using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Threading.Tasks;
using EveryThing.Models.CodeTable;

namespace EveryThing.Models.Project
{
    public enum ProjectStatus
    {
        [Display(Name = "Odprt")]
        Opened = 0,

        [Display(Name = "V izdelavi")]
        InProduction = 1,

        [Display(Name = "Zaključen")]
        Finished = 2,
        [Display(Name = "Ponudba")]
        Offer = 10
    }

    public class Project
    {
        [Key]
        public int IdProject { get; set; }

        [Required]
        [ForeignKey("Company")]
        public int IdCompanyFk { get; set; }
        [Required]
        [Display(Name = "Partner")]
        [ForeignKey("Partner")]
        public int IdPartnerFk { get; set; }

        [Required]
        [Display(Name = "Naziv")]
        public string Title { get; set; }

        [Display(Name = "Številka naročila kupca")]
        public string BuyersOrderNumber { get; set; }

        [Display(Name = "Opis")]
        public string Description { get; set; }

        [Required]
        public int ProjectNumber { get; set; } = 0;

        [Required]
        public int ProjectYear { get; set; } = 0;

        [Required]
        [Display(Name = "Status")]
        public ProjectStatus Status { get; set; } = ProjectStatus.Opened;

        [Display(Name = "Datum zaključka")]
        [DisplayFormat(DataFormatString = "{0:dd.MM.yyyy}", ApplyFormatInEditMode = true)]
        public DateTime? FinishedDate { get; set; }

        [NotMapped]
        [Display(Name = "Številka projekta")]
        public string ProjectNumberFormatted => $"{ProjectYear}-{ProjectNumber:D4}";

        [NotMapped]
        [Display(Name = "Prvi dobavni rok")]
        public DateTime? FirstDeliveryDate { get; set; }

        [NotMapped]
        [Display(Name = "Prvi dobavni rok")]
        public string FirstDeliveryDateString => FirstDeliveryDate == null || (DateTime)FirstDeliveryDate == DateTime.MaxValue
            ? ""
            : ((DateTime)FirstDeliveryDate).ToString("dd.MM.yyyy");

        // ForeignKey
        public CodeTableCompany Company { get; set; }
        public CodeTablePartner Partner { get; set; }

        // ProjectPart
        [InverseProperty("Project")]
        public virtual ICollection<ProjectPart> ProjectProjectPart { get; set; }

        [InverseProperty("Project")]
        public virtual ICollection<Invoice.Invoice> Invoices { get; set; }

    }
}