99 lines
3.5 KiB
C#
99 lines
3.5 KiB
C#
using MySqlConnector;
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using UtopiaCanteenSystem.Models;
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namespace UtopiaCanteenSystem.Services;
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/// <summary>
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/// Fetches lunch menu from HRMS: lunch_menu_week (by location_site_id) → lunch_menu_item → menu_item.
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/// Uses IConfigService.GetHrmsLookupConnectionString(). Only current week is considered.
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/// </summary>
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public class MenuLookupService : IMenuLookupService
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{
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private readonly IConfigService _configService;
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public MenuLookupService(IConfigService configService)
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{
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_configService = configService;
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}
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/// <inheritdoc />
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public async Task<IReadOnlyList<HrmsMenuItem>> GetMenuItemsForSiteAsync(int siteIdNumeric, CancellationToken cancellationToken = default)
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{
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var connectionString = _configService.GetHrmsLookupConnectionString();
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if (string.IsNullOrWhiteSpace(connectionString))
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return Array.Empty<HrmsMenuItem>();
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//const string sql = @"
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// SELECT DISTINCT mi.id, mi.item_name, mi.item_type, mi.price
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// FROM lunch_menu_week w
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// JOIN lunch_menu_item li ON li.lunch_menu_week_id = w.id
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// JOIN menu_item mi ON mi.id = li.menu_item_id
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// WHERE w.location_site_id = @siteId
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// AND CURDATE() BETWEEN w.week_start_date AND w.week_end_date
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// ORDER BY mi.item_type, mi.item_name";
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const string sql = @"
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SELECT
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mi.id,
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mi.item_name,
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mi.item_type,
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mi.price,
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li.meal_name,
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li.menu_date,
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li.day_of_week
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FROM lunch_menu_week w
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JOIN lunch_menu_item li ON li.lunch_menu_week_id = w.id
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JOIN menu_item mi ON mi.id = li.menu_item_id
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WHERE w.location_site_id = @siteId
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AND CURDATE() BETWEEN w.week_start_date AND w.week_end_date
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AND li.menu_date = DATE_FORMAT(CURDATE(), '%Y-%m-%d')
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ORDER BY li.meal_name, mi.item_name;
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";
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await using var conn = new MySqlConnection(connectionString);
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await conn.OpenAsync(cancellationToken).ConfigureAwait(false);
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await using var cmd = new MySqlCommand(sql, conn);
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cmd.Parameters.AddWithValue("@siteId", siteIdNumeric);
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var list = new List<HrmsMenuItem>();
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await using var reader = await cmd.ExecuteReaderAsync(cancellationToken).ConfigureAwait(false);
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while (await reader.ReadAsync(cancellationToken).ConfigureAwait(false))
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{
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//list.Add(new HrmsMenuItem
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//{
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// MenuItemId = reader.IsDBNull(0) ? 0 : reader.GetInt32(0),
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// ItemName = GetString(reader, 1),
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// ItemType = GetString(reader, 2),
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// Price = GetDecimal(reader, 3)
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//});
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list.Add(new HrmsMenuItem
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{
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MenuItemId = reader.IsDBNull(0) ? 0 : reader.GetInt32(0),
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ItemName = GetString(reader, 1),
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ItemType = GetString(reader, 2),
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Price = GetDecimal(reader, 3),
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MealName = GetString(reader, 4),
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MenuDate = GetString(reader, 5),
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DayOfWeek = GetString(reader, 6),
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});
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}
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return list;
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}
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private static string GetString(MySqlDataReader reader, int ordinal)
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{
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if (reader.IsDBNull(ordinal)) return string.Empty;
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var v = reader.GetValue(ordinal);
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return v?.ToString() ?? string.Empty;
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}
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private static decimal GetDecimal(MySqlDataReader reader, int ordinal)
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{
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if (reader.IsDBNull(ordinal)) return 0m;
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var v = reader.GetValue(ordinal);
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return v is decimal d ? d : Convert.ToDecimal(v);
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}
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}
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