cli: deduplicate typical messages

find_work/cli/__init__.py

@@ -8,6 +8,7 @@ import threading
 from collections.abc import Generator
 from contextlib import contextmanager
 from dataclasses import field
+from enum import Enum, auto
 from typing import Any
 
 import click
@@ -73,6 +74,16 @@ class BugzillaOptions:
     chronological_sort: bool = False
 
 
+class Message(Enum):
+    """ Typical messages. """
+    CACHE_READ = auto()
+    CACHE_LOAD = auto()
+    CACHE_WRITE = auto()
+
+    EMPTY_RESPONSE = auto()
+    NO_WORK = auto()
+
+
 @dataclass
 class Options:
     """ Global options. """
@@ -116,3 +127,24 @@ class Options:
         """
         kwargs.pop("color", None)
         click.secho(*args, color=self.colors, **kwargs)  # type: ignore
+
+    def say(self, msgid: Message) -> None:
+        """
+        Output one of pre-configured messages to the terminal.
+
+        :param msgid: message type
+        """
+        match msgid:
+            case Message.CACHE_LOAD:
+                self.vecho("Checking for cached data", nl=False, err=True)
+            case Message.CACHE_READ:
+                self.vecho("Reading cached data", nl=False, err=True)
+            case Message.CACHE_WRITE:
+                self.vecho("Caching data", nl=False, err=True)
+            case Message.EMPTY_RESPONSE:
+                self.secho("Hmmm, no data returned. Try again with different "
+                           "arguments.", fg="yellow")
+            case Message.NO_WORK:
+                self.secho("Congrats! You have nothing to do!", fg="green")
+            case _:
+                raise TypeError(f"Unknown message identifier: {msgid}")

find_work/cli/bugzilla.py

@@ -41,7 +41,7 @@ import click
 import gentoopm
 from tabulate import tabulate
 
-from find_work.cli import Options, ProgressDots
+from find_work.cli import Message, Options, ProgressDots
 from find_work.constants import BUGZILLA_URL
 from find_work.types import BugView
 from find_work.utils import (
@@ -145,12 +145,12 @@ def outdated(options: Options) -> None:
     options.cache_key.feed("outdated")
     dots = ProgressDots(options.verbose)
 
-    options.vecho("Checking for cached data", nl=False, err=True)
+    options.say(Message.CACHE_LOAD)
     with dots():
         cached_data = read_json_cache(options.cache_key,
                                       object_hook=as_datetime)
     if cached_data is not None:
-        options.vecho("Loading cached data", nl=False, err=True)
+        options.say(Message.CACHE_READ)
         with dots():
             data = _bugs_from_json(cached_data)
     else:
@@ -158,16 +158,15 @@ def outdated(options: Options) -> None:
         with dots():
             data = _fetch_bump_requests(options)
         if len(data) == 0:
-            options.secho("Hmmm, no data returned. Try again with "
-                          "different arguments.", fg="yellow")
+            options.say(Message.EMPTY_RESPONSE)
             return
-        options.vecho("Caching data", nl=False, err=True)
+        options.say(Message.CACHE_WRITE)
         with dots():
             json_data = _bugs_to_json(data)
             write_json_cache(json_data, options.cache_key, cls=BugEncoder)
 
     bumps = _collect_bump_requests(data, options)
-    if len(bumps) == 0:
-        options.secho("Congrats! You have nothing to do!", fg="green")
-    else:
+    if len(bumps) != 0:
         options.echo(tabulate(bumps, tablefmt="plain"))  # type: ignore
+    else:
+        options.say(Message.NO_WORK)

find_work/cli/repology.py

@@ -16,7 +16,7 @@ from pydantic import RootModel
 from repology_client.types import Package
 from sortedcontainers import SortedSet
 
-from find_work.cli import Options, ProgressDots
+from find_work.cli import Message, Options, ProgressDots
 from find_work.types import VersionBump
 from find_work.utils import (
     aiohttp_session,
@@ -87,11 +87,11 @@ def _collect_version_bumps(data: Iterable[set[Package]],
 async def _outdated(options: Options) -> None:
     dots = ProgressDots(options.verbose)
 
-    options.vecho("Checking for cached data", nl=False, err=True)
+    options.say(Message.CACHE_LOAD)
     with dots():
         cached_data = read_json_cache(options.cache_key)
     if cached_data is not None:
-        options.vecho("Loading cached data", nl=False, err=True)
+        options.say(Message.CACHE_READ)
         with dots():
             data = _projects_from_json(cached_data)
     else:
@@ -100,10 +100,9 @@ async def _outdated(options: Options) -> None:
             with dots():
                 data = await _fetch_outdated(options)
         except repology_client.exceptions.EmptyResponse:
-            options.secho("Hmmm, no data returned. Try again with different "
-                          "arguments.", fg="yellow")
+            options.say(Message.EMPTY_RESPONSE)
             return
-        options.vecho("Caching data", nl=False, err=True)
+        options.say(Message.CACHE_WRITE)
         with dots():
             json_data = _projects_to_json(data)
             write_json_cache(json_data, options.cache_key)
@@ -116,7 +115,7 @@ async def _outdated(options: Options) -> None:
         options.secho(bump.new_version, fg="green")
 
     if len(outdated_set) == 0:
-        options.secho("Congrats! You have nothing to do!", fg="green")
+        options.say(Message.NO_WORK)
 
 
 @click.command()