{#
    ledger-pyreport
    Copyright © 2020  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_report.html' %}

{% macro print_rows(account, invert=False, level=0) %}
	<tr>
		<td style="padding-left: calc(2px + {{ level }}em);">
			{% if pandls|length == 1 %}
				<a href="/transactions?{{ {'date': pandls[0].date.strftime('%Y-%m-%d'), 'pstart': pandls[0].pstart.strftime('%Y-%m-%d'), 'account': account.name}|urlencode }}">{{ account.bits[-1] }}</a>
			{% else %}
				{{ account.bits[-1] }}
			{% endif %}
		</td>
		{% for pandl in pandls %}
			{% set amount = (-pandl.get_balance(account) if invert else pandl.get_balance(account)).exchange(report_currency, True) %}
			<td>{% if amount != 0 %}<a href="/transactions?{{ {'date': pandl.date.strftime('%Y-%m-%d'), 'pstart': pandl.pstart.strftime('%Y-%m-%d'), 'account': account.name}|urlencode }}">{{ amount|a }}</a>{% endif %}</td>
		{% endfor %}
	</tr>
	
	{% for child in account.children if child in accounts %}
		{{ print_rows(child, invert, level + 1) }}
	{% endfor %}
{% endmacro %}

{% macro do_accounts(root, label, invert, year_headers) %}
	<tr>
		{% if year_headers %}
			{# CSS hackery to centre-align the heading #}
			<th class="h1" style="padding-left: calc(2px + {{ pandls|length * 6 }}em);">{{ label }}</th>
			{% for pandl in pandls %}<th class="h2">{{ pandl.date.strftime('%Y') }}&nbsp;</th>{% endfor %}
		{% else %}
			<th class="h1" colspan="{{ pandls|length + 1 }}">{{ label }}</th>
		{% endif %}
	</tr>
	
	{% for account in root.children if account in accounts %}
		{{ print_rows(account, invert=invert) }}
	{% endfor %}
	
	<tr class="total">
		<td>Total {{ label }}</td>
		{% for pandl in pandls %}<td>{{ (-pandl.get_total(root) if invert else pandl.get_total(root)).exchange(report_currency, True)|a }}</td>{% endfor %}
	</tr>
{% endmacro %}

{% block title %}Income Statement for the {{ period }}{% endblock %}

{% block report %}
	<h1>Income Statement</h1>
	<h2>For the {{ period }}</h2>
	
	<table class="ledger onedesc">
		{{ do_accounts(ledger.get_account(config['income_account']), 'Income', True, True) }}
		<tr><td colspan="2">&nbsp;</td></tr>
		
		{{ do_accounts(ledger.get_account(config['expenses_account']), 'Expenses', False, False) }}
		<tr><td colspan="2">&nbsp;</td></tr>
		
		<tr class="total">
			<td>Net Surplus (Loss)</td>
			{% for pandl in pandls %}<td>{{ -(pandl.get_total(ledger.get_account(config['income_account'])) + pandl.get_total(ledger.get_account(config['expenses_account']))).exchange(report_currency, True)|a }}</td>{% endfor %}
		</tr>
	</table>
{% endblock %}