using PowderCoating.Core.Enums;

namespace PowderCoating.Core.Entities;

public class Vendor : BaseEntity
{
    public string CompanyName { get; set; } = string.Empty;
    public string? ContactName { get; set; }
    public string? Email { get; set; }
    public string? Phone { get; set; }
    public string? Address { get; set; }
    public string? City { get; set; }
    public string? State { get; set; }
    public string? ZipCode { get; set; }
    public string? Country { get; set; } = "USA";

    public string? Website { get; set; }

    // Business Information
    public string? AccountNumber { get; set; }
    public string? TaxId { get; set; }
    public string? PaymentTerms { get; set; }
    public decimal? CreditLimit { get; set; }

    public string? Notes { get; set; }
    public bool IsActive { get; set; } = true;
    public bool IsPreferred { get; set; } = false;

    // Accounts Payable tracking
    /// <summary>Running AP balance: increases with new bills, decreases with payments.</summary>
    public decimal CurrentBalance { get; set; } = 0;
    /// <summary>Balance owed at go-live (for migrating existing vendors).</summary>
    public decimal OpeningBalance { get; set; } = 0;
    public DateTime? OpeningBalanceDate { get; set; }
    /// <summary>Default expense account pre-filled on new bill line items for this vendor.</summary>
    public int? DefaultExpenseAccountId { get; set; }

    // Navigation
    public virtual ICollection<InventoryItem> InventoryItems { get; set; } = new List<InventoryItem>();
    public virtual ICollection<Bill> Bills { get; set; } = new List<Bill>();
    public virtual ICollection<BillPayment> BillPayments { get; set; } = new List<BillPayment>();
    public virtual ICollection<Expense> Expenses { get; set; } = new List<Expense>();
    public virtual Account? DefaultExpenseAccount { get; set; }
}

public class InventoryTransaction : BaseEntity
{
    public int InventoryItemId { get; set; }
    public InventoryTransactionType TransactionType { get; set; }
    public decimal Quantity { get; set; }
    public decimal UnitCost { get; set; }
    public decimal TotalCost { get; set; }
    
    public DateTime TransactionDate { get; set; } = DateTime.UtcNow;
    
    public string? Reference { get; set; } // PO number, Job number, etc.
    public string? Notes { get; set; }

    public decimal BalanceAfter { get; set; }

    // Optional FK to the PO that generated this purchase transaction
    public int? PurchaseOrderId { get; set; }
    public virtual PurchaseOrder? PurchaseOrder { get; set; }

    // Optional FK to the job this material was used on (set by QR scan / manual log)
    public int? JobId { get; set; }
    public virtual Job? Job { get; set; }

    public virtual InventoryItem InventoryItem { get; set; } = null!;
}

public class JobPhoto : BaseEntity
{
    public int JobId { get; set; }
    public virtual Job Job { get; set; } = null!;

    /// <summary>
    /// Relative path from media folder (e.g., "1/job-photos/5/1.jpg")
    /// </summary>
    public string FilePath { get; set; } = string.Empty;

    /// <summary>
    /// Original filename when uploaded
    /// </summary>
    public string FileName { get; set; } = string.Empty;

    /// <summary>
    /// File size in bytes
    /// </summary>
    public long FileSize { get; set; }

    /// <summary>
    /// Content type (e.g., "image/jpeg")
    /// </summary>
    public string ContentType { get; set; } = string.Empty;

    /// <summary>
    /// User-provided caption/note for the photo
    /// </summary>
    public string? Caption { get; set; }

    /// <summary>
    /// Type of photo (Before, After, Progress, QualityCheck, Issue, Completed)
    /// </summary>
    public JobPhotoType PhotoType { get; set; } = JobPhotoType.Progress;

    /// <summary>
    /// Display order for sorting photos
    /// </summary>
    public int DisplayOrder { get; set; }

    /// <summary>
    /// User who uploaded the photo
    /// </summary>
    public string UploadedById { get; set; } = string.Empty;
    public virtual ApplicationUser? UploadedBy { get; set; }

    public DateTime UploadedDate { get; set; } = DateTime.UtcNow;

    /// <summary>
    /// Comma-separated tags for this photo (e.g., colors used, finish type)
    /// </summary>
    public string? Tags { get; set; }

    /// <summary>
    /// True for photos copied from an AI quote analysis — excluded from subscription photo limits.
    /// </summary>
    public bool IsAiAnalysisPhoto { get; set; }
}

public class JobNote : BaseEntity
{
    public int JobId { get; set; }
    public string Note { get; set; } = string.Empty;
    public bool IsImportant { get; set; }
    public bool IsInternal { get; set; } = true; // Don't show to customer
    
    public virtual Job Job { get; set; } = null!;
}

public class CustomerNote : BaseEntity
{
    public int CustomerId { get; set; }
    public string Note { get; set; } = string.Empty;
    public bool IsImportant { get; set; }
    
    public virtual Customer Customer { get; set; } = null!;
}

public class JobStatusHistory : BaseEntity
{
    public int JobId { get; set; }

    // Lookup foreign keys (replacing enums)
    public int FromStatusId { get; set; }
    public int ToStatusId { get; set; }

    public DateTime ChangedDate { get; set; } = DateTime.UtcNow;
    public string? Notes { get; set; }

    // Navigation properties
    public virtual Job Job { get; set; } = null!;
    public virtual JobStatusLookup FromStatus { get; set; } = null!;
    public virtual JobStatusLookup ToStatus { get; set; } = null!;
}

public class PricingTier : BaseEntity
{
    public string TierName { get; set; } = string.Empty;
    public string? Description { get; set; }
    public decimal DiscountPercent { get; set; }
    public bool IsActive { get; set; } = true;
    
    public virtual ICollection<Customer> Customers { get; set; } = new List<Customer>();
}