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defmodule DaProductAppWeb.TransactionsLive do |
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@moduledoc """ |
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LiveView for Transaction monitoring and analytics. |
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Features: |
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- Read-only transaction monitoring |
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- Search and filter capabilities |
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- Real-time transaction status updates |
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- Transaction details and history |
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- Performance analytics |
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""" |
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use DaProductAppWeb, :live_view |
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alias DaProductApp.Accounts |
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alias DaProductApp.Repo |
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alias DaProductApp.Transactions.{ReqPay, ReqChkTxn} |
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alias DaProductApp.Monitoring |
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@impl true |
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def mount(_params, session, socket) do |
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case get_current_user(session) do |
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nil -> |
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{:ok, redirect(socket, to: ~p"/login")} |
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user -> |
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if has_access?(user) do |
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if connected?(socket) do |
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# Subscribe to transaction events for real-time updates |
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Phoenix.PubSub.subscribe(DaProductApp.PubSub, "transactions") |
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end |
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socket = |
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socket |
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|> assign(:current_user, user) |
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|> assign(:page_title, "Transaction Monitoring") |
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|> assign(:current_page, :transactions) |
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|> assign(:transactions, []) |
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|> assign(:search_term, "") |
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|> assign(:status_filter, :all) |
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|> assign(:state_filter, :all) |
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|> assign(:page, 1) |
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|> assign(:page_size, 50) |
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|> assign(:has_more, false) |
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|> assign(:date_from, nil) |
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|> assign(:date_to, nil) |
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|> assign(:selected_transaction, nil) |
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|> assign(:show_details_modal, false) |
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|> assign(:stats, %{}) |
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|> load_transactions() |
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|> load_stats() |
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{:ok, socket} |
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else |
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{:ok, |
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socket |
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|> put_flash(:error, "Access denied") |
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|> redirect(to: ~p"/login")} |
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end |
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end |
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end |
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@impl true |
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def handle_params(params, _url, socket) do |
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{:noreply, apply_action(socket, socket.assigns.live_action, params)} |
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end |
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defp apply_action(socket, :index, _params) do |
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socket |
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|> assign(:page_title, "Transaction Monitoring") |
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|> assign(:show_details_modal, false) |
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end |
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defp apply_action(socket, :show, %{"id" => id}) do |
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transaction = Monitoring.get_transaction!(id) |
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# Try to find linked ReqPay and ReqChkTxn by transaction_id so we can link to their show pages |
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req_pay = Repo.get_by(ReqPay, transaction_id: transaction.id) |
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req_chk = Repo.get_by(ReqChkTxn, transaction_id: transaction.id) |
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socket |
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|> assign(:page_title, "Transaction #{transaction.org_txn_id}") |
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|> assign(:show_details_modal, true) |
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|> assign(:selected_transaction, transaction) |
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|> assign(:selected_req_pay_id, if(req_pay, do: req_pay.id, else: nil)) |
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|> assign(:selected_req_chk_txn_id, if(req_chk, do: req_chk.id, else: nil)) |
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end |
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@impl true |
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def handle_event("search", %{"search_term" => search_term}, socket) do |
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socket = |
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socket |
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|> assign(:search_term, search_term) |
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|> assign(:page, 1) |
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|> load_transactions() |
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{:noreply, socket} |
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end |
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def handle_event("filter_status", %{"status" => status}, socket) do |
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status_filter = if status == "all", do: :all, else: String.to_atom(status) |
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socket = |
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socket |
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|> assign(:status_filter, status_filter) |
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|> assign(:page, 1) |
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|> load_transactions() |
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{:noreply, socket} |
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end |
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def handle_event("filter_state", %{"state" => state}, socket) do |
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state_filter = if state == "all", do: :all, else: state |
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socket = |
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socket |
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|> assign(:state_filter, state_filter) |
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|> assign(:page, 1) |
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|> load_transactions() |
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{:noreply, socket} |
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end |
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def handle_event("filter_date_range", %{"date_from" => date_from, "date_to" => date_to}, socket) do |
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parsed_date_from = if date_from != "", do: Date.from_iso8601!(date_from), else: nil |
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parsed_date_to = if date_to != "", do: Date.from_iso8601!(date_to), else: nil |
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socket = |
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socket |
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|> assign(:date_from, parsed_date_from) |
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|> assign(:date_to, parsed_date_to) |
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|> assign(:page, 1) |
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|> load_transactions() |
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|> load_stats() |
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{:noreply, socket} |
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end |
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def handle_event("close_details", _params, socket) do |
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{:noreply, push_patch(socket, to: ~p"/transactions")} |
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end |
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def handle_event("refresh", _params, socket) do |
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socket = |
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socket |
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|> assign(:page, 1) |
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|> load_transactions() |
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|> load_stats() |
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|> put_flash(:info, "Data refreshed") |
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{:noreply, socket} |
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end |
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def handle_event("clear_filters", _params, socket) do |
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socket = |
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socket |
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|> assign(:search_term, "") |
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|> assign(:status_filter, :all) |
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|> assign(:state_filter, :all) |
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|> assign(:date_from, nil) |
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|> assign(:date_to, nil) |
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|> assign(:page, 1) |
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|> load_transactions() |
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|> load_stats() |
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{:noreply, socket} |
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end |
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def handle_event("prev_page", _params, socket) do |
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page = max(socket.assigns.page - 1, 1) |
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socket = |
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socket |
