namespace SimpleAdmin.Application;

/// <summary>
/// 实现正式员工档案查询业务能力，仅展示审核通过后创建的正式员工。
/// </summary>
public class OnboardingEmployeeService : IOnboardingEmployeeService
{
    private readonly SqlSugarScope _db;

    public OnboardingEmployeeService()
    {
        _db = DbContext.DB;
    }

    /// <summary>
    /// 分页查询审核通过后生成的正式员工档案。
    /// </summary>
    public Task<SqlSugarPagedList<ObEmployee>> Page(OnboardingEmployeePageInput input)
    {
        return _db.Queryable<ObEmployee>()
            .WhereIF(
                !string.IsNullOrWhiteSpace(input.EmployeeName),
                item => item.EmployeeName.Contains(input.EmployeeName)
                        || item.IdCardNumber.Contains(input.EmployeeName))
            .WhereIF(!string.IsNullOrWhiteSpace(input.Phone), item => item.Phone.Contains(input.Phone))
            .WhereIF(input.CompanyId.HasValue, item => item.CompanyId == input.CompanyId.Value)
            .WhereIF(input.DepartmentId.HasValue, item => item.DepartmentId == input.DepartmentId.Value)
            .WhereIF(input.PositionId.HasValue, item => item.PositionId == input.PositionId.Value)
            .OrderByDescending(item => item.CreateTime)
            .ToPagedListAsync(input.PageNum, input.PageSize);
    }

    /// <summary>
    /// 查询正式员工及其来源任务、合同和审核记录。
    /// </summary>
    public async Task<OnboardingEmployeeDetailOutput> Detail(BaseIdInput input)
    {
        var employee = await _db.Queryable<ObEmployee>().InSingleAsync(input.Id)
            ?? throw Oops.Bah("正式员工不存在");
        var task = await _db.Queryable<ObOnboardingTask>().FirstAsync(x => x.EmployeeId == employee.Id);
        var contracts = task == null
            ? new List<ObTaskContract>()
            : await _db.Queryable<ObTaskContract>()
                .Where(item => item.TaskId == task.Id)
                .ToListAsync();
        var audits = task == null
            ? new List<ObTaskAudit>()
            : await _db.Queryable<ObTaskAudit>()
                .Where(item => item.TaskId == task.Id)
                .OrderByDescending(item => item.AuditedAt)
                .ToListAsync();

        return new OnboardingEmployeeDetailOutput
        {
            Employee = employee,
            Task = task,
            Contracts = contracts,
            Audits = audits
        };
    }
}