namespace PowderCoating.Core.Entities;

public class InventoryItem : BaseEntity
{
    public string SKU { get; set; } = string.Empty;
    public string Name { get; set; } = string.Empty;
    public string? Description { get; set; }

    // Category (lookup-based)
    public int? InventoryCategoryId { get; set; }  // Nullable during migration
    public virtual InventoryCategoryLookup? InventoryCategory { get; set; }

    // Legacy field for seed data (will be removed after migration)
    public string Category { get; set; } = string.Empty;

    // Powder-specific fields
    public string? ColorName { get; set; }
    public string? ColorCode { get; set; }
    public string? Finish { get; set; }
    public string? Manufacturer { get; set; }
    public string? ManufacturerPartNumber { get; set; }
    public decimal? CoverageSqFtPerLb { get; set; } // Square feet coverage per pound (default 30)
    public decimal? TransferEfficiency { get; set; } // Percentage of powder that sticks (default 65%)
    public decimal? CureTemperatureF { get; set; } // Required cure temperature in °F (recommended for oven scheduling)
    public int? CureTimeMinutes { get; set; } // Required hold time at cure temperature
    public string? ColorFamilies { get; set; } // Comma-separated primary color families e.g. "Green,Blue"
    public bool RequiresClearCoat { get; set; } // True if this powder requires a clear coat topcoat
    public string? SpecPageUrl { get; set; }    // Link to manufacturer's product/spec page

    // Sample Panel Tracking (coating category items only)
    public bool HasSamplePanel { get; set; } = false;

    // Inventory Management
    public decimal QuantityOnHand { get; set; }
    public string UnitOfMeasure { get; set; } = "lbs"; // lbs, kg, gallons, units, etc.
    public decimal ReorderPoint { get; set; }
    public decimal ReorderQuantity { get; set; }
    public decimal MinimumStock { get; set; }
    public decimal MaximumStock { get; set; }

    // Pricing
    public decimal UnitCost { get; set; }
    public decimal AverageCost { get; set; }
    public decimal LastPurchasePrice { get; set; }
    public DateTime? LastPurchaseDate { get; set; }

    // Vendor Information
    public int? PrimaryVendorId { get; set; }
    public string? VendorPartNumber { get; set; }

    // Additional fields
    public string? Location { get; set; }
    public string? Notes { get; set; }
    public bool IsActive { get; set; } = true;
    public DateTime? DiscontinuedDate { get; set; }

    // ── Financial Account Mapping ──────────────────────────────────────────

    /// <summary>
    /// Asset account where inventory value is tracked on the balance sheet (e.g., 1200 Inventory - Powder).
    /// When null, falls back to the default inventory asset account.
    /// </summary>
    public int? InventoryAccountId { get; set; }

    /// <summary>
    /// COGS account debited when this material is consumed on a job (e.g., 5100 Powder & Materials).
    /// When null, falls back to the default COGS account.
    /// </summary>
    public int? CogsAccountId { get; set; }

    // Relationships
    public virtual Vendor? PrimaryVendor { get; set; }
    public virtual Account? InventoryAccount { get; set; }
    public virtual Account? CogsAccount { get; set; }
    public virtual ICollection<InventoryTransaction> Transactions { get; set; } = new List<InventoryTransaction>();
}