using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StudentProgressRecord.Entity
{
    public class Statement
    {
        public long Id { get; set; }

        [Browsable(false)]
        public long SubjectId { get; set; }

        [Browsable(false)]
        public long TeacherId { get; set; }

        [DisplayName("Дата")]
        public DateTime Date { get; set; }

        [DisplayName("Название предмета")]
        public string SubjectName { get; set; } = string.Empty;

        [DisplayName("Преподователь")]
        public string TeacherName { get; set; } = string.Empty;

        [Browsable(false)]
        public IEnumerable<Marks> Marks { get; set; } = [];

        [DisplayName("Оценки")]
        public string Mark => Marks != null ? string.Join(", ", Marks.Select(x => $"{x.StudentName} {x.Mark}")) : string.Empty;

        public static Statement CreateOperation(long id, long subjectId, long teacherId, 
            DateTime timeStamp, IEnumerable<Marks> marks)
        {
            return new Statement
            {
                Id = id,
                SubjectId = subjectId,
                TeacherId = teacherId,
                Date = timeStamp,
                Marks = marks
            };
        }

        public static Statement CreateOperation(TempStatement statement, IEnumerable<Marks> marks)
        {
            return new Statement
            {
                Id = statement.Id,
                SubjectId = statement.SubjectId,
                TeacherId = statement.TeacherId,
                SubjectName = statement.SubjectName,
                TeacherName = statement.TeacherName,
                Date = statement.Date,
                Marks = marks
            };
        }

    }
}