From c0f316d049481953ed270397f8e4ed317f0815a0 Mon Sep 17 00:00:00 2001
From: Harvey Tindall <hrfee@protonmail.ch>
Date: Mon, 3 May 2021 18:35:27 +0100
Subject: [PATCH] add preview to Announcements

---
 api.go                 |  5 ++++-
 html/admin.html        | 28 ++++++++++++++----------
 package-lock.json      | 13 +++++------
 package.json           |  1 +
 ts/modules/accounts.ts | 49 +++++++++++++++++++++++++++++++++++++-----
 ts/modules/invites.ts  |  8 +++----
 ts/modules/settings.ts |  6 +++---
 views.go               |  6 ++++--
 8 files changed, 84 insertions(+), 32 deletions(-)

diff --git a/api.go b/api.go
index 2a0b9eb..4656522 100644
--- a/api.go
+++ b/api.go
@@ -1712,6 +1712,9 @@ func (app *appContext) GetCustomEmailTemplate(gc *gin.Context) {
 		}
 		writeVars = func(variables []string) { app.storage.customEmails.UserExpired.Variables = variables }
 		values = app.email.userExpiredValues(app, false)
+	// Just send the email html
+	case "Announcement":
+		content = ""
 	default:
 		respondBool(400, false, gc)
 		return
@@ -1747,7 +1750,7 @@ func (app *appContext) GetCustomEmailTemplate(gc *gin.Context) {
 		respondBool(500, false, gc)
 		return
 	}
-	email, err := app.email.constructTemplate("", "<div id=\"preview-content\"></div>", app)
+	email, err := app.email.constructTemplate("", "<div class=\"preview-content\"></div>", app)
 	if err != nil {
 		respondBool(500, false, gc)
 		return
diff --git a/html/admin.html b/html/admin.html
index a1b7295..fb5912d 100644
--- a/html/admin.html
+++ b/html/admin.html
@@ -156,18 +156,24 @@
             </form>
         </div>
         <div id="modal-announce" class="modal">
-            <form class="modal-content card" id="form-announce" href="">
+            <form class="modal-content wide card" id="form-announce" href="">
                 <span class="heading"><span id="header-announce"></span> <span class="modal-close">&times;</span></span>
-                <div class="content mt-half">
-                    <label class="label supra" for="announce-subject"> {{ .strings.subject }}</label>
-                    <input type="text" id="announce-subject" class="input ~neutral !normal mb-1 mt-half">
-                    <label class="label supra" for="textarea-announce">{{ .strings.message }}</label>
-                    <textarea id="textarea-announce" class="textarea full-width ~neutral !normal mt-half monospace"></textarea>
-                    <p class="support mt-half mb-1">{{ .strings.markdownSupported }}</p>
-                    <label>
-                        <input type="submit" class="unfocused">
-                        <span class="button ~urge !normal full-width center supra submit">{{ .strings.submit }}</span>
-                    </label>
+                <div class="row">
+                    <div class="col flex-col content mt-half">
+                        <label class="label supra" for="announce-subject"> {{ .strings.subject }}</label>
+                        <input type="text" id="announce-subject" class="input ~neutral !normal mb-1 mt-half">
+                        <label class="label supra" for="textarea-announce">{{ .strings.message }}</label>
+                        <textarea id="textarea-announce" class="textarea full-width ~neutral !normal mt-half monospace"></textarea>
+                        <p class="support mt-half mb-1">{{ .strings.markdownSupported }}</p>
+                        <label>
+                            <input type="submit" class="unfocused">
+                            <span class="button ~urge !normal full-width center supra submit">{{ .strings.submit }}</span>
+                        </label>
+                    </div>
+                    <div class="col card ~neutral !low">
+                        <span class="subheading supra">{{ .strings.preview }}</span>
+                        <div class="mt-half" id="announce-preview"></div>
+                    </div>
                 </div>
             </form>
         </div>
diff --git a/package-lock.json b/package-lock.json
index a9a802e..0c5c9d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "license": "ISC",
       "dependencies": {
         "@ts-stack/markdown": "^1.3.0",
+        "@types/node": "^15.0.1",
         "a17t": "^0.4.0",
         "esbuild": "^0.8.57",
         "lodash": "^4.17.19",
@@ -35,9 +36,9 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "14.14.16",
-      "resolved": "https://registry.npm.taobao.org/@types/node/download/@types/node-14.14.16.tgz?cache=0&sync_timestamp=1608756036972&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Fnode%2Fdownload%2F%40types%2Fnode-14.14.16.tgz",
-      "integrity": "sha1-PMNR+NSBAd6t/tTJ5PEWBI1De0s="
+      "version": "15.0.1",
+      "resolved": "https://registry.nlark.com/@types/node/download/@types/node-15.0.1.tgz?cache=0&sync_timestamp=1619534647758&other_urls=https%3A%2F%2Fregistry.nlark.com%2F%40types%2Fnode%2Fdownload%2F%40types%2Fnode-15.0.1.tgz",
+      "integrity": "sha1-7zTeoIgQKNETmL5b9OhWdD49w1o="
     },
     "node_modules/a17t": {
       "version": "0.4.0",
@@ -1835,9 +1836,9 @@
       }
     },
     "@types/node": {
-      "version": "14.14.16",
-      "resolved": "https://registry.npm.taobao.org/@types/node/download/@types/node-14.14.16.tgz?cache=0&sync_timestamp=1608756036972&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Fnode%2Fdownload%2F%40types%2Fnode-14.14.16.tgz",
-      "integrity": "sha1-PMNR+NSBAd6t/tTJ5PEWBI1De0s="
+      "version": "15.0.1",
+      "resolved": "https://registry.nlark.com/@types/node/download/@types/node-15.0.1.tgz?cache=0&sync_timestamp=1619534647758&other_urls=https%3A%2F%2Fregistry.nlark.com%2F%40types%2Fnode%2Fdownload%2F%40types%2Fnode-15.0.1.tgz",
+      "integrity": "sha1-7zTeoIgQKNETmL5b9OhWdD49w1o="
     },
     "a17t": {
       "version": "0.4.0",
diff --git a/package.json b/package.json
index 2d8ca85..7a10fac 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
   "homepage": "https://github.com/hrfee/jfa-go#readme",
   "dependencies": {
     "@ts-stack/markdown": "^1.3.0",
+    "@types/node": "^15.0.1",
     "a17t": "^0.4.0",
     "esbuild": "^0.8.57",
     "lodash": "^4.17.19",
diff --git a/ts/modules/accounts.ts b/ts/modules/accounts.ts
index 579335d..a06d77d 100644
--- a/ts/modules/accounts.ts
+++ b/ts/modules/accounts.ts
@@ -1,4 +1,7 @@
 import { _get, _post, _delete, toggleLoader, toDateString } from "../modules/common.js";
+import { templateEmail } from "../modules/settings.js";
+import { Marked } from "@ts-stack/markdown";
+import { stripMarkdown } from "../modules/stripmd.js";
 
