using Sonex.Data.Records;
using System;
using System.Collections.Generic;
using System.Linq;

namespace Sonex.Client.Controls.TimelineGrid;

public static class TimelineGridDataAdapter
{
    public static List<TimelineGridFunctionDefinition> CreateFunctionDefinitions(
        IEnumerable<OperationTypesRecord>? operationTypes)
    {
        if (operationTypes == null)
        {
            return [];
        }

        return operationTypes
            .Select(TimelineGridFunctionDefinition.FromRecord)
            .OrderBy(item => item.Name, StringComparer.OrdinalIgnoreCase)
            .ThenBy(item => item.Id)
            .ToList();
    }

    public static List<TimelineGridRow> CreateRows(
        IEnumerable<ActivityBarRecord>? activityBars,
        IReadOnlyDictionary<string, AccountRecord>? accounts = null,
        string unit = "pcs/h")
    {
        if (activityBars == null)
        {
            return [];
        }

        var rows = new List<TimelineGridRow>();
        var barsByAccount = activityBars
            .Where(item => item != null)
            .GroupBy(item => item.LocusAccountName ?? string.Empty)
            .OrderBy(group => group.Key, StringComparer.OrdinalIgnoreCase);

        foreach (var group in barsByAccount)
        {
            var accountName = string.IsNullOrWhiteSpace(group.Key) ? "unknown" : group.Key.Trim();
            AccountRecord? account = null;
            if (accounts is not null)
            {
                accounts.TryGetValue(accountName, out account);
            }

            var displayName = account?.FullName;
            if (string.IsNullOrWhiteSpace(displayName))
            {
                displayName = accountName;
            }

            var subtext = account?.Department;
            if (string.IsNullOrWhiteSpace(subtext))
            {
                subtext = accountName;
            }

            var row = new TimelineGridRow
            {
                Id = accountName,
                HeaderText = displayName,
                HeaderSubtext = subtext,
                Unit = unit
            };

            foreach (var bar in group.OrderBy(item => item.StartTime).ThenBy(item => item.EndTime).ThenBy(item => item.LineId))
            {
                row.Bars.Add(TimelineGridBar.FromRecord(bar));
            }

            rows.Add(row);
        }

        return rows;
    }
}