fix(client): automatically derive gallery for inline result

packages/client/src/methods/bots/answer-inline-query.ts

@@ -28,7 +28,10 @@ export async function answerInlineQuery(
          * Whether the results should be displayed as a gallery instead
          * of a vertical list. Only applicable to some media types.
          *
-         * Defaults to `true`
+         * In some cases changing this may lead to the results not being
+         * displayed by the client.
+         *
+         * Default is derived automatically based on result types
          */
         gallery?: boolean
 
@@ -94,16 +97,14 @@ export async function answerInlineQuery(
 ): Promise<void> {
     if (!params) params = {}
 
-    const tlResults = await Promise.all(
-        results.map((it) => BotInline._convertToTl(this, it, params!.parseMode))
-    )
+    const [gallery, tlResults] = await BotInline._convertToTl(this, results, params!.parseMode)
 
     await this.call({
         _: 'messages.setInlineBotResults',
         queryId,
         results: tlResults,
         cacheTime: params.cacheTime ?? 300,
-        gallery: params.gallery ?? true,
+        gallery: params.gallery ?? gallery,
         private: params.private,
         nextOffset: params.nextOffset,
         switchPm: params.switchPm

packages/client/src/types/bots/input/input-inline-result.ts

@@ -714,9 +714,9 @@ export namespace BotInline {
     /** @internal */
     export async function _convertToTl(
         client: TelegramClient,
-        obj: InputInlineResult,
+        results: InputInlineResult[],
         parseMode?: string | null
-    ): Promise<tl.TypeInputBotInlineResult> {
+    ): Promise<[boolean, tl.TypeInputBotInlineResult[]]> {
         const normalizeThumb = (
             obj: InputInlineResult,
             fallback?: string
@@ -748,7 +748,16 @@ export namespace BotInline {
             }
         }
 
-        if (obj.type === 'article') {
+        const items: tl.TypeInputBotInlineResult[] = []
+
+        let isGallery = false
+        let forceVertical = false
+
+        for (const obj of results) {
+            switch (obj.type) {
+                case 'article': {
+                    forceVertical = true
+
                     let sendMessage: tl.TypeInputBotInlineMessage
                     if (obj.message) {
                         sendMessage = await BotInlineMessage._convertToTl(
@@ -786,7 +795,7 @@ export namespace BotInline {
                         }
                     }
 
-            return {
+                    items.push({
                         _: 'inputBotInlineResult',
                         id: obj.id,
                         type: obj.type,
@@ -808,10 +817,10 @@ export namespace BotInline {
                                 ? normalizeThumb(obj)
                                 : obj.thumb,
                         sendMessage,
+                    })
+                    continue
                 }
-        }
-
-        if (obj.type === 'game') {
+                case 'game': {
                     let sendMessage: tl.TypeInputBotInlineMessage
                     if (obj.message) {
                         sendMessage = await BotInlineMessage._convertToTl(
@@ -830,12 +839,23 @@ export namespace BotInline {
                         }
                     }
 
-            return {
+                    items.push({
                         _: 'inputBotInlineResultGame',
                         id: obj.id,
                         shortName: obj.shortName,
                         sendMessage,
+                    })
+                    continue
                 }
+                case 'gif':
+                case 'photo':
+                case 'sticker':
+                    isGallery = true
+                    break
+                case 'audio':
+                case 'contact':
+                case 'voice':
+                    forceVertical = true
             }
 
             let sendMessage: tl.TypeInputBotInlineMessage
@@ -1018,7 +1038,7 @@ export namespace BotInline {
             }
 
             if (!media || media._ === 'inputWebDocument') {
-            return {
+                items.push({
                     _: 'inputBotInlineResult',
                     id: obj.id,
                     type: obj.type,
@@ -1027,20 +1047,22 @@ export namespace BotInline {
                     content: media,
                     thumb: normalizeThumb(obj, media?.url),
                     sendMessage,
-            }
+                })
+                continue
             }
 
             if (media._ === 'inputPhoto') {
-            return {
+                items.push({
                     _: 'inputBotInlineResultPhoto',
                     id: obj.id,
                     type: obj.type,
                     photo: media,
                     sendMessage,
-            }
+                })
+                continue
             }
 
-        return {
+            items.push({
                 _: 'inputBotInlineResultDocument',
                 id: obj.id,
                 type: obj.type,
@@ -1048,6 +1070,9 @@ export namespace BotInline {
                 description,
                 document: media,
                 sendMessage,
-        }
+            })
+        }
+
+        return [isGallery && !forceVertical, items]
     }
 }