using LiteDB;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Tango.PPC.Common.Resume
{
    public class JobResumeDB : IDisposable
    {
        private LiteDatabase _db;
        private ILiteCollection<JobResumeModel> _collection;

        private static Lazy<JobResumeDB> _default = new Lazy<JobResumeDB>(() => new JobResumeDB());

        public static JobResumeDB Default
        {
            get
            {
                return _default.Value;
            }
        }

        private JobResumeDB()
        {
            Init();
        }

        private void Init()
        {
            String dbFolder = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Twine", "Tango", "Job Resume v2");
            Directory.CreateDirectory(dbFolder);
            _db = new LiteDatabase($"Filename={Path.Combine(dbFolder, "job_resume.db")};connection=shared");
            _collection = _db.GetCollection<JobResumeModel>("JobResume");
        }

        public void Update(JobResumeModel model)
        {
            _collection.Update(model);
        }

        public void Add(JobResumeModel model)
        {
            _collection.Insert(model);
        }

        public List<JobResumeModel> GetAll()
        {
            return _collection.FindAll().ToList();
        }

        public JobResumeModel Get(String jobGuild)
        {
            return _collection.FindOne(x => x.JobGuid == jobGuild);
        }

        public void Delete(JobResumeModel model)
        {
            _collection.Delete(model.JobGuid);
        }

        public void Delete(String jobGuid)
        {
            _collection.Delete(jobGuid);
        }

        ~JobResumeDB()
        {
            Dispose();
        }

        public void Dispose()
        {
            try
            {
                _db?.Dispose();
            }
            catch { }
        }
    }
}