Add list sampler node

node.py

@@ -4,11 +4,35 @@ import os
 import random
 
 
-class PromptFromTemplate:
+class BasePrompt:
     PROMPT_LISTS_DIR = os.path.join(
         os.path.dirname(os.path.abspath(__file__)), "prompt-lists"
     )
 
+    def __init__(self):
+        self.all_lists = {}
+        for list_name in self.get_all_available_lists():
+            self.all_lists[list_name] = self.load_list(list_name)
+
+    @classmethod
+    def get_all_available_lists(cls):
+        lists_path = os.path.join(cls.PROMPT_LISTS_DIR, "lists.json")
+        with open(lists_path, "r", encoding="utf-8") as file:
+            lists = json.load(file)
+        return lists
+
+    def load_list(self, list_name):
+        hyphenated_list = re.sub(r"([a-z])([A-Z])", r"\1-\2", list_name).lower()
+        category, name = hyphenated_list.split(".")
+        lists_path = os.path.join(self.PROMPT_LISTS_DIR, f"lists/{category}/{name}.yml")
+        with open(lists_path, "r", encoding="utf-8") as file:
+            content = file.read()
+            list_data = content.split("---")[2].strip().split("\n")
+
+        return list_data
+
+
+class PromptFromTemplate(BasePrompt):
     @classmethod
     def INPUT_TYPES(cls):
         return {
@@ -21,11 +45,6 @@ class PromptFromTemplate:
             }
         }
 
-    def __init__(self):
-        self.all_lists = {}
-        for list_name in self.get_all_available_lists():
-            self.all_lists[list_name] = self.load_list(list_name)
-
     RETURN_TYPES = ("STRING",)
     FUNCTION = "generate_prompt_from_template"
     CATEGORY = "Prompter"
@@ -57,29 +76,66 @@ class PromptFromTemplate:
         print(prompt)
         return (prompt,)
 
-    def get_all_available_lists(self):
-        lists_path = os.path.join(self.PROMPT_LISTS_DIR, "lists.json")
-        with open(lists_path, "r", encoding="utf-8") as file:
-            lists = json.load(file)
-        return lists
-
     def get_random_list(self):
         return random.choice(list(self.all_lists.keys()))
 
     def get_random_items_from_list(self, list_name, item_count):
         return random.sample(self.all_lists[list_name], item_count)
 
-    def load_list(self, list_name):
-        hyphenated_list = re.sub(r"([a-z])([A-Z])", r"\1-\2", list_name).lower()
-        category, name = hyphenated_list.split(".")
-        lists_path = os.path.join(self.PROMPT_LISTS_DIR, f"lists/{category}/{name}.yml")
-        with open(lists_path, "r", encoding="utf-8") as file:
-            content = file.read()
-            list_data = content.split("---")[2].strip().split("\n")
 
-        return list_data
+class PromptListSampler(BasePrompt):
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "list_name": (cls.get_all_available_lists(),),
+                "mode": (["random", "sequential"], {"default": "sequential"}),
+                "number_of_items": ("INT", {"default": 1, "min": 1}),
+                "join_with": ("STRING", {"default": ", "}),
+                "index": (
+                    "INT",
+                    {
+                        "default": 0,
+                        "min": 0,
+                        "max": 0xFFFFFFFFFFFFFFFF,
+                        "control_after_generate": True,
+                    },
+                ),
+                "seed": ("INT", {"default": 0, "min": 0, "max": 0xFFFFFFFFFFFFFFFF}),
+            }
+        }
+
+    RETURN_TYPES = ("STRING",)
+    FUNCTION = "get_item_from_list"
+    CATEGORY = "Prompter"
+
+    def get_item_from_list(
+        self,
+        list_name,
+        index=0,
+        number_of_items=1,
+        mode="sequential",
+        join_with=", ",
+        seed=0,
+    ):
+        random.seed(seed)
+
+        if list_name not in self.all_lists:
+            return f"[{list_name}]"
+
+        if mode == "random":
+            items = random.sample(
+                self.all_lists[list_name],
+                min(number_of_items, len(self.all_lists[list_name])),
+            )
+        else:
+            index = index % len(self.all_lists[list_name])
+            items = self.all_lists[list_name][index : index + number_of_items]
+
+        return (join_with.join(items),)
 
 
 NODE_CLASS_MAPPINGS = {
     "Prompt from template 🪴": PromptFromTemplate,
+    "List sampler 🪴": PromptListSampler,
 }

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-prompter-fofrai"
 description = "A prompt helper for ComfyUI, based on prompter.fofr.ai"
-version = "1.0.0"
+version = "1.0.1"
 license = "LICENSE"
 
 [project.urls]