using Avalonia_EFCore.Models;

namespace Avalonia_Services.Services
{
    /// <summary>
    /// 天气预报服务，随机生成未来 5 天的天气预报数据。
    /// </summary>
    public class WeatherForecastService
    {
        private static readonly string[] Summaries =
        [
            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
        ];

        /// <summary>
        /// 生成未来 5 天的随机天气预报数据。
        /// </summary>
        /// <returns>天气预报数据集合。</returns>
        public IEnumerable<WeatherForecast> GetWeatherForecasts()
        {
            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
            {
                Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
                TemperatureC = Random.Shared.Next(-20, 55),
                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
            })
            .ToArray();
        }
    }
}