(#3) - templating

modules/Templating/Elements/RsvReservationActionsElement.php

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+<?php
+
+namespace Reservair\Templating\Elements;
+
+use Reservair\Templating\RsvTemplateElement;
+use Reservair\Templating\RsvTemplateSymbols;
+
+/**
+ * Renders accept / refuse action buttons for a reservation, for the maintainer
+ * approval email. The links come from the template's accept_url and refuse_url
+ * symbols; the button labels can be overridden with the accept-label and
+ * refuse-label attributes.
+ */
+class RsvReservationActionsElement implements RsvTemplateElement {
+
+    /** Inline styles, since email clients ignore stylesheets. */
+    private const string ACCEPT_STYLE = 'display:inline-block;padding:10px 18px;margin-right:8px;background:#2e7d32;color:#ffffff;text-decoration:none;border-radius:4px;font-weight:bold;';
+    private const string REFUSE_STYLE = 'display:inline-block;padding:10px 18px;background:#c62828;color:#ffffff;text-decoration:none;border-radius:4px;font-weight:bold;';
+
+    public function render(RsvTemplateSymbols $symbols): string {
+        $accept_url = (string) $symbols->get('accept_url', '');
+        $refuse_url = (string) $symbols->get('refuse_url', '');
+        if ($accept_url === '' && $refuse_url === '') {
+            return '';
+        }
+
+        $accept_label = (string) $symbols->get('accept-label', 'Přijmout');
+        $refuse_label = (string) $symbols->get('refuse-label', 'Odmítnout');
+
+        return '<a href="' . esc_url($accept_url) . '" style="' . self::ACCEPT_STYLE . '">' . esc_html($accept_label) . '</a>'
+             . '<a href="' . esc_url($refuse_url) . '" style="' . self::REFUSE_STYLE . '">' . esc_html($refuse_label) . '</a>';
+    }
+
+    public function symbols(): array {
+        return ['accept-label', 'refuse-label'];
+    }
+}

modules/Templating/Elements/RsvReservationSummaryElement.php

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+<?php
+
+namespace Reservair\Templating\Elements;
+
+use Reservair\Templating\RsvTemplateElement;
+use Reservair\Templating\RsvTemplateSymbols;
+
+/**
+ * Emits the client-side summary placeholder. The browser-side RsvFormSender
+ * locates this div after form submission and fills it with the visitor's
+ * selected time slots.
+ */
+class RsvReservationSummaryElement implements RsvTemplateElement {
+
+    public function render(RsvTemplateSymbols $symbols): string {
+        return '<div class="rsv-success-summary"></div>';
+    }
+
+    public function symbols(): array {
+        return [];
+    }
+}

modules/Templating/Elements/RsvResetFormButtonElement.php

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+<?php
+
+namespace Reservair\Templating\Elements;
+
+use Reservair\Templating\RsvTemplateElement;
+use Reservair\Templating\RsvTemplateSymbols;
+
+/**
+ * Renders a button that asks the form to clear itself. It only carries the
+ * data-rsv-reset marker; RsvFormSender finds marked buttons in the success card
+ * and links them to the form's cleanup. The label can be overridden with the
+ * label attribute.
+ */
+class RsvResetFormButtonElement implements RsvTemplateElement {
+
+    public function render(RsvTemplateSymbols $symbols): string {
+        $label = (string) $symbols->get('label', 'Odeslat znova');
+        return '<button type="button" class="rsv-form-btn" data-rsv-reset>'
+             . esc_html($label)
+             . '</button>';
+    }
+
+    public function symbols(): array {
+        return ['label'];
+    }
+}