import Foundation
import WeatherKit
import CoreLocation

@available(iOS 16.0, *)
@objc(WeatherKitBridge)
class WeatherKitBridge: NSObject {
  let service = WeatherService.shared

  @objc
  static func requiresMainQueueSetup() -> Bool { return false }

  @available(iOS 16.0, *)
  @objc
  func getWeather(_ lat: Double, lon: Double, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) {
    let location = CLLocation(latitude: lat, longitude: lon)
    Task {
      do {
        let weather = try await service.weather(for: location)
        let current = weather.currentWeather
        let result: [String: Any] = [
          "temperature": current.temperature.value,
          "humidity": current.humidity * 100,
          "condition": current.condition.rawValue,
          "pressure": current.pressure.value,
          "uvIndex": current.uvIndex.value,
          "windSpeed": current.wind.speed.value as Any,
          "isDaylight": current.isDaylight,
          "visibility": current.visibility.value as Any
        ]
        resolve(result)
      } catch {
        reject("weatherkit", error.localizedDescription, error)
      }
    }
  }

  @available(iOS 16.0, *)
  @objc
  func getDailyForecast(_ lat: Double, lon: Double, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) {
    let location = CLLocation(latitude: lat, longitude: lon)
    Task {
      do {
        let weather = try await service.weather(for: location)
        let daily = weather.dailyForecast.prefix(3).map { day in
          return [
            "high": day.highTemperature.value,
            "low": day.lowTemperature.value,
            "condition": day.condition.rawValue,
            "precipitationChance": day.precipitationChance * 100
          ] as [String : Any]
        }
        resolve(daily)
      } catch {
        reject("weatherkit", error.localizedDescription, error)
      }
    }
  }

  @objc
  func getHourlyForecast(_ lat: Double, lon: Double, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) {
    let location = CLLocation(latitude: lat, longitude: lon)
    Task {
      do {
        let weather = try await service.weather(for: location)
        let hourly = weather.hourlyForecast.prefix(6).map { hour in
          return [
            "temperature": hour.temperature.value,
            "condition": hour.condition.rawValue,
            "precipitationChance": hour.precipitationChance * 100,
            "date": hour.date.timeIntervalSince1970 * 1000
          ] as [String : Any]
        }
        resolve(hourly)
      } catch {
        reject("weatherkit", error.localizedDescription, error)
      }
    }
  }
}