 interface User {
     id: string;
@@ -193,6 +196,9 @@ export class accountsList {
     
     private _addUserButton = document.getElementById("accounts-add-user") as HTMLSpanElement;
     private _announceButton = document.getElementById("accounts-announce") as HTMLSpanElement;
+    private _announcePreview: HTMLElement;
+    private _previewLoaded = false;
+    private _announceTextarea = document.getElementById("textarea-announce") as HTMLTextAreaElement;
     private _deleteUser = document.getElementById("accounts-delete-user") as HTMLSpanElement;
     private _disableEnable = document.getElementById("accounts-disable-enable") as HTMLSpanElement;
     private _deleteNotify = document.getElementById("delete-user-notify") as HTMLInputElement;
@@ -432,7 +438,16 @@ export class accountsList {
             }
         }, true);
     }
-    
+    loadPreview = () => {
+        let content = this._announceTextarea.value;
+        if (!this._previewLoaded) {
+            content = stripMarkdown(content);
+            this._announcePreview.textContent = content;
+        } else {
+            content = Marked.parse(content);
+            this._announcePreview.innerHTML = content;
+        }
+    }
     announce = () => {
         const modalHeader = document.getElementById("header-announce");
         modalHeader.textContent = window.lang.quantity("announceTo", this._collectUsers().length);
@@ -440,16 +455,16 @@ export class accountsList {
         let list = this._collectUsers();
         const button = form.querySelector("span.submit") as HTMLSpanElement;
         const subject = document.getElementById("announce-subject") as HTMLInputElement;
-        const message = document.getElementById("textarea-announce") as HTMLTextAreaElement;
+
         subject.value = "";
-        message.value = "";
+        this._announceTextarea.value = "";
         form.onsubmit = (event: Event) => {
             event.preventDefault();
             toggleLoader(button);
             let send = {
                 "users": list,
                 "subject": subject.value,
-                "message": message.value
+                "message": this._announceTextarea.value
             }
             _post("/users/announce", send, (req: XMLHttpRequest) => {
                 if (req.readyState == 4) {
@@ -463,7 +478,29 @@ export class accountsList {
                 }
             });
         };
-        window.modals.announce.show();
+        _get("/config/emails/Announcement", null, (req: XMLHttpRequest) => {
+            if (req.readyState == 4) {
+                const preview = document.getElementById("announce-preview") as HTMLDivElement;
+                if (req.status != 200) {
+                    preview.innerHTML = `<pre class="preview-content" class="monospace"></pre>`;
+                    window.modals.announce.show();
+                    this._previewLoaded = false;
+                    return;
+                }
+                    
+                let templ = req.response as templateEmail;
+                if (!templ.html) {
+                    preview.innerHTML = `<pre class="preview-content" class="monospace"></pre>`;
+                    this._previewLoaded = false;
+                } else {
+                    preview.innerHTML = templ.html;
+                    this._previewLoaded = true;
+                }
+                this._announcePreview = preview.getElementsByClassName("preview-content")[0] as HTMLElement;
+                this.loadPreview();
+                window.modals.announce.show();
+            }
+        });
     }
     
