using System.Collections.Generic;

namespace AccountsDAL.DTO.AccountTree
{
    // Flat-list-with-ParentId -> nested-tree node shared by the whole Account Tree navigator
    // (Type -> Schedule -> Group -> Account). Mirrors the existing AccountGroupTreeDTO pattern
    // (AccountsDAL/DTO/AccountGroup/AccountGroupTreeDTO.cs) but extended up to a synthetic Type
    // root and down to Account leaves. NodeType disambiguates ids that are not unique across
    // entity types (a Schedule id and a Group id can collide as plain ints).
    public class AccountTreeNodeDTO
    {
        // 0=Type(synthetic), 1=Schedule, 2=Group, 3=Account
        public byte NodeType { get; set; }

        // Type: synthetic bucket id 0-3 (Asset/Liability/Income/Expense); else the real PK
        public int Id { get; set; }

        public string Code { get; set; }

        public string Name { get; set; }

        // -1 = root; Schedule's parent is its synthetic Type bucket id
        public int ParentId { get; set; }

        // Schedule/Group: computed; Account: always false
        public bool HasChildren { get; set; }

        // Account only (0 otherwise). AccountType=3 marks a Party-linked control sub-ledger account
        // (PartyBLL.LinkPartyAccountAsync creates it with AccountId == the owning Party's PartyId) —
        // the tree/FE uses this to route to the Party Branch maintenance screen instead of the
        // generic Account Master screen. See AccountTreeBLL.GetAccountTreeLeaves.
        public int AccountType { get; set; }

        public List<AccountTreeNodeDTO> Children { get; set; } = new List<AccountTreeNodeDTO>();
    }
}