package com.example.importledger.ui import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import androidx.fragment.app.Fragment import androidx.navigation.fragment.findNavController import com.example.importledger.databinding.FragmentDashboardBinding class DashboardFragment : Fragment() { private var _binding: FragmentDashboardBinding? = null private val binding get() = _binding!! override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View { _binding = FragmentDashboardBinding.inflate(inflater, container, false) return binding.root } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { binding.btnBanking.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToBanking()) } binding.btnBillbook.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToBillbook()) } binding.btnCustomer.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToCustomer()) } binding.btnEmployee.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToEmployee()) } binding.btnInvestment.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToInvestment()) } binding.btnSettings.setOnClickListener { findNavController().navigate(DashboardFragmentDirections.actionDashboardToSettings()) } } override fun onDestroyView() { super.onDestroyView() _binding = null } } package com.example.importledger.ui import android.app.AlertDialog import android.content.Context import android.os.Bundle import android.text.InputType import android.view.* import android.widget.EditText import androidx.core.view.isVisible import androidx.fragment.app.Fragment import androidx.fragment.app.viewModels import androidx.lifecycle.lifecycleScope import androidx.recyclerview.widget.LinearLayoutManager import com.example.importledger.data.entities.BillEntity import com.example.importledger.data.entities.BillItemEntity import com.example.importledger.databinding.FragmentBillbookBinding import com.example.importledger.ui.adapters.BillListAdapter import com.example.importledger.ui.adapters.BillItemAdapter import com.example.importledger.viewmodel.BillViewModel import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.launch import kotlinx.coroutines.withContext import java.text.NumberFormat import java.util.* class BillBookFragment : Fragment() { private var _binding: FragmentBillbookBinding? = null private val binding get() = _binding!! private val vm: BillViewModel by viewModels() private lateinit var billAdapter: BillListAdapter private lateinit var itemAdapter: BillItemAdapter private var selectedBill: BillEntity? = null override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View { _binding = FragmentBillbookBinding.inflate(inflater, container, false) return binding.root } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { billAdapter = BillListAdapter { bill -> selectedBill = bill binding.tvBillInfo.text = "Bill #${bill.serial} - ${formatCurrency(bill.grandTotalCents)} - ${bill.status}" binding.groupBillDetails.isVisible = true vm.getItemsForBill(bill.id).observe(viewLifecycleOwner) { items -> itemAdapter.submitList(items) } } binding.rvBills.layoutManager = LinearLayoutManager(requireContext()) binding.rvBills.adapter = billAdapter itemAdapter = BillItemAdapter() binding.rvBillItems.layoutManager = LinearLayoutManager(requireContext()) binding.rvBillItems.adapter = itemAdapter binding.btnNewBill.setOnClickListener { showCreateBillDialog() } binding.btnExportPdf.setOnClickListener { exportSelectedBillPdf() } binding.btnExportCsv.setOnClickListener { exportAllBillsCsv() } vm.allBills.observe(viewLifecycleOwner) { list -> billAdapter.submitList(list) binding.tvNoBills.isVisible = list.isEmpty() } } private fun showCreateBillDialog() { val ctx = requireContext() val container = LinearLayoutCompat(ctx).apply { orientation = LinearLayoutCompat.VERTICAL setPadding(24,12,24,12) } val customerInput = EditText(ctx).apply { hint = "Customer ID (optional)"; inputType = InputType.TYPE_CLASS_NUMBER } val itemsCountInput = EditText(ctx).apply { hint = "Number of items"; inputType = InputType.TYPE_CLASS_NUMBER } container.addView(customerInput) container.addView(itemsCountInput) AlertDialog.Builder(ctx) .setTitle("Create Bill") .setView(container) .setPositiveButton("Create") { _, _ -> val customerId = customerInput.text.toString().trim().toLongOrNull() val itemCount = itemsCountInput.text.toString().trim().toIntOrNull() ?: 0 if (itemCount <= 0) return@setPositiveButton lifecycleScope.launch { createBillWithDummyItems(customerId, itemCount) } } .setNegativeButton("Cancel", null) .show() } private suspend fun createBillWithDummyItems(customerId: Long?, count: Int) = withContext(Dispatchers.IO) { val db = com.example.importledger.data.AppDatabase.getInstance(requireContext()) val billRepo = com.example.importledger.repository.BillRepository(db.billDao(), db.billItemDao(), db.paymentDao(), db.customerDao()) val items = mutableListOf() var grand = 0L for (i in 1..count) { val unitPriceCents = (100 * i).toLong() val qty = 1.0 val total = (unitPriceCents * qty).toLong() grand += total items.add(BillItemEntity(billId = 0, name = "Item $i", unit = "pcs", quantity = qty, unitPriceCents = unitPriceCents, totalPriceCents = total)) } billRepo.createBill(customerId, null, items) } private fun exportSelectedBillPdf() { val bill = selectedBill ?: return lifecycleScope.launch { val db = com.example.importledger.data.AppDatabase.getInstance(requireContext()) val items = db.billItemDao().getItemsForBill(bill.id) // items is Flow; collect once items.collect { list -> val out = com.example.importledger.util.PdfUtil.createBillPdf(requireContext(), bill, list) if (out != null) { com.google.android.material.snackbar.Snackbar.make(binding.root, "PDF saved: ${out.absolutePath}", 3000).show() } else { com.google.android.material.snackbar.Snackbar.make(binding.root, "PDF export failed", 3000).show() } } } } private fun exportAllBillsCsv() { lifecycleScope.launch { val db = com.example.importledger.data.AppDatabase.getInstance(requireContext()) val bills = vm.allBills.value ?: emptyList() val out = com.example.importledger.util.CsvUtil.exportBillsToCsv(requireContext(), bills) if (out != null) { com.google.android.material.snackbar.Snackbar.make(binding.root, "CSV saved: ${out.absolutePath}", 3000).show() } else { com.google.android.material.snackbar.Snackbar.make(binding.root, "CSV export failed", 3000).show() } } } private fun formatCurrency(cents: Long): String { val nf = NumberFormat.getCurrencyInstance(Locale.getDefault()) return nf.format(cents / 100.0) } override fun onDestroyView() { super.onDestroyView() _binding = null } }