{#
	Eos - Verifiable elections
	Copyright © 2017-18  RunasSudo (Yingtong Li)
	
	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 <http://www.gnu.org/licenses/>.
#}

<h2>{{ questionNum + 1 }}. {{ election.questions.__getitem__(questionNum).prompt }}</h2>

<p><small>
	Vote for
	{% if election.questions.__getitem__(questionNum).min_choices == election.questions.__getitem__(questionNum).max_choices %}
		exactly {{ election.questions.__getitem__(questionNum).min_choices }}
	{% else %}
		between {{ election.questions.__getitem__(questionNum).min_choices }} and {{ election.questions.__getitem__(questionNum).max_choices }}
	{% endif %}
	choices. Click the check-boxes to the left of the choices to make your selection, then click the ‘Continue’ button. If you make a mistake, click the check-boxes again to clear your selection.
</small></p>

{% set is_radio = election.questions.__getitem__(questionNum).max_choices == 1 %}

<div id="question-choices" class="ui form" style="margin-bottom: 1em;">
	<div class="grouped fields">
		{% for choice in election.questions.__getitem__(questionNum).randomised_choices().impl %}
			<div class="field">
				<div class="ui{% if is_radio %} radio{% endif %} checkbox">
					<input
					{% if is_radio %}
						name="question-choices"
						type="radio"
					{% else %}
						type="checkbox"
					{% endif %}
					id="question-choice-{{ election.questions.__getitem__(questionNum).choices.impl.indexOf(choice) }}" onchange="choicesChanged();">
					
					<label for="question-choice-{{ election.questions.__getitem__(questionNum).choices.impl.indexOf(choice) }}">{{ choice.name }}{% if choice.party %} – {{ choice.party }}{% endif %}</label>
				</div>
			</div>
		{% endfor %}
		{% if is_radio and election.questions.__getitem__(questionNum).min_choices == 0 %}
			<div class="field">
				<div class="ui{% if is_radio %} radio{% endif %} checkbox">
					<input name="question-choices" type="radio" id="question-choice-none" onchange="choicesChanged();" checked>
					<label for="question-choice-none"><i>None of the above</i></label>
				</div>
			</div>
		{% endif %}
	</div>
</div>

<div class="ui hidden message" id="message-max-choices">
	<p>You have now selected the maximum allowed number of choices. If you wish to change your selections, you must first use the check-boxes to deselect a choice.</p>
</div>

<script>
	function choicesChanged() {
		{% if not is_radio %}
			var numChoices = $("#question-choices input:checked").length;
			if (numChoices >= election.questions.__getitem__(booth.questionNum).max_choices) {
				// Prevent making any more selections
				$("#question-choices input:not(:checked)").prop("disabled", true);
				$("#message-max-choices").removeClass("hidden");
			} else {
				$("#question-choices input").prop("disabled", false);
				$("#message-max-choices").addClass("hidden");
			}
		{% endif %}
	}
	
	// Fill in ballot with previous selections
	if (booth.answers[booth.questionNum]) {
		for (var selection of booth.answers[booth.questionNum].value.choices) { // Answer already serialised
			$("#question-choice-" + selection).prop("checked", true);
		}
		choicesChanged();
	}
	
	function saveSelections() {
		selections = [];
		$("#question-choices input:checked").each(function(i, el) {
			if (el.id !== "question-choice-none") {
				selections.push(parseInt(el.id.substring("question-choice-".length)));
			}
		});
		
		if (selections.length < election.questions.__getitem__(booth.questionNum).min_choices) {
			if (!window.confirm('You have selected fewer than the minimum required number of choices. If you proceed to cast this ballot, it will **NOT** be counted. If this was not your intention, please click the "Cancel" button below now, and correct your selections.')) {
				return false;
			}
		}
		
		answer = eosjs.eos.base.election.__all__.ApprovalAnswer(eosjs.__kwargtrans__({choices: selections}));
		booth.answers[booth.questionNum] = eosjs.eos.core.objects.__all__.EosObject.serialise_and_wrap(answer);
		
		return true;
	}
</script>