From 7e9f255fdca965e4df72625dbc5a1ed4d73b343a Mon Sep 17 00:00:00 2001
From: teidesu <me@tei.su>
Date: Tue, 27 Apr 2021 20:30:20 +0300
Subject: [PATCH] feat(client): chat invite link class

---
 .../src/types/peers/chat-invite-link.ts       | 80 +++++++++++++++++++
 packages/client/src/types/peers/index.ts      |  1 +
 2 files changed, 81 insertions(+)
 create mode 100644 packages/client/src/types/peers/chat-invite-link.ts

diff --git a/packages/client/src/types/peers/chat-invite-link.ts b/packages/client/src/types/peers/chat-invite-link.ts
new file mode 100644
index 00000000..5146de0a
--- /dev/null
+++ b/packages/client/src/types/peers/chat-invite-link.ts
@@ -0,0 +1,80 @@
+import { makeInspectable } from '../utils'
+import { TelegramClient } from '../../client'
+import { tl } from '@mtcute/tl'
+
+/**
+ * An invite link
+ */
+export class ChatInviteLink {
+    readonly client: TelegramClient
+    readonly raw: tl.RawChatInviteExported
+
+    constructor (client: TelegramClient, raw: tl.RawChatInviteExported) {
+        this.client = client
+        this.raw = raw
+    }
+
+    /**
+     * The invite link as a `t.me/joinchat/` string.
+     *
+     * If the link was created by another administrator, the second
+     * part of the link will be censored with `...` (e.g. `https://t.me/joinchat/BGxxHIg4...`
+     */
+    get link(): string {
+        return this.raw.link
+    }
+
+    /**
+     * Creation date of the link
+     */
+    get date(): Date {
+        return new Date(this.raw.date * 1000)
+    }
+
+    /**
+     * Whether this link is primary (i.e. "permanent")
+     */
+    get isPrimary(): boolean {
+        return this.raw.permanent!
+    }
+
+    /**
+     * Whether this link was revoked and can't be used anymore
+     */
+    get isRevoked(): boolean {
+        return this.raw.revoked!
+    }
+
+    /**
+     * The date since which the link will be valid (if any)
+     */
+    get startDate(): Date | null {
+        return this.raw.startDate ? new Date(this.raw.startDate * 1000) : null
+    }
+
+    /**
+     * The date until which the link will be valid (if any)
+     */
+    get endDate(): Date | null {
+        return this.raw.expireDate ? new Date(this.raw.expireDate * 1000) : null
+    }
+
+    /**
+     * Maximum number of users that can be members of this chat
+     * at the same time after joining using this link.
+     *
+     * Integer in range `[1, 99999]` or `Infinity` if unspecified
+     */
+    get usageLimit(): number {
+        return this.raw.usageLimit ?? Infinity
+    }
+
+    /**
+     * Number of users currently in the chat that joined using this link
+     */
+    get usage(): number {
+        return this.raw.usageLimit ?? 0
+    }
+}
+
+makeInspectable(ChatInviteLink)
diff --git a/packages/client/src/types/peers/index.ts b/packages/client/src/types/peers/index.ts
index 92b153bb..bd86fd75 100644
--- a/packages/client/src/types/peers/index.ts
+++ b/packages/client/src/types/peers/index.ts
@@ -5,6 +5,7 @@ export * from './chat'
 export * from './chat-preview'
 export { InputChatPermissions } from './chat-permissions'
 export * from './chat-member'
+export * from './chat-invite-link'
 
 /**
  * Peer types that have one-to-one relation to tl.Peer* types.