using AssetManager.Data;
using AssetManager.Models.DTOs;
using Microsoft.Extensions.Logging;
using SqlSugar;

namespace AssetManager.Services;

/// <summary>
/// 股票代码服务实现
/// </summary>
public class TickerService : ITickerService
{
    private readonly ILogger<TickerService> _logger;
    private readonly ISqlSugarClient _db;

    public TickerService(ILogger<TickerService> logger, ISqlSugarClient db)
    {
        _logger = logger;
        _db = db;
    }

    /// <summary>
    /// 模糊搜索股票代码
    /// </summary>
    public async Task<List<TickerSearchResult>> SearchTickerAsync(string keyword, int limit = 20)
    {
        _logger.LogInformation($"Search ticker with keyword: {keyword}, limit: {limit}");

        if (string.IsNullOrWhiteSpace(keyword))
        {
            return new List<TickerSearchResult>();
        }

        // 模糊搜索：ticker 包含 keyword 或者 exchange 包含 keyword 或者 name 包含 keyword
        var results = await _db.Queryable<TiingoTicker>()
            .Where(t => t.Ticker.Contains(keyword) || t.Exchange.Contains(keyword) || (t.Name != null && t.Name.Contains(keyword)))
            .Take(limit)
            .OrderBy(t => t.Ticker)
            .Select(t => new TickerSearchResult
            {
                Ticker = t.Ticker,
                Name = t.Name,
                Exchange = t.Exchange,
                AssetType = t.AssetType,
                PriceCurrency = t.PriceCurrency
            })
            .ToListAsync();

        return results;
    }
}