     enableDisableUsers = () => {
@@ -750,6 +787,8 @@ export class accountsList {
             }
             this._checkCheckCount();
         };
+
+        this._announceTextarea.onkeyup = this.loadPreview;
     }
 
     reload = () => _get("/users", null, (req: XMLHttpRequest) => {
diff --git a/ts/modules/invites.ts b/ts/modules/invites.ts
index f98109b..eb0bbf2 100644
--- a/ts/modules/invites.ts
+++ b/ts/modules/invites.ts
@@ -157,7 +157,7 @@ class DOMInvite implements Invite {
         this._createdUnix = unix;
         const el = this._middle.querySelector("strong.inv-created");
         if (unix == 0) {
-            el.textContent = "n/a";
+            el.textContent = window.lang.strings("unknown");
         } else {
             el.textContent = toDateString(new Date(unix*1000));
         }
@@ -479,7 +479,7 @@ export class inviteList implements inviteList {
 }
     
 
-function parseInvite(invite: { [f: string]: string | number | string[][] | boolean }): Invite {
+function parseInvite(invite: { [f: string]: string | number | { [name: string]: number } | boolean }): Invite {
     let parsed: Invite = {};
     parsed.code = invite["code"] as string;
     parsed.email = invite["email"] as string || "";
@@ -509,8 +509,8 @@ function parseInvite(invite: { [f: string]: string | number | string[][] | boole
     parsed.userExpiry = invite["user-expiry"] as boolean;
     parsed.userExpiryTime = userExpiryTime.slice(0, -1);
     parsed.remainingUses = invite["no-limit"] ? "∞" : String(invite["remaining-uses"])
-    parsed.usedBy = invite["used-by"] as string[][] || [];
-    parsed.created = invite["created"] as string || window.lang.strings("unknown");
+    parsed.usedBy = invite["used-by"] as { [name: string]: number } || {} ;
+    parsed.created = invite["created"] as number || 0;
     parsed.profile = invite["profile"] as string || "";
     parsed.notifyExpiry = invite["notify-expiry"] as boolean || false;
     parsed.notifyCreation = invite["notify-creation"] as boolean || false;
diff --git a/ts/modules/settings.ts b/ts/modules/settings.ts
index 17aea72..36c0468 100644
--- a/ts/modules/settings.ts
+++ b/ts/modules/settings.ts
@@ -766,7 +766,7 @@ class ombiDefaults {
     }
 }
 
-interface templateEmail {
+export interface templateEmail {
     content: string;
     variables: string[];
     conditionals: string[];
@@ -829,11 +829,11 @@ class EmailEditor {
                 this._templ = req.response as templateEmail;
                 this._textArea.value = this._templ.content;
                 if (this._templ.html == "") {
-                    this._preview.innerHTML = `<pre id="preview-content" class="monospace"></pre>`;
+                    this._preview.innerHTML = `<pre class="preview-content" class="monospace"></pre>`;
                 } else {
                     this._preview.innerHTML = this._templ.html;
                 }
-                this._previewContent = document.getElementById("preview-content");
+                this._previewContent = this._preview.getElementsByClassName("preview-content")[0] as HTMLElement;
                 this.loadPreview();
                 this._content = this._templ.content;
                 const colors = ["info", "urge", "positive", "neutral"];
diff --git a/views.go b/views.go
index 6affd6a..8e7e801 100644
--- a/views.go
+++ b/views.go
@@ -53,13 +53,15 @@ func (app *appContext) pushResources(gc *gin.Context, admin bool) {
 	gc.Header("Link", cssHeader)
 }
 
+type Page int
+
 const (
-	AdminPage = iota + 1
+	AdminPage Page = iota + 1
 	FormPage
 	PWRPage
 )
 
-func (app *appContext) getLang(gc *gin.Context, page int, chosen string) string {
+func (app *appContext) getLang(gc *gin.Context, page Page, chosen string) string {
 	lang := gc.Query("lang")
 	cookie, err := gc.Cookie("lang")
 	if lang != "" {