using System;
using System.Linq;
using Microsoft.EntityFrameworkCore;

namespace BITKit;



public class SqlLiteContext<T> : DbContext,IDatabaseContext<T> where T : class
{
	
	public DbSet<T> context { get; private set; }
	protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
	{
		var sql = SQLiteContextHelper.GetConnectionString<T>();
		optionsBuilder.UseSqlite(sql);
	}
	public virtual void Add(T entity)
	{
		context.Add(entity);
		SaveChanges();
	}
	public virtual void Remove(T entity)
	{
		context.Remove(entity);
		SaveChanges();
	}
	public virtual T[] GetArray()
	{
		return context.ToArray();
	}
	public virtual bool TrySearch(Func<T,bool> searchFactory,out T result)
	{
		result = context.FirstOrDefault(searchFactory);
		return result != null;
	}
	/// <summary>
	/// 搜索数组
	/// </summary>
	/// <param name="searchFactory"></param>
	/// <param name="result"></param>
	/// <returns></returns>
	public virtual bool TrySearchArray(Func<T, bool> searchFactory, out T[] result)
	{
		result = context.Where(searchFactory).ToArray();
		return result.Length > 0;
	}
}

public static class SQLiteContextHelper
{
	private const string _database = "Database";

	public static string GetConnectionString(string key)
	{
		GetConnectionSqlAndPath(key,out var connectionSql,out var path);
		BIT4Log.Log($"已创建数据库链接:{path}");
		return connectionSql;
	}

	public static string GetConnectionString<T>()
	{
		GetConnectionSqlAndPath(typeof(T).Name,out var connectionSql,out var path);
		BIT4Log.Log<T>($"已创建数据库链接:{path}");
		return connectionSql;
	}

	public static void GetConnectionSqlAndPath(string name,out string connectionSql,out string path)
	{
		PathHelper.GetFolderPath(_database);
		path = PathHelper.GetPath(_database, $"{name}.db");
		connectionSql = $"Data Source={path}";
	}
}