import Foundation
import Alamofire
import WowonderMessengerSDK

class FollowingManager {
    
    static let instance = FollowingManager()
    
    func getFollowings(user_id: String, session_Token: String, completionBlock: @escaping (_ Success: FollowingModel?, _ AuthError: ErrorModel?, _ ServerKeyError: ServerKeyErrorModel?, Error?) -> () ) {
        let convertUserId = Int(user_id)
        let params = [
            API.Params.user_id : convertUserId ?? 0,
            API.Params.fetch : API.Params.following,
            API.Params.server_key : API.SERVER_KEY.Server_Key
        ] as [String : Any]
        print("params >>>>> ", params)
        let urlString = API.GetUserData_Constants_Methods.GET_USER_Data_API + "\(session_Token)"
        print("urlString >>>>> ", urlString)
        AF.request(urlString, method: .post, parameters: params, encoding: URLEncoding.default, headers: nil).responseJSON { (response) in
            if let res = response.value as? [String: Any] {
                print("Response = \(res)")
                guard let apiStatus = res["api_status"] else { return }
                if apiStatus is Int {
                    print("apiStatus Int = \(apiStatus)")
                    let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                    let result = try? JSONDecoder().decode(FollowingModel.self, from: data!)
                    print("Success = \(result?.following ?? [])")
                    completionBlock(result, nil, nil, nil)
                } else {
                    let apiStatusString = apiStatus as? String
                    if apiStatusString == "400" {
                        print("apiStatus String = \(apiStatus)")
                        let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try? JSONDecoder().decode(ErrorModel.self, from: data!)
                        print("AuthError = \(result?.errors?.error_text ?? "")")
                        completionBlock(nil, result, nil, nil)
                    } else if apiStatusString == "404" {
                        let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try? JSONDecoder().decode(ServerKeyErrorModel.self, from: data!)
                        print("AuthError = \(result?.errors?.error_text ?? "")")
                        completionBlock(nil, nil, result, nil)
                    }
                }
            } else {
                print("error = \(response.error?.localizedDescription ?? "")")
                completionBlock(nil, nil, nil, response.error)
            }
        }
    }
    
    func getFollowers(user_id: String, session_Token: String, completionBlock: @escaping (_ Success: FollowersModel?, _ AuthError: ErrorModel?, _ ServerKeyError: ServerKeyErrorModel?, Error?) -> () ) {
        let convertUserId = Int(user_id)
        let params = [
            API.Params.user_id : convertUserId ?? 0,
            API.Params.fetch : API.Params.followers,
            API.Params.server_key : API.SERVER_KEY.Server_Key
        ] as [String : Any]
        print("params >>>>> ", params)
        let urlString = API.GetUserData_Constants_Methods.GET_USER_Data_API + "\(session_Token)"
        print("urlString >>>>> ", urlString)
        AF.request(urlString, method: .post, parameters: params, encoding: URLEncoding.default, headers: nil).responseJSON { (response) in
            if let res = response.value as? [String: Any] {
                print("Response = \(res)")
                guard let apiStatus = res["api_status"] else { return }
                if apiStatus is Int {
                    print("apiStatus Int = \(apiStatus)")
                    let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                    let result = try? JSONDecoder().decode(FollowersModel.self, from: data!)
                    print("Success = \(result?.followers ?? [])")
                    completionBlock(result, nil, nil, nil)
                } else {
                    let apiStatusString = apiStatus as? String
                    if apiStatusString == "400" {
                        print("apiStatus String = \(apiStatus)")
                        let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try? JSONDecoder().decode(ErrorModel.self, from: data!)
                        print("AuthError = \(result?.errors?.error_text ?? "")")
                        completionBlock(nil, result, nil, nil)
                    } else if apiStatusString == "404" {
                        let data = try? JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try? JSONDecoder().decode(ServerKeyErrorModel.self, from: data!)
                        print("AuthError = \(result?.errors?.error_text ?? "")")
                        completionBlock(nil, nil, result, nil)
                    }
                }
            } else {
                print("error = \(response.error?.localizedDescription ?? "")")
                completionBlock(nil, nil, nil, response.error)
            }
        }
        
    }
    
    func followRequest(user_Id: String, ServerKey: String, completionBlock : @escaping (_ Success: FollowRequestModel?, _ AuthError: ErrorModel?, _ ServerKeyError: ServerKeyErrorModel?, Error?) -> () ) {
        let params = [
            API.Params.server_key: API.SERVER_KEY.Server_Key,
            API.Params.user_id: user_Id
        ]
        print("params >>>>> ", params)
        let urlString = API.Following_Methods.FOLLOW_UNFOLLOW_API + (AppInstance.instance.sessionId ?? "")
        print("urlString >>>>> ", urlString)
        AF.request(urlString, method: .post, parameters: params, encoding: URLEncoding.default, headers: nil).responseJSON { (response) in
            if let res = response.value as? [String: Any] {
                print("Response = \(res)")
                guard let apiStatus = res["api_status"] else { return }
                if apiStatus is Int {
                    print("apiStatus Int = \(apiStatus)")
                    let data = try! JSONSerialization.data(withJSONObject: res, options: [])
                    let result = try! JSONDecoder().decode(FollowRequestModel.self, from: data)
                    print("Success = \(result.follow_status ?? "")")
                    completionBlock(result, nil, nil, nil)
                } else {
                    let apiStatusString = apiStatus as? String
                    if apiStatusString == "400" {
                        print("apiStatus String = \(apiStatus)")
                        let data = try! JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try! JSONDecoder().decode(ErrorModel.self, from: data)
                        print("AuthError = \(result.errors?.error_text ?? "")")
                        completionBlock(nil, result, nil, nil)
                    } else if apiStatusString == "404" {
                        let data = try! JSONSerialization.data(withJSONObject: res, options: [])
                        let result = try! JSONDecoder().decode(ServerKeyErrorModel.self, from: data)
                        print("AuthError = \(result.errors?.error_text ?? "")")
                        completionBlock(nil, nil, result, nil)
                    }
                }
            } else {
                print("error = \(response.error?.localizedDescription ?? "")")
                completionBlock(nil, nil, nil, response.error)
            }
        }
    }
    
}