//
//  KycInteractor.swift
//  GMERemittance
//
//  Created by gme_2 on 12/09/2018.
//Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import Foundation

class KycInteractor {
    
    // MARK: Properties
    
    weak var output: KycInteractorOutput?
    private let service: KycServiceType
    
    // MARK: Initialization
    
    init(service: KycServiceType) {
        self.service = service
    }
    
    // MARK: Converting entities
    
    
    // form 1
    func _validate(model: KycForm1Model?) -> (isValid: Bool, errorsDick: [String: String]) {
        var errorsDick: [String: String] = [:]
        
        var sucks = true // isValid = true
        let formDick =
            [
                KycForm1FieldKeys.firstName: model?.firstName,
                KycForm1FieldKeys.gender: model?.gender,
                KycForm1FieldKeys.email: model?.email,
//                KycForm1FieldKeys.dob: model?.dob,
                KycForm1FieldKeys.nativeCountry: model?.nativeCountry,
                KycForm1FieldKeys.country: model?.country,
                KycForm1FieldKeys.occupation: model?.occupation,
                KycForm1FieldKeys.province: model?.province,
                KycForm1FieldKeys.mobileNumber: model?.mobile
        ]
        
        formDick.forEach({
            if ($0.value ?? "").isEmpty {
                sucks = false // isValid = false
                errorsDick[$0.key] = "Please enter a valid \($0.key)"
                if ($0.key == KycForm1FieldKeys.gender) ||  ($0.key == KycForm1FieldKeys.nativeCountry)  || ($0.key == KycForm1FieldKeys.province) || ($0.key == KycForm1FieldKeys.occupation) {
                     errorsDick[$0.key] = "Please select \($0.key)"
                }
            }
        })
        
        if let email = model?.email, email != "" {
            if !Utility.isValidEmail(email: email){
                sucks = false
                errorsDick[KycForm1FieldKeys.email] = "invalid email"
            }
        }
        
        if let mobileNo = model?.mobile, mobileNo != "", mobileNo.count != AppConstants.maxKoreanMobileNoLength {
            sucks = false
            errorsDick[KycForm1FieldKeys.mobileNumber] = "please enter valid korean mobile number"
        }

        let result = (sucks, errorsDick) // (isValid, errorsDick)
        return result
        //        self.output?.show(result1: result)
    }
    
    // form 2
    func _validate(model: KycForm2Model?) -> (isValid: Bool, errorsDick: [String: String]) {
        var errorsDick: [String: String] = [:]
        
        var sucks = true // isValid = true
        let shoulValidateExpiryDate = model?.checkExpiryDate ?? false
        let shoulValidateIssueDate = model?.checkIssueDate ?? false
        var cardType: KycVerificationIdType?
        let alienAndNationalCardNumberLenght = 14
        
        let formDick =
            [
                KycForm2FieldKeys.bank: model?.bank,
                KycForm2FieldKeys.accountNumber: model?.accountNumber,
                KycForm2FieldKeys.verificationId: model?.verificationId,
                KycForm2FieldKeys.verificationIdNumber: model?.verificationIdNumber,
                KycForm2FieldKeys.expiryDate: model?.expiryDate,
                KycForm2FieldKeys.sourceOfFund: model?.sourceOfFund,
                KycForm2FieldKeys.issueDate: model?.issueDate
        ]
        
        formDick.forEach({
            if ($0.value ?? "").isEmpty {
                
                if $0.key == KycForm2FieldKeys.issueDate {
                    if shoulValidateIssueDate {
                        sucks = false // isValid = false
                        errorsDick[$0.key] = "Please select a \($0.key)"
                    }
                }else if ( $0.key == KycForm2FieldKeys.expiryDate) {
                    if shoulValidateExpiryDate {
                        sucks = false // isValid = false
                            errorsDick[$0.key] = "Please select a \($0.key)"
                    }
                }else if $0.key == KycForm2FieldKeys.bank  || ( $0.key == KycForm2FieldKeys.verificationId) || ( $0.key == KycForm2FieldKeys.sourceOfFund) {
                        sucks = false // isValid = false
                        errorsDick[$0.key] = "Please select a \($0.key)"
                }
                    
                else {
                    sucks = false // isValid = false
                    errorsDick[$0.key] = "Please enter a valid \($0.key)"
                }
                if $0.key == KycForm2FieldKeys.verificationId {
                    if let id = KycVerificationIdType.init(rawValue: $0.value ?? "") {
                        switch id {
                        case .alieanCard, .nationalIdCard:
                           if let count = $0.value?.count, count != 0, count != alienAndNationalCardNumberLenght {
                                errorsDick[$0.key] = "Please enter a \(alienAndNationalCardNumberLenght) digit \($0.key)"
                            }
                        case .passport:
                            break
                        }
                    }
                }
                
