//
//  DaftarSertifikatPresenter.swift
//  Sirani
//
//  Created by Anhar Solehudin on 30/03/19.
//  Copyright © 2019 Anhar Solehudin. All rights reserved.
//

import Foundation
import SwiftyJSON

class DaftarSertifikatPresenter {
    private let siraniApiServices: SiraniApiServices
    weak private var view: DaftarSertifikatViewDelegate?
    
    init(siraniApiServices: SiraniApiServices) {
        self.siraniApiServices = siraniApiServices
    }
    
    func attachView(view: DaftarSertifikatViewDelegate?) {
        self.view = view
    }
    
    func detachView() {
        self.view = nil
    }
    
    func loadCertificatesData(jenis: String, columns: String, cursor: Int, prev: Int, search: String) {
        self.view?.hideNoDataLayout()
        self.view?.showLoading()
        
        var certificates = [CertificateData]()
        siraniApiServices.postToGetListSertifikat(jenis: jenis, columns: columns, cursor: cursor, prev: prev, search: search).responseJSON { response in
            if response.error == nil {
                guard let data = response.data else { return }
                if let json = try? JSON(data: data) {
                    if let data = json["data"].array {
                        if data.count > 0 {
                            for item in data {
                                let certificateData = self.parseCertificateData(from: item)
                                certificates.append(certificateData)
                            }
                            
                            self.setCertificates(certificates: certificates)
                        } else {
                            if cursor > 0 {
                                self.setCertificates(certificates: certificates)
                            } else {
                                self.showNoData()
                            }
                        }
                    } else {
                        self.showNoData()
                    }
                } else {
                    self.showNoData()
                }
            } else {
                self.showNoData()
            }
        }
    }
    
    // other functions
    private func setCertificates(certificates: [CertificateData]) {
        self.view?.setCertificates(certificates: certificates)
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.6) {
            self.view?.hideLoading()
        }
    }
    
    private func showNoData() {
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.6) {
            self.view?.showNoDataLayout()
            self.view?.hideLoading()
        }
    }
    
    private func parseCertificateData(from item: JSON) -> CertificateData {
        var licDate = item["lic_date"].stringValue
        if licDate.isEmpty || licDate == "null" { licDate = item["tgl_terbit"].stringValue }
        if licDate.isEmpty || licDate == "null" { licDate = item["tgl_berlaku"].stringValue }
        if licDate.isEmpty || licDate == "null" { licDate = item["tanggal_berlaku"].stringValue }
        if licDate.isEmpty || licDate == "null" { licDate = item["tgl"].stringValue }
        
        var expDate = item["exp_date"].stringValue
        if expDate.isEmpty || expDate == "null" { expDate = item["tgl_berakhir"].stringValue }
        if expDate.isEmpty || expDate == "null" { expDate = item["tgl_exp"].stringValue }
        if expDate.isEmpty || expDate == "null" { expDate = item["tanggal_berakhir"].stringValue }
        if expDate.isEmpty || expDate == "null" { expDate = item["exp"].stringValue }
        
        let berlakuRaw = item["berlaku"].stringValue
        if (!berlakuRaw.isEmpty && berlakuRaw != "null") {
            if berlakuRaw.contains(" s/d ") {
                let parts = berlakuRaw.components(separatedBy: " s/d ")
                if licDate.isEmpty || licDate == "null" { licDate = parts[0] }
                if (expDate.isEmpty || expDate == "null") && parts.count > 1 { expDate = parts[1] }
            } else if berlakuRaw.contains(" - ") {
                let parts = berlakuRaw.components(separatedBy: " - ")
                if licDate.isEmpty || licDate == "null" { licDate = parts[0] }
                if (expDate.isEmpty || expDate == "null") && parts.count > 1 { expDate = parts[1] }
            }
        }
        
        return CertificateData(
            nomor: item["nomor"].stringValue,
            cust_name: item["cust_name"].stringValue,
            eqp_name: item["eqp_name"].stringValue,
            lic_id: item["lic_id"].intValue,
            brand: item["brand"].stringValue,
            lic_date: licDate,
            lic_no: item["lic_no"].stringValue,
            exp_date: expDate,
            models: item["models"].stringValue,
            plg_id: item["plg_id"].intValue,
            apl_id: item["apl_id"].intValue,
            negara: item["negara"].stringValue,
            model: item["model"].stringValue,
            merk: item["merk"].stringValue,
            berlaku: item["berlaku"].stringValue,
            statusBerlaku: item["StatusBerlaku"].stringValue,
            statusBgColor: item["StatusBgColor"].stringValue
        )
    }
}