From 47c498ad2eb008f3339e739d979068457c671f76 Mon Sep 17 00:00:00 2001
From: Nikita Karamov <me@kytta.dev>
Date: Sat, 18 Mar 2023 00:34:18 +0100
Subject: [PATCH] Re-implement prefilling instance and text

---
 lib/main.js                          | 71 ----------------------------
 src/components/instance-select.astro |  5 +-
 src/pages/index.astro                |  9 +++-
 3 files changed, 11 insertions(+), 74 deletions(-)
 delete mode 100644 lib/main.js

diff --git a/lib/main.js b/lib/main.js
deleted file mode 100644
index bbbe886..0000000
--- a/lib/main.js
+++ /dev/null
@@ -1,71 +0,0 @@
-/*!
- * @source: https://github.com/kytta/share2fedi/blob/main/lib/main.js
- *
- * @licstart  The following is the entire license notice for the
- *            JavaScript code in this page.
- *
- * share2fedi - Instance-agnostic share page for the Fediverse.
- * Copyright (C) 2020-2023  Nikita Karamov <me@kytta.dev>
- *
- * 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/>.
- *
- * @licend  The above is the entire license notice
- *          for the JavaScript code in this page.
- *
- * SPDX-License-Identifier: AGPL-3.0-or-later
- */
-
-const LOCAL_STORAGE_KEY = "recentInstances";
-
-const $instance = document.querySelector("#instance");
-
-/**
- * Adds missing "https://" and ending slash to the URL
- *
- * @param {string} url URL to normalize
- * @return {string} normalized URL
- */
-function normalizeUrl(url) {
-	if (!url.includes("http://") && !url.includes("https://")) {
-		url = "https://" + url;
-	}
-	if (url.at(-1) !== "/") {
-		url = url + "/";
-	}
-	return url;
-}
-
-function getRecentInstances() {
-	const storedValue = window.localStorage.getItem(LOCAL_STORAGE_KEY);
-	if (!storedValue) return [];
-	return JSON.parse(storedValue);
-}
-
-let prefillInstance = getRecentInstances()[0];
-
-const URLParameters = window.location.search.slice(1).split("&");
-for (const URLParameter of URLParameters) {
-	const URLParameterPair = URLParameter.split("=");
-	if (URLParameterPair[0] === "text") {
-		document.querySelector("#text").value = decodeURIComponent(
-			URLParameterPair[1],
-		);
-	} else if (URLParameterPair[0] === "instance") {
-		prefillInstance = decodeURIComponent(URLParameterPair[1]);
-	}
-}
-
-if (prefillInstance != undefined) {
-	$instance.value = normalizeUrl(prefillInstance);
-}
diff --git a/src/components/instance-select.astro b/src/components/instance-select.astro
index 10f72d1..c2ea5b2 100644
--- a/src/components/instance-select.astro
+++ b/src/components/instance-select.astro
@@ -7,6 +7,8 @@ try {
 	console.error("Couln't fetch instances:", error);
 	instances = [];
 }
+
+const { prefilledInstance } = Astro.props;
 ---
 
 <datalist id="instanceDatalist">
@@ -24,6 +26,7 @@ try {
 			list="instanceDatalist"
 			required
 			aria-describedby="https-label"
+			value={prefilledInstance}
 		/>
 	</div>
 </label>
@@ -98,7 +101,7 @@ try {
 					}
 
 					const host = extractHost(instance);
-					if (index == 0) {
+					if (index == 0 && !$instance.value) {
 						$instance.value = host;
 					}
 					const element = document.createElement("span");
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 259f1b5..db02368 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -1,6 +1,10 @@
 ---
 import InstanceSelect from "../components/instance-select.astro";
 import "../styles/main.scss";
+
+const searchParameters = new URL(Astro.request.url).searchParams;
+const prefilledText = searchParameters.get("text");
+const prefilledInstance = searchParameters.get("instance");
 ---
 
 <!--
@@ -103,10 +107,11 @@ import "../styles/main.scss";
 						rows="7"
 						placeholder="What's on your mind?"
 						required
-					></textarea>
+						>{prefilledText}</textarea
+					>
 				</label>
 
-				<InstanceSelect />
+				<InstanceSelect prefilledInstance={prefilledInstance} />
 
 				<input
 					type="submit"