            }
        })
        let result = (sucks, errorsDick) // (isValid, errorsDick)
        return result
        //        self.output?.show(result2: result)
    }
    
    
    // form 3
    func _validate(model: KycForm3Model?) -> (isValid: Bool, errorsDick: [String: String]) {
        var errorsDick: [String: String] = [:]
        
        var sucks = true // isValid = true
        let formDick =
            [
                KycForm3FieldKeys.selfieImage: model?.selfieImage,
                KycForm3FieldKeys.frontImage: model?.frontImage,
                KycForm3FieldKeys.backImage: model?.backImage,
                KycForm3FieldKeys.passbookImage: model?.passbookImage
        ]
        
        formDick.forEach({
            if $0.value == nil {
                sucks = false // isValid = false
                errorsDick[$0.key] = "\($0.key) filed is required"
            }
        })
        let result = (sucks, errorsDick) // (isValid, errorsDick)
        return result
        //        self.output?.show(result3: result)
    }
    
    private func getImageParams(model: KYCRequestModel) -> [String: Data] {
        var images: [String: Data] = [:]
        let model = model.kycForm3
        
        // selfie
        if let image = model?.selfieImage {
            if let data = getCompressedImage(image: image) {
                images["selfieUrl"] = data
            }
        }
        
        // front
        
        if let image = model?.frontImage {
            if let data = getCompressedImage(image: image) {
                images["regIdcardFrontUrl"] = data
            }
        }
        
        // back
        if let image = model?.backImage {
            if let data = getCompressedImage(image: image) {
                images["regIdcardBackUrl"] = data
            }
        }
        
        // passbookImage
        if let image = model?.passbookImage {
            if let data = getCompressedImage(image: image) {
                images["passbookUrl"] = data
            }
        }
        
        // passportImage
        if let image = model?.passportImage {
            if let data = getCompressedImage(image: image) {
                images["passportUrl"] = data
            }
        }
        
        return images
    }
    
    private func getCompressedImage(image: UIImage) -> Data? {
        return UIImageJPEGRepresentation(image, 0.6)
    }
    
    private func getParams(model: KYCRequestModel) -> [String: String] {
        let defaults = UserDefaults.standard
        let userName = defaults.string(forKey: UserKeys.userId) ?? ""
        let gender = model.kycForm1?.gender ?? ""
        
        var _gender = ""
        if gender.lowercased() == "Male".lowercased() {
            _gender = "M"
        }
        
        if gender.lowercased() == "Female".lowercased() {
            _gender = "F"
        }
        if gender.lowercased() == "other".lowercased() {
            _gender = "O"
        }
        
        
        let param: [String: String] =
            [
                "userId": userName,
                "mobileNumber": model.kycForm1?.mobile ?? "",
                "email": model.kycForm1?.email ?? "",
                "gender": _gender,

                "nativeCountry": model.kycForm1?.nativeCountry ?? "",
                "ProvinceId": model.kycForm1?.province ?? "",
                "occupation": model.kycForm1?.occupation ?? "",
                "primaryBankName": model.kycForm2?.bank ?? "",
                "primaryAccountNumber": model.kycForm2?.accountNumber ?? "",
                "verificationIdType": model.kycForm2?.verificationId ?? "",
                "verificationIdNumber": model.kycForm2?.verificationIdNumber ?? "",
                "expiryDate": model.kycForm2?.expiryDate ?? "",
                "issueDate": model.kycForm2?.issueDate ?? "",
                "sourceOfFund": model.kycForm2?.sourceOfFund ?? "",
                "firstName": model.kycForm1?.firstName ?? "",
                "middleName": model.kycForm1?.middleName ?? "",
                "lastName": model.kycForm1?.lastName ?? "",
                "address": model.kycForm1?.country ?? ""
        ]
        return param
    }
    
}

// MARK: Kyc interactor input interface

extension KycInteractor: KycInteractorInput {
    func validate(model: KYCRequestModel) {
        let result1 = self._validate(model: model.kycForm1)
        let result2 = self._validate(model: model.kycForm2)
        let result3 = self._validate(model: model.kycForm3)
        
        let shouldSubmit = result1.isValid && result2.isValid && result3.isValid
//        let shouldSubmit = result3.isValid
        if shouldSubmit {
            /// call api here.
            let params = self.getParams(model: model)
            let images = self.getImageParams(model: model)
            self.service.submit(param: params, images: images, success: { (response) in
//                print(response?.firstName)
                // Todo: After success what?
                // show message from api
                UserDefaults.standard.set(true, forKey: UserKeys.kyc)
                self.output?.submitSuccess()
                
            }) { (error) in
                self.output?.show(error: error)
            }
        }else {
            self.output?.show(result1: result1)
            self.output?.show(result2: result2)
            self.output?.show(result3: result3)
        }
    }
}