import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

public class Apps {

    HashMap<String, Integer> stok = new HashMap<>();
    HashMap<String, Integer> harga = new HashMap<>();
    HashMap<String, String> tanggalMasuk = new HashMap<>();

    //Catatan
    HashMap<Integer, String> nama = new HashMap<>();
    HashMap<Integer, Integer> stokKeluar = new HashMap<>();
    HashMap<Integer, Integer> total = new HashMap<>();
    HashMap<Integer, String> tanggal = new HashMap<>();

    Integer i = 1;

    public void barangMasuk(){
        System.out.println("=========Barang Masuk===========");
        System.out.print("Nama barang: ");
        String nama = scanner().nextLine();

        if (this.stok.containsKey(nama) && this.harga.containsKey(nama)){
            System.out.println("Barang sudah ada!\n");
        }else {
            System.out.print("Stok barang: ");
            Integer stok = scanner().nextInt();

            System.out.print("Harga barang: Rp.");
            Integer harga = scanner().nextInt();

            this.stok.put(nama, stok);
            this.harga.put(nama, harga);
            this.tanggalMasuk.put(nama, date());

            System.out.println("Barang berhasil disimpan!\n");
        }
    }

    public void barangKeluar() {
        System.out.println("=========Barang Keluar===========");
        System.out.print("Nama barang: ");
        String nama = scanner().nextLine();

        if (!this.stok.containsKey(nama) && !this.harga.containsKey(nama)){
            System.out.println("Barang tidak ditemukan!\n");
        }else {
            System.out.print("Jumlah: ");
            Integer jumlah = scanner().nextInt();
            System.out.println("\n");

            System.out.println("============Total=============");

            System.out.println("Nama barang: " + nama);
            System.out.println("Jumlah barang: " + jumlah);
            System.out.println("Harga satuan: Rp." + this.harga.get(nama));
            Integer totalHarga = jumlah * this.harga.get(nama);
            System.out.println("Total bayar: Rp." + totalHarga + "\n");

            this.nama.put(i, nama);
            this.stokKeluar.put(i, jumlah);
            this.total.put(i, totalHarga);
            this.tanggal.put(i, date());

            Integer temp = this.stok.get(nama) - jumlah;
            this.stok.replace(nama, temp);
            i++;
        }
    }

    public void listBarang() {
        System.out.println("=========Daftar Barang===========");
        stok.forEach((key, value) -> System.out.println("Nama barang: " + key + "\nStok barang: " + value +"\n"));
    }

    public void catatanKeluar() {
        nama.forEach((key, value) -> System.out.println(key + " " + value));

        System.out.println("=====Masukan id barang untuk melihat detail======\n");
        System.out.println("Id barang: ");
        Integer id = scanner().nextInt();

        if (!this.stokKeluar.containsKey(id)) {
            System.out.println("Barang tidak ditemukan dalam catatan! \n");
        }else {

            System.out.println("====Detail " + this.nama.get(id) + " yang keluar");
            System.out.println("Id barang: " + id);
            System.out.println("Nama barang: " + this.nama.get(id));
            System.out.println("Jumlah barang: " + this.stokKeluar.get(id));
            System.out.println("Total harga: " + this.total.get(id));
            System.out.println("Tanggal transaksi: " + this.tanggal.get(id));
            System.out.println("\n");
        }
    }

    public void lihatBarang() {
        System.out.println("=========Detail Barang===========");
        System.out.print("Nama Barang: ");
        String nama = scanner().nextLine();

        if (this.stok.containsKey(nama) && this.harga.containsKey(nama)){
            if (!this.stok.isEmpty()){
                System.out.println("Nama barang: " + nama);
                System.out.println("Stok barang: " + this.stok.get(nama));
                System.out.println("Harga barang: Rp." + this.harga.get(nama));
                System.out.println("Tanggal barang masuk: " + this.tanggalMasuk.get(nama));
                System.out.println("\n");
            }else {
                System.out.println("Barang sudah habis!\n");
            }
        }else {
            System.out.println("Barang tidak ditemukan!\n");
        }
    }

    public void updateStok() {
        System.out.println("=========Tambah Stok Barang===========");
        System.out.print("Nama Barang: ");
        String nama = scanner().nextLine();

        if (this.stok.containsKey(nama)){
            System.out.print("Stok yang ditambah: ");
            Integer stok = scanner().nextInt();
            if (stok > 0){
                System.out.println("Stok lama: " + this.stok.get(nama));
                Integer temp = this.stok.get(nama) + stok;
                System.out.println("Stok baru: " + temp);

                this.stok.replace(nama, temp);
                System.out.println("\n");
            }else {
                System.out.println("Stok barang tidak boleh kosong!\n");
            }
        }else {
            System.out.println("Barang tidak ditemukan!\n");
        }
    }

    public void updateHarga() {
        System.out.println("=========Ubah Harga Barang===========");
        System.out.print("Nama Barang: ");
        String nama = scanner().nextLine();

        if (this.harga.containsKey(nama)){
            System.out.print("Harga baru: Rp.");
            Integer harga = scanner().nextInt();
            if (harga > 0){
                System.out.println("Harga lama: Rp." + this.harga.get(nama));
                System.out.println("Harga baru: Rp." + harga);

                this.harga.replace(nama, harga);
                System.out.println("\n");
            }else {
                System.out.println("Harga barang tidak boleh kosong!\n");
            }
        }else {
            System.out.println("Barang tidak ditemukan!\n");
        }
    }

    public void hapusBarang() {
        System.out.println("=========Hapus Barang===========");
        System.out.print("Masuka nama barang yang ingin dihapus: ");
        String nama = scanner().nextLine();

        if (this.stok.containsKey(nama)){
            System.out.println("Yakin untuk menghapus barang?");
            System.out.println("1. Yakin \t 2. tidak");
            Integer pilih = scanner().nextInt();

            if (pilih == 1){
                this.stok.remove(nama);
                this.harga.remove(nama);
                this.tanggalMasuk.remove(nama);

                System.out.println("\n Sukses manghapus " + nama + "\n");
            }
        }else {
            System.out.println("Barang tidak ditemukan!\n");
        }
    }

    private Scanner scanner() {
        return new Scanner(System.in);
    }

    private String date() {
        DateFormat newDate = new SimpleDateFormat("dd/MM/yyyy H:mm:ss");
        Date date = new Date();
        return newDate.format(date);
    }

}