using Dlhis.Basic.Organization.Response;
using Dlhis.Entity.Basic.Entity;
using Dlhis.Sys.Api;
using Kurisu.SqlSugar.Services;
using Mapster;

namespace Dlhis.Basic.Organization.Services.Implements;

public class DepartmentService : IDepartmentService
{
    private readonly IDbContext _dbContext;
    private readonly ITenantApi _tenantApi;

    public DepartmentService(IDbContext dbContext, ITenantApi tenantApi)
    {
        _dbContext = dbContext;
        _tenantApi = tenantApi;
    }

    public async Task<List<DepartmentTreeResponse>> GetTreeAsync()
    {
        var departments = await _dbContext.Queryable<DepartmentEntity>().Select<DepartmentTreeResponse>().ToListAsync();
        //00001000 一定是这个开头的
        var tops = departments.Where(x => x.PNo == "00001000").ToList();

        tops.ForEach(x =>
        {
            RecursionGetNext(x, departments);
        });

        var myTenantResult = await _tenantApi.GetMyTenantsAsync();
        var tenants = myTenantResult.Data;

        return tenants.Select(x => new DepartmentTreeResponse
        {
            Name = x.Name,
            No = x.Code,
            PNo = null,
            Tenant = x.Code,
            CurrentNext = tops.Select(item =>
            {
                var i = item.Adapt<DepartmentTreeResponse>();
                i.PNo = x.Code;
                return i;

            }).ToList()
        })
        .ToList();
    }

    //***************************************************** help methods ****************************************************************

    private static void RecursionGetNext(DepartmentTreeResponse current, List<DepartmentTreeResponse> data)
    {
        var next = data.Where(x => x.PNo == current.No).ToList();
        if (next.Any())
        {
            current.CurrentNext = next;
            foreach (var item in next)
            {
                RecursionGetNext(item, data);
            }
        }
    }
}