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|> assign(:page, page) |
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|> load_transactions() |
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{:noreply, socket} |
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end |
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def handle_event("next_page", _params, socket) do |
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# Only advance if there are more results |
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if socket.assigns.has_more do |
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page = socket.assigns.page + 1 |
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socket = |
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socket |
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|> assign(:page, page) |
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|> load_transactions() |
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{:noreply, socket} |
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else |
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{:noreply, socket} |
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end |
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end |
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def handle_event("set_page_size", %{"page_size" => page_size_str}, socket) do |
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page_size = case Integer.parse(page_size_str) do |
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{v, _} when v > 0 -> v |
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_ -> socket.assigns.page_size || 50 |
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end |
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socket = |
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socket |
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|> assign(:page_size, page_size) |
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|> assign(:page, 1) |
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|> load_transactions() |
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{:noreply, socket} |
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end |
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# Handle real-time updates from PubSub |
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@impl true |
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def handle_info({:transaction_created, _transaction}, socket) do |
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{:noreply, load_transactions(socket)} |
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end |
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def handle_info({:transaction_updated, _transaction}, socket) do |
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{:noreply, load_transactions(socket)} |
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end |
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def handle_info({:transaction_status_changed, _transaction}, socket) do |
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{:noreply, load_transactions(socket)} |
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end |
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defp load_transactions(socket) do |
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filters = [ |
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search_term: socket.assigns.search_term, |
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status: socket.assigns.status_filter, |
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state: socket.assigns.state_filter, |
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date_from: socket.assigns.date_from, |
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date_to: socket.assigns.date_to, |
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page: socket.assigns.page, |
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page_size: socket.assigns.page_size |
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] |
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transactions = Monitoring.list_transactions(filters) |
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has_more = length(transactions) >= (socket.assigns.page_size || 50) |
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socket |
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|> assign(:transactions, transactions) |
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|> assign(:has_more, has_more) |
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end |
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defp load_stats(socket) do |
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stats = Monitoring.get_transaction_stats(socket.assigns.date_from, socket.assigns.date_to) |
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assign(socket, :stats, stats) |
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end |
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# Helper functions for the template |
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defp status_badge_class("success"), do: "badge-success" |
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defp status_badge_class("failure"), do: "badge-error" |
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defp status_badge_class("pending"), do: "badge-warning" |
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defp status_badge_class("processing"), do: "badge-info" |
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defp status_badge_class("deemed"), do: "badge-secondary" |
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defp status_badge_class("reversed"), do: "badge-neutral" |
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defp status_badge_class(_), do: "badge-ghost" |
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defp state_badge_class("success"), do: "badge-success" |
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defp state_badge_class("failure"), do: "badge-error" |
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defp state_badge_class("initiated"), do: "badge-info" |
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defp state_badge_class("npci_received"), do: "badge-info" |
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defp state_badge_class("credit_pending"), do: "badge-warning" |
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:-( |
defp state_badge_class("reversed"), do: "badge-neutral" |
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:-( |
defp state_badge_class(_), do: "badge-ghost" |
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|
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:-( |
defp format_amount(nil), do: "N/A" |
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defp format_amount(amount) when is_binary(amount) do |
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:-( |
case Decimal.parse(amount) do |
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:-( |
{decimal, _} -> format_decimal(decimal) |
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:error -> amount |
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end |
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end |
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defp format_amount(%Decimal{} = amount), do: format_decimal(amount) |
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defp format_amount(amount) when is_number(amount), do: :erlang.float_to_binary(amount, decimals: 2) |
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defp format_decimal(%Decimal{} = decimal) do |
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decimal |
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|> Decimal.round(2) |
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:-( |
|> Decimal.to_string() |
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end |
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defp format_currency(amount, currency) when currency in ["USD", "SGD", "AED"] do |
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:-( |
case currency do |
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:-( |
"USD" -> "$#{format_amount(amount)}" |
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:-( |
"SGD" -> "S$#{format_amount(amount)}" |
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:-( |
"AED" -> "AED #{format_amount(amount)}" |
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:-( |
_ -> "#{format_amount(amount)} #{currency}" |
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end |
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end |
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:-( |
defp format_currency(amount, currency), do: "#{format_amount(amount)} #{currency || "INR"}" |
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|
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:-( |
defp transaction_status_options do |
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[ |
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{"All Statuses", "all"}, |
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{"Success", "success"}, |
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{"Failure", "failure"}, |
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{"Pending", "pending"}, |
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{"Processing", "processing"}, |
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{"Deemed", "deemed"}, |
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{"Reversed", "reversed"} |
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] |
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end |
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|
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:-( |
defp transaction_state_options do |
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[ |
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{"All States", "all"}, |
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{"Initiated", "initiated"}, |
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{"NPCI Received", "npci_received"}, |
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{"Debit Secured", "debit_secured"}, |
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{"Credit Pending", "credit_pending"}, |
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{"Partner Credit Initiated", "partner_credit_initiated"}, |
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{"Credit Success", "credit_success"}, |
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{"Success", "success"}, |
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{"Failure", "failure"}, |
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{"Reversed", "reversed"} |
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] |
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end |
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# Helper functions for authentication and access control |
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:-( |
defp get_current_user(session) do |
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:-( |
case session do |
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%{"user_id" => user_id} when is_binary(user_id) or is_integer(user_id) -> |
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:-( |
Accounts.get_user!(user_id) |
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:-( |
_ -> |
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nil |
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end |
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rescue |
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:-( |
_ -> nil |
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end |
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|
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:-( |
defp has_access?(_user), do: true |
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end |