using Backend.DatabaseHandler;
using Backend.Interface;
using Microsoft.AspNetCore.Mvc;

namespace Backend.Controllers;

[ApiController]
[Route("api/alerts")]
public sealed class AlertController : ControllerBase
{
	private readonly IAlertStore _store;

	public AlertController(IAlertStore store)
	{
		_store = store;
	}

	[HttpPost("create")]
	public async Task<ActionResult<AlertRecord>> Create([FromBody] CreateAlertRequest request)
	{
		if (string.IsNullOrWhiteSpace(request.Username))
			return BadRequest("Username is required.");
		if (string.IsNullOrWhiteSpace(request.Symbol))
			return BadRequest("Symbol is required.");
		if (string.IsNullOrWhiteSpace(request.AlertType))
			return BadRequest("AlertType is required.");

		var alert = new AlertRecord
		{
			Username = request.Username,
			Symbol = request.Symbol,
			AlertType = request.AlertType,
			Parameters = request.Parameters ?? "{}"
		};

		var created = await _store.CreateAlertAsync(alert);
		return Ok(created);
	}

	[HttpGet("list")]
	public async Task<ActionResult<List<AlertRecord>>> List([FromQuery] string username)
	{
		if (string.IsNullOrWhiteSpace(username))
			return BadRequest("Username is required.");

		var alerts = await _store.GetAlertsByUserAsync(username);
		return Ok(alerts);
	}

	[HttpGet("triggered")]
	public async Task<ActionResult<List<AlertRecord>>> Triggered([FromQuery] string username)
	{
		if (string.IsNullOrWhiteSpace(username))
			return BadRequest("Username is required.");

		var alerts = await _store.GetAlertsByUserAsync(username);
		return Ok(alerts.Where(a => a.IsTriggered).ToList());
	}

	[HttpDelete("delete")]
	public async Task<ActionResult<object>> Delete([FromQuery] string username, [FromQuery] long id)
	{
		if (string.IsNullOrWhiteSpace(username))
			return BadRequest("Username is required.");

		bool success = await _store.DeleteAlertAsync(username, id);
		return Ok(new { success });
	}
}

public sealed class CreateAlertRequest
{
	public string Username { get; set; } = string.Empty;
	public string Symbol { get; set; } = string.Empty;
	public string AlertType { get; set; } = string.Empty;
	public string? Parameters { get; set; }
}