Add request type hints

Add a text that explains when the currently selected request type should
be used.
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

web/template/pkgreq_form.php

@@ -16,7 +16,7 @@
 			<input type="hidden" name="token" value="<?= htmlspecialchars($_COOKIE['AURSID']) ?>" />
 			<p>
 				<label for="id_type"><?= __("Request type") ?>:</label>
-				<select name="type" id="id_type" onchange="showHideMergeSection()">
+				<select name="type" id="id_type" onchange="showHideMergeSection(); showHideRequestHints()">
 					<option value="deletion"><?= __('Deletion') ?></option>
 					<option value="merge"><?= __('Merge') ?></option>
 					<?php if (pkgbase_maintainer_uid($base_id)): ?>
@@ -35,8 +35,16 @@
 				}
 			}
 
+			function showHideRequestHints() {
+				$('#deletion_hint').hide();
+				$('#merge_hint').hide();
+				$('#orphan_hint').hide();
+				$('#' + $('#id_type').val() + '_hint').show();
+			}
+
 			$(document).ready(function() {
 				showHideMergeSection();
+				showHideRequestHints();
 
 				$('#id_merge_into').typeahead({
 					source: function(query, callback) {
@@ -59,6 +67,15 @@
 				<label for="id_comments"><?= __("Comments") ?>:</label>
 				<textarea name="comments" id="id_comments" rows="5" cols="50"></textarea>
 			</p>
+			<p id="deletion_hint">
+				<?= 'By submitting a deletion request, you ask a Trusted User to delete the package base. This type of request should be used for duplicates, software abandoned by upstream, as well as illegal and irreparably broken packages.' ?>
+			</p>
+			<p id="merge_hint">
+				<?= 'By submitting a merge request, you ask a Trusted User to delete the package base and transfer its votes and comments to another package base. Merging a package does not affect the corresponding Git repositories. Make sure you update the Git history of the target package yourself.' ?>
+			</p>
+			<p id="orphan_hint">
+				<?= 'By submitting an orphan request, you ask a Trusted User to disown the package base. Please only do this if the package needs maintainer action, the maintainer is MIA and you already tried to contact the maintainer previously.' ?>
+			</p>
 			<p>
 				<input type="submit" class="button" name="do_FileRequest" value="<?= __("Submit Request") ?>" />
 			</p>