using Asp.Versioning;
using Core.Blueprint.Application.UsesCases.KeyVault.Input;
using Core.Blueprint.Application.UsesCases.KeyVault.Ports;
using Lib.Architecture.BuildingBlocks;
using Microsoft.AspNetCore.Mvc;

namespace Core.Cerberos.Service.API.Controllers
{
    /// <summary>
    /// Handles all services and business rules related to <see cref="MKeyVaultController"/>.
    /// </summary>
    [ApiVersion("1.0")]
    [Route("api/v{api-version:apiVersion}/[controller]")]
    [Produces("application/json")]
    [ApiController]
    public class KeyVaultController : ControllerBase
    {
        private readonly IComponentHandler<CreateSecretRequest> createSecretHandler;
        private readonly IComponentHandler<GetSecretRequest> getSecretHandler;
        private readonly IComponentHandler<UpdateSecretRequest> updateSecretHandler;
        private readonly IComponentHandler<DeleteSecretRequest> deleteSecretHandler;
        private readonly IKeyVaultPort port;

        /// <summary>
        /// Handles all services and business rules related to <see cref="MKeyVaultController"/>.
        /// </summary>
        public KeyVaultController(
            IComponentHandler<GetSecretRequest> getSecretHandler,
            IComponentHandler<CreateSecretRequest> createSecretHandler,
            IComponentHandler<UpdateSecretRequest> updateSecretHandler,
            IComponentHandler<DeleteSecretRequest> deleteSecretHandler,
            IKeyVaultPort port
            )
        {
            this.createSecretHandler = createSecretHandler;
            this.updateSecretHandler = updateSecretHandler;
            this.deleteSecretHandler = deleteSecretHandler;
            this.getSecretHandler = getSecretHandler;
            this.port = port;
        }

        /// <summary>
        /// Creates a new secret.
        /// </summary>
        [HttpPost("CreateSecret")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status412PreconditionFailed)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status422UnprocessableEntity)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        public async Task<IActionResult> CreateSecretAsync([FromBody] CreateSecretRequest newSecret, CancellationToken cancellationToken = default)
        {
            await createSecretHandler.ExecuteAsync(newSecret, cancellationToken).ConfigureAwait(false);
            return port.ViewModel;
        }

        /// <summary>
        /// Gets the secret by name.
        /// </summary>
        [HttpPost]
        [Route("GetSecretByName")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status412PreconditionFailed)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status422UnprocessableEntity)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        public async Task<IActionResult> GetSecretByName([FromBody] GetSecretRequest request, CancellationToken cancellationToken)
        {
            if (string.IsNullOrEmpty(request.Name)) { return BadRequest("Invalid secret name"); }

            await getSecretHandler.ExecuteAsync(request, cancellationToken).ConfigureAwait(false);

            return port.ViewModel;
        }

        /// <summary>
        /// Updates a full secret by identifier.
        /// </summary>
        [HttpPut("UpdateSecret")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status412PreconditionFailed)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status422UnprocessableEntity)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        public async Task<IActionResult> UpdateSecretAsync([FromBody] UpdateSecretRequest request, CancellationToken cancellationToken = default)
        {
            if (string.IsNullOrEmpty(request.Name)) { return BadRequest("Invalid secret name"); }

            if (string.IsNullOrEmpty(request.Value)) { return BadRequest("Invalid secret value"); }

            await updateSecretHandler.ExecuteAsync(request, cancellationToken).ConfigureAwait(false);

            return port.ViewModel;
        }

        /// <summary>
        /// Deletes a secret by name.
        /// </summary>
        [HttpDelete]
        [Route("DeleteSecret")]
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status412PreconditionFailed)]
        [ProducesResponseType(typeof(Notification), StatusCodes.Status422UnprocessableEntity)]
        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
        public async Task<IActionResult> DeleteSecretAsync([FromBody] DeleteSecretRequest request,
                                                                     CancellationToken cancellationToken)
        {
            if (string.IsNullOrEmpty(request.Name)) { return BadRequest("Invalid secret name"); }

            await deleteSecretHandler.ExecuteAsync(request, cancellationToken).ConfigureAwait(false);

            return port.ViewModel;
        }
    }
}