using Biskilog_Accounting.Client.Pages.Product;
using Biskilog_Accounting.Shared.CustomModels;
using BlazorDateRangePicker;
using Microsoft.AspNetCore.Components.Web;

namespace Biskilog_Accounting.Client.Pages.Transactions
{
    public partial class Sales
    {
        private IEnumerable<SaleItem> m_salesItems { get; set; } = Enumerable.Empty<SaleItem>();
        private DateTimeOffset? m_startDate { get; set; } = DateTimeOffset.Now;
        private DateTimeOffset? m_endDate { get; set; } = DateTimeOffset.Now;
        private Dictionary<string, DateRange> m_ranges = new Dictionary<string, DateRange>();
        private double m_totalRevenue { get; set; }
        private double m_totalCancelledRevenue { get; set; }
        private int m_totalNbrRevenue { get; set; }
        private int m_totalNbrCancelled { get; set; }
        private bool m_lookUpMode { get; set; }
        private bool m_fetching { get; set; }
        private bool m_recent { get; set; }

        protected override void OnInitialized()
        {
            PopulateRange();
            m_salesRepo.TransactionsChanged += TransactionsChanged;
            m_searchControl.SearchValueChanged += SearchValueChanged;
            m_salesRepo.FetchStart += FetchStart;
            m_salesRepo.FetchComplete += FetchComplete;

            m_salesItems = m_salesRepo.GetRecentTransaction();
            SetParams();
            m_recent = true;
            base.OnInitialized();
        }

        private void FetchComplete(object? sender, EventArgs e)
        {
            m_fetching = false;
            StateHasChanged();
        }

        private void FetchStart(object? sender, EventArgs e)
        {
            m_fetching = true;
            StateHasChanged();
        }

        void ResetClick(MouseEventArgs e, DateRangePicker picker)
        {
            m_startDate = DateTimeOffset.UtcNow;
            m_endDate = DateTimeOffset.UtcNow;
            // Close the picker
            picker.Close();
            // Fire OnRangeSelectEvent
            picker.OnRangeSelect.InvokeAsync(new DateRange());
        }
        private void PopulateRange()
        {
            m_ranges.Clear();
            m_ranges.Add("Today", new DateRange() { Start = DateTime.Now, End = DateTime.Now.AddDays(1) });
            m_ranges.Add("Yesterday", new DateRange() { Start = DateTime.Now.AddDays(-1), End = DateTime.Now });
            m_ranges.Add("Last 7 Days", new DateRange() { Start = DateTime.Now.AddDays(-7), End = DateTime.Now });
            m_ranges.Add("Last 30 Days", new DateRange() { Start = DateTime.Now.AddDays(-30), End = DateTime.Now });
        }
        private void TransactionsChanged(object? sender, EventArgs e)
        {
            m_salesItems = m_salesRepo.GetTransactions(m_startDate.Value.Date, m_endDate.Value.Date);
            SetParams();
            StateHasChanged();
        }

        private void SearchValueChanged(string a_searchKey)
        {
            m_salesRepo.FetchReceipt(a_searchKey);
            m_lookUpMode = !string.IsNullOrEmpty(a_searchKey);
        }

        public void Dispose()
        {
            m_salesRepo.TransactionsChanged -= TransactionsChanged;
            m_searchControl.SearchValueChanged -= SearchValueChanged;
            m_salesRepo.FetchStart -= FetchStart;
            m_salesRepo.FetchComplete -= FetchComplete;
        }
        private void SetParams()
        {
            m_totalRevenue = (double)m_salesItems.Where(c => c.Status == "SOLD").Sum(t => t.Total).Value;
            m_totalNbrRevenue = m_salesItems.Where(c => c.Status == "SOLD").Count();
            m_totalNbrCancelled = m_salesItems.Where(c => c.Status != "SOLD").Count();
            m_totalCancelledRevenue = (double)m_salesItems.Where(c => c.Status != "SOLD").Sum(t => t.Total).Value;
            m_recent = false;
        }
        private void LoadTransactions()
        {
            m_searchControl.SearchValueChanged -= SearchValueChanged;
            m_searchControl.Clear();
            m_lookUpMode = false;
            m_salesRepo.FetchTransaction(m_startDate.Value.Date, m_endDate.Value.Date);
            m_searchControl.SearchValueChanged += SearchValueChanged;
        }
    }
}