import ApiController
import ManualDCore
import Vapor

extension ApiController {

  func respond(_ route: SiteRoute.Api, request: Vapor.Request) async throws
    -> any AsyncResponseEncodable
  {
    guard let encodable = try await json(.init(route: route, logger: request.logger)) else {
      return HTTPStatus.ok
    }
    return AnyJSONResponse(value: encodable)
  }
}

struct AnyJSONResponse: AsyncResponseEncodable {
  public var headers: HTTPHeaders = ["Content-Type": "application/json"]
  let value: any Encodable

  init(additionalHeaders: HTTPHeaders = [:], value: any Encodable) {
    if additionalHeaders.contains(name: .contentType) {
      self.headers = additionalHeaders
    } else {
      headers.add(contentsOf: additionalHeaders)
    }
    self.value = value
  }

  func encodeResponse(for request: Request) async throws -> Response {
    try Response(
      status: .ok,
      headers: headers,
      body: .init(data: JSONEncoder().encode(value))
    )
  }
}