Initial commit: Sistema de comisiones y gastos personales

app/Models/Month.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+#[Fillable(['user_id', 'name', 'year', 'status'])]
+class Month extends Model
+{
+    use HasFactory;
+
+    protected $table = 'months';
+
+    /**
+     * Los atributos que son asignables en masa.
+     *
+     * @var array<int, string>
+     */
+    protected $fillable = [
+        'user_id',
+        'name',
+        'year',
+        'status',
+    ];
+
+    /**
+     * Los atributos que deben ser convertidos.
+     *
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'year' => 'integer',
+        ];
+    }
+
+    /**
+     * Relación con usuario
+     */
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    /**
+     * Relación con ventas diarias
+     */
+    public function dailySales(): HasMany
+    {
+        return $this->hasMany(DailySale::class);
+    }
+
+    /**
+     * Relación con gastos
+     */
+    public function expenses(): HasMany
+    {
+        return $this->hasMany(Expense::class);
+    }
+
+    /**
+     * Obtener el nombre del mes con formato
+     */
+    public function getDisplayNameAttribute(): string
+    {
+        return $this->name . ' ' . $this->year;
+    }
+
+    /**
+     * Calcular ventas totales del mes
+     */
+    public function getTotalUserSalesAttribute(): float
+    {
+        return $this->dailySales()->sum('user_sales');
+    }
+
+    /**
+     * Calcular ventas del sistema
+     */
+    public function getTotalSystemSalesAttribute(): float
+    {
+        return $this->dailySales()->sum('system_sales');
+    }
+
+    /**
+     * Calcular gastos totales del mes
+     */
+    public function getTotalExpensesAttribute(): float
+    {
+        return $this->expenses()->sum('amount');
+    }
+}