1 files changed, 112 insertions, 0 deletions
diff --git a/girok/commands/task/callbacks.py b/girok/commands/task/callbacks.py
new file mode 100644
index 0000000..364062a
--- /dev/null
+++ b/girok/commands/task/callbacks.py
@@ -0,0 +1,112 @@
+import re
+from datetime import datetime
+from typing import Optional
+
+import typer
+
+from girok.commands.task.utils import decode_date_format, decode_time_format
+from girok.constants import REPETITION_TYPE, TASK_PRIORITY
+
+
+def allow_empty_category_callback(ctx: typer.Context, param: typer.CallbackParam, value: str):
+    if value is None:
+        return None
+
+    if value == "/":
+        return value.rstrip("/")
+
+    if not re.match("^([a-zA-Z0-9]+/)*[a-zA-Z0-9]+/?$", value):
+        raise typer.BadParameter("[Invalid category path] Category path must be in 'xx/yy/zz format.'")
+
+    if value.endswith("/"):
+        value = value[:-1]
+
+    if value == "none":
+        raise typer.BadParameter("Sorry, 'none' is a reserved category name.")
+    return value
+
+
+def not_allow_empty_category_callback(ctx: typer.Context, param: typer.CallbackParam, value: str):
+    if value is None:
+        return None
+
+    if not re.match("^([a-zA-Z0-9]+/)*[a-zA-Z0-9]+/?$", value):
+        raise typer.BadParameter("[Invalid category path] Category path must be in 'xx/yy/zz format.'")
+
+    if value.endswith("/"):
+        value = value[:-1]
+
+    if value == "none":
+        raise typer.BadParameter("Sorry, 'none' is a reserved category name.")
+    return value
+
+
+def datetime_callback(ctx: typer.Context, param: typer.CallbackParam, value: str):
+    if value is None:
+        return None
+    """
+    Check if
+    1. xxx
+    2. xxx@yyy
+    """
+    if "@" not in value:
+        valid, iso_date_str = decode_date_format(value)
+        if not valid:
+            raise typer.BadParameter("Invalid date format")
+        return iso_date_str, None
+    else:
+        date_items = value.split("@")
+        if len(date_items) != 2:
+            raise typer.BadParameter("Invalid date format")
+        date_str, time_str = date_items
+
+        # Validate date
+        valid, iso_date_str = decode_date_format(date_str)
+        if not valid:
+            raise typer.BadParameter("Invalid date format")
+
+        # Validate time
+        valid, iso_time_str = decode_time_format(time_str)
+        if not valid:
+            raise typer.BadParameter("Invalid time format")
+
+        return iso_date_str, iso_time_str
+
+
+def tags_callback(ctx: typer.Context, param: typer.CallbackParam, value: Optional[str]):
+    if value is None:
+        return None
+    is_matched = bool(re.match("^[^,]+(,[^,]+)*$", value))
+    if not is_matched:
+        raise typer.BadParameter("Invalid tags format. You must specify tags separated by comma such as 'A,B,C'")
+    return value
+
+
+def priority_callback(ctx: typer.Context, param: typer.CallbackParam, value: str):
+    if value is None:
+        return None
+
+    if value not in TASK_PRIORITY:
+        raise typer.BadParameter("Priority must be one of 'low', 'medium', 'high'")
+
+    return TASK_PRIORITY[value]
+
+
+def date_callback(ctx: typer.Context, param: typer.CallbackParam, value: str):
+    if value is None:
+        return None
+
+    valid, iso_date_str = decode_date_format(value)
+    if not valid:
+        raise typer.BadParameter("Invalid date format")
+    return iso_date_str
+
+
+def valid_integer_callback(ctx: typer.Context, param: typer.CallbackParam, value: int):
+    if value is None:
+        return None
+
+    if value <= 0:
+        raise typer.BadParameter("The time window must be a positive integer")
+
+    return value