From b34ec8473e35e9d8dacd86c87e610a22f818eb63 Mon Sep 17 00:00:00 2001
From: RunasSudo <runassudo@yingtongli.me>
Date: Sat, 24 Dec 2022 16:43:08 +1100
Subject: [PATCH] Add account transactions view

---
 drcr/templates/transactions.html  | 89 +++++++++++++++++++++++++++++++
 drcr/templates/trial_balance.html |  2 +-
 drcr/views.py                     | 14 ++++-
 3 files changed, 103 insertions(+), 2 deletions(-)
 create mode 100644 drcr/templates/transactions.html

diff --git a/drcr/templates/transactions.html b/drcr/templates/transactions.html
new file mode 100644
index 0000000..38f20af
--- /dev/null
+++ b/drcr/templates/transactions.html
@@ -0,0 +1,89 @@
+{#  DrCr: Web-based double-entry bookkeeping framework
+    Copyright (C) 2022  Lee Yingtong Li (RunasSudo)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#}
+
+{% extends 'base.html' %}
+{% block title %}Account transactions{% endblock %}
+
+{% block body %}
+	<div class="container">
+		<h1 class="h2 mt-4 mb-4">Account transactions</h1>
+		
+		<table class="table">
+			<thead>
+				<tr>
+					<th>Date</th>
+					<th>Description</th>
+					<th>Related Account</th>
+					<th class="text-end">Dr</th>
+					<th class="text-end">Cr</th>
+					<th class="text-end">Balance</th>
+					<th></th>
+				</tr>
+			</thead>
+			<tbody>
+				{% for transaction in transactions %}
+					{% if transaction.postings|length == 2 %}
+						{% for posting in transaction.postings if posting.account == account %}
+							{% set _ = running_total.__setattr__('quantity', running_total.quantity + posting.quantity) %}
+							<tr>
+								<td>{{ transaction.dt.strftime('%Y-%m-%d') }}</td>
+								<td>{{ transaction.description }}</td>
+								<td>{% for p in transaction.postings if p.account != account %}{{ p.account }}{% endfor %}</td>
+								<td class="text-end">{{ posting.amount().format() if posting.quantity >= 0 else '' }}</td>
+								<td class="text-end">{{ (posting.amount()|abs).format() if posting.quantity < 0 else '' }}</td>
+								<td class="text-end">{{ (running_total|abs).format() }}</td>
+								<td>{{ 'Dr' if running_total.quantity >= 0 else 'Cr' }}</td>
+							</tr>
+						{% endfor %}
+					{% else %}
+						<tr>
+							<td>{{ transaction.dt.strftime('%Y-%m-%d') }}</td>
+							<td colspan="2">{{ transaction.description }}</td>
+							<td></td>
+							<td></td>
+							<td></td>
+							<td></td>
+						</tr>
+						{% for posting in transaction.postings if posting.account == account %}
+							{% set _ = running_total.__setattr__('quantity', running_total.quantity + posting.quantity) %}
+							<tr>
+								<td></td>
+								<td class="text-end"><i>{{ 'Dr' if posting.quantity >= 0 else 'Cr' }}</i></td>
+								<td>{{ account }}</td>
+								<td class="text-end">{{ posting.amount().format() if posting.quantity >= 0 else '' }}</td>
+								<td class="text-end">{{ (posting.amount()|abs).format() if posting.quantity < 0 else '' }}</td>
+								<td class="text-end">{{ (running_total|abs).format() }}</td>
+								<td>{{ 'Dr' if running_total.quantity >= 0 else 'Cr' }}</td>
+							</tr>
+						{% endfor %}
+						{% for posting in transaction.postings if posting.account != account %}
+							<tr>
+								<td></td>
+								<td class="text-end"><i>{{ 'Dr' if posting.quantity >= 0 else 'Cr' }}</i></td>
+								<td>{{ posting.account }}</td>
+								<td class="text-end">{{ posting.amount().format() if posting.quantity >= 0 else '' }}</td>
+								<td class="text-end">{{ (posting.amount()|abs).format() if posting.quantity < 0 else '' }}</td>
+								<td></td>
+								<td></td>
+							</tr>
+						{% endfor %}
+					{% endif %}
+				{% endfor %}
+			</tbody>
+		</table>
+	</div>
+{% endblock %}
diff --git a/drcr/templates/trial_balance.html b/drcr/templates/trial_balance.html
index 7cd6243..e716318 100644
--- a/drcr/templates/trial_balance.html
+++ b/drcr/templates/trial_balance.html
@@ -33,7 +33,7 @@
 			<tbody>
 				{% for name, balance in accounts.items() %}
 					<tr>
-						<td>{{ name }}</td>
+						<td><a href="/account-transactions?account={{ name }}">{{ name }}</a></td>
 						<td class="text-end">{{ balance.format() if balance.quantity >= 0 else '' }}</td>
 						<td class="text-end">{{ (balance|abs).format() if balance.quantity < 0 else '' }}</td>
 					</tr>
diff --git a/drcr/views.py b/drcr/views.py
index 60b1072..e079454 100644
--- a/drcr/views.py
+++ b/drcr/views.py
@@ -14,7 +14,7 @@
 #   You should have received a copy of the GNU Affero General Public License
 #   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-from flask import render_template
+from flask import render_template, request
 
 from .models import Amount, TrialBalancer
 from .webapp import all_transactions, app
@@ -36,3 +36,15 @@ def trial_balance():
 	total_cr = Amount(sum(v.quantity for v in balancer.accounts.values() if v.quantity < 0), '$')
 	
 	return render_template('trial_balance.html', accounts=dict(sorted(balancer.accounts.items())), total_dr=total_dr, total_cr=total_cr)
+
+@app.route('/account-transactions')
+def account_transactions():
+	# FIXME: Filter in SQL
+	transactions = [t for t in all_transactions() if any(p.account == request.args['account'] for p in t.postings)]
+	
+	return render_template(
+		'transactions.html',
+		account=request.args['account'],
+		running_total=Amount(0, '$'),
+		transactions=sorted(transactions, key=lambda t: t.dt)
+	)