using Simple.OData.Client;
using System.Text.Json;

namespace JSONParser.Structure
{
    public class Department : Entity
    {
        public string Name { get; set; }
        public string ShortName { get; set; }
        public BusinessUnit BusinessUnit { get; set; }
        public Department HeadOffice { get; set; }
        public string Status { get; set; }

        public override string ToString()
        {
            return Name;
        }

        public override string Serialize()
        {
            return JsonSerializer.Serialize(this);
        }

        public override async Task<long> Create(ODataClient client)
        {
            var newDept = new
            {
                Name = this.Name,
                Status = "Active",
                ShortName = this.ShortName,
                ExternalId = this.Sid,
                HeadOffice = new { Id = this.HeadOffice == null ? 0 : this.HeadOffice.DirectumId },
                BusinessUnit = new { Id = this.BusinessUnit?.DirectumId }
            };
            var created = await client
                .For("IDepartment")
                .Set(newDept)
                .InsertEntryAsync();
            this.DirectumId = (long)created["Id"];
            return (long)created["Id"];
        }

        public async override Task<long> Update(ODataClient client, long id)
        {
            var newDept = new
            {
                Name = this.Name,
                Status = "Active",
                ShortName = this.ShortName,
                ExternalId = this.Sid,
                HeadOffice = new { Id = this.HeadOffice == null ? 0 : this.HeadOffice.DirectumId },
                BusinessUnit = new { Id = this.BusinessUnit?.DirectumId }
            };
            var updated = await client
                .For("IDepartment")
                .Key(id)
                .Set(newDept)
                .UpdateEntryAsync();
            this.DirectumId = (long)updated["Id"];
            return (long)updated["Id"];
        }

        public async Task<long> GetIdBySid(ODataClient client)
        {
            long result = 0;
            if (!string.IsNullOrEmpty(Sid))
            {
                var found = await client
                    .For("IDepartment")
                    .Filter($"ExternalId eq '{this.Sid}'")
                    .FindEntryAsync();
                if (found != null)
                {
                    DirectumId = (long)found["Id"];
                    result = (long)found["Id"];
                }
            }
            return result;
        }

        public bool IsEqual(IDictionary<string, dynamic> dept)
        {
            var result = false;
            long? businessUnitId = null;
            long? headOfficeId = null;
            if (dept["BusinessUnit"] != null)
            {
                businessUnitId = dept["BusinessUnit"]["Id"];
            }
            if (dept["HeadOffice"] != null)
            {
                headOfficeId = dept["HeadOffice"]["Id"];
            }
            if (Name == dept["Name"] &&
                ShortName == dept["ShortName"] &&
                BusinessUnit?.DirectumId == businessUnitId &&
                HeadOffice?.DirectumId == headOfficeId)
            {
                result = true;
            }
            return result;
        }
    }
}