo(Feature::class); }
    public function inspection() { return $this->belongsTo(Inspection::class); }
    public function reporter()   { return $this->belongsTo(User::class, 'reported_by'); }
    public function assignee()   { return $this->belongsTo(User::class, 'assigned_to'); }
    public function media()      { return $this->morphMany(Media::class, 'mediable'); }
    public function tasks()      { return $this->hasMany(IssueTask::class)->orderBy('order')->orderBy('id'); }
    public function comments()   { return $this->hasMany(IssueComment::class)->orderBy('created_at'); }

    public function scopeOpen($q)     { return $q->where('status', 'open'); }
    public function scopeCritical($q) { return $q->where('priority', 'critical'); }

    /** Resolution progress derived from the checklist: done tasks / total. */
    public function getProgressAttribute(): int
    {
        $total = $this->tasks->count();
        if ($total === 0) {
            return in_array($this->status, ['resolved', 'closed'], true) ? 100 : 0;
        }
        return (int) round($this->tasks->where('is_done', true)->count() / $total * 100);
    }

    /** True when there is at least one task and all of them are done. */
    public function getTasksCompleteAttribute(): bool
    {
        return $this->tasks->count() > 0 && $this->tasks->every(fn ($t) => $t->is_done);
    }

    public function getPriorityColorAttribute(): string
    {
        return match($this->priority) {
            'low'      => '#6b7280',
            'medium'   => '#f59e0b',
            'high'     => '#ef4444',
            'critical' => '#7c3aed',
            default    => '#6b7280',
        };
    }

    public function getStatusColorAttribute(): string
    {
        return match($this->status) {
            'open'      => '#ef4444',
            'in_review' => '#f59e0b',
            'resolved'  => '#10b981',
            'closed'    => '#6b7280',
            default     => '#6b7280',
        };
    }

    /** Human label (Spanish) for each issue type. */
    public static function typeLabels(): array
    {
        return [
            'defect'        => 'Defecto',
            'safety'        => 'Seguridad',
            'quality'       => 'Calidad',
            'documentation' => 'Documentación',
            'other'         => 'Otro',
        ];
    }

    public function getTypeLabelAttribute(): string
    {
        return self::typeLabels()[$this->type] ?? ucfirst((string) $this->type);
    }

    public function getTypeColorAttribute(): string
    {
        return match($this->type) {
            'defect'        => '#ef4444',
            'safety'        => '#f97316',
            'quality'       => '#0ea5e9',
            'documentation' => '#8b5cf6',
            default         => '#6b7280',
        };
    }
}