add bulk photo send

bots/migrations/0009_channelhelperbotmoduleconfig_photo_group_size_and_more.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.1 on 2022-08-25 06:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bots", "0008_queueditem_processed"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="channelhelperbotmoduleconfig",
+            name="photo_group_size",
+            field=models.PositiveIntegerField(default=10),
+        ),
+        migrations.AddField(
+            model_name="channelhelperbotmoduleconfig",
+            name="send_photo_groups",
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name="channelhelperbotmoduleconfig",
+            name="send_photo_groups_threshold",
+            field=models.PositiveIntegerField(default=0, help_text="0 = disabled"),
+        ),
+    ]

bots/modules/channel_helper.py

@@ -9,7 +9,7 @@ import imagehash
 import requests
 from PIL import Image
 from django.db import models
-from telegram import Update, Bot
+from telegram import Update, Bot, InputMediaPhoto
 from telegram.ext import Dispatcher, CallbackContext, MessageHandler, Filters, CommandHandler
 from jsonrpc import Dispatcher as RPCDispatcher
 from djconfig import config
@@ -21,6 +21,9 @@ class ChannelHelperBotModuleConfig(TelegramBotModuleConfig):
     chat_id = models.CharField(max_length=32)
     queued = models.BooleanField(default=False)
     users = models.ManyToManyField(BotUser)
+    send_photo_groups = models.BooleanField(default=False)
+    send_photo_groups_threshold = models.PositiveIntegerField(default=0, help_text='0 = disabled')
+    photo_group_size = models.PositiveIntegerField(default=10)
 
     MODULE_NAME = 'Channel helper'
 
@@ -158,6 +161,19 @@ class ChannelHelperBotModuleConfig(TelegramBotModuleConfig):
         dispatcher.add_handler(MessageHandler(Filters.private, self.handle_message))
         return dispatcher
 
+    def should_send_photo_group(self):
+        # noinspection PyChainedComparisons
+        return self.send_photo_groups or (
+                self.send_photo_groups_threshold > 0 and
+                self.queued_items.filter(type='photo', processed=False).count() > self.send_photo_groups_threshold
+        )
+
+    def get_additional_images(self, for_id: int):
+        return self.queued_items\
+            .filter(type='photo', processed=False)\
+            .exclude(pk=for_id)\
+            .order_by('?')[:self.photo_group_size - 1]
+
 
 class QueuedItem(models.Model):
     config = models.ForeignKey(ChannelHelperBotModuleConfig, on_delete=models.CASCADE, related_name='queued_items')
@@ -168,6 +184,13 @@ class QueuedItem(models.Model):
     processed = models.BooleanField(default=False)
 
     def send(self, bot: Bot):
+        if self.type == 'photo' and self.config.should_send_photo_group():
+            items = [self] + list(self.config.get_additional_images(self.pk))
+            bot.send_media_group(self.config.chat_id, [InputMediaPhoto(json.loads(i.args)[0]) for i in items])
+            for i in items:
+                i.processed = True
+                i.save()
+        else:
             getattr(bot, 'send_' + self.type)(self.config.chat_id, *json.loads(self.args))
             self.processed = True
             self.save()