using Microsoft.AspNetCore.Mvc;
using TaskLedger.Api.Domain.Entities;
using TaskLedger.Api.Services;

namespace TaskLedger.Api.Controllers;

/// <summary>
/// Controller for task operations.
/// </summary>
[ApiController]
[Route("api/[controller]")]
public class TasksController : ControllerBase
{
    private readonly ITaskService _taskService;

    /// <summary>
    /// Initializes a new instance of the <see cref="TasksController"/> class.
    /// </summary>
    /// <param name="taskService">The task service.</param>
    public TasksController(ITaskService taskService)
    {
        _taskService = taskService;
    }

    /// <summary>
    /// Creates a new task.
    /// </summary>
    /// <param name="request">The task creation request.</param>
    /// <returns>The created task.</returns>
    [HttpPost]
    [ProducesResponseType(typeof(Domain.Entities.Task), StatusCodes.Status201Created)]
    [ProducesResponseType(StatusCodes.Status400BadRequest)]
    public async Task<ActionResult<Domain.Entities.Task>> CreateTask([FromBody] CreateTaskRequest request)
    {
        try
        {
            var task = await _taskService.CreateTaskAsync(request.Title, request.Description);
            return CreatedAtAction(nameof(GetAllTasks), new { id = task.Id }, task);
        }
        catch (ArgumentException ex)
        {
            return BadRequest(new { error = ex.Message });
        }
    }

    /// <summary>
    /// Gets all tasks.
    /// </summary>
    /// <returns>A list of all tasks.</returns>
    [HttpGet]
    [ProducesResponseType(typeof(IEnumerable<Domain.Entities.Task>), StatusCodes.Status200OK)]
    public async Task<ActionResult<IEnumerable<Domain.Entities.Task>>> GetAllTasks()
    {
        var tasks = await _taskService.GetAllTasksAsync();
        return Ok(tasks);
    }
}

/// <summary>
/// Request model for creating a task.
/// </summary>
public record CreateTaskRequest
{
    /// <summary>
    /// Gets or sets the title of the task.
    /// </summary>
    public string Title { get; init; } = string.Empty;

    /// <summary>
    /// Gets or sets the description of the task.
    /// </summary>
    public string? Description { get; init; }
}