Add alga app pick command (#85)

Similar to the other "pick" commands, this allows you to easily pick an app to
launch.

src/alga/cli_app.py

@@ -1,12 +1,14 @@
 import json
 from typing import Annotated, Optional
 
+from pzp import pzp
 from rich import print
 from rich.console import Console
 from rich.table import Table
 from typer import Argument, Typer
 
 from alga import client
+from alga.types import App
 
 
 app = Typer(no_args_is_help=True, help="Apps installed on the TV")
@@ -72,3 +74,18 @@ def list() -> None:
 
     console = Console()
     console.print(table)
+
+
+@app.command()
+def pick() -> None:
+    """Show picker for selecting an app."""
+
+    response = client.request("ssap://com.webos.applicationManager/listApps")
+    apps = []
+
+    for app in response["apps"]:
+        apps.append(App(app))
+
+    app = pzp(candidates=apps, fullscreen=False, layout="reverse")
+    if app:
+        client.request("ssap://system.launcher/launch", {"id": app.id_})

src/alga/types.py

@@ -2,6 +2,19 @@
 from typing import Any
 
 
+@dataclass
+class App:
+    id_: str
+    name: str
+
+    def __init__(self, app: dict[str, Any]) -> None:
+        self.id_ = app["id"]
+        self.name = app["title"]
+
+    def __str__(self) -> str:
+        return f"{self.name} ({self.id_})"
+
+
 @dataclass
 class Channel:
     id_: str

tests/test_cli_app.py

@@ -1,10 +1,11 @@
 import json
-from unittest.mock import MagicMock
+from unittest.mock import MagicMock, call, patch
 
 from faker import Faker
 from typer.testing import CliRunner
 
 from alga.__main__ import app
+from alga.types import App
 
 
 runner = CliRunner()
@@ -95,3 +96,28 @@ def test_info(faker: Faker, mock_request: MagicMock) -> None:
     )
     assert result.exit_code == 0
     assert result.stdout == f"{app_info}\n"
+
+
+def test_pick(faker: Faker, mock_request: MagicMock) -> None:
+    return_value = {
+        "apps": [
+            {"id": faker.pystr(), "title": faker.pystr()},
+            {"id": faker.pystr(), "title": faker.pystr()},
+            {"id": faker.pystr(), "title": faker.pystr()},
+        ]
+    }
+    mock_request.return_value = return_value
+    first_app = return_value["apps"][0]
+
+    with patch("alga.cli_app.pzp") as mock_pzp:
+        mock_pzp.return_value = App(first_app)
+
+        result = runner.invoke(app, ["app", "pick"])
+
+    mock_request.assert_has_calls(
+        [
+            call("ssap://com.webos.applicationManager/listApps"),
+            call("ssap://system.launcher/launch", {"id": first_app["id"]}),
+        ]
+    )
+    assert result.exit_code == 0

tests/test_types.py

@@ -1,24 +1,29 @@
 from faker import Faker
 
-from alga.types import Channel, InputDevice, SoundOutputDevice
+from alga.types import App, Channel, InputDevice, SoundOutputDevice
+
+
+def test_app(faker: Faker) -> None:
+    id_, title = faker.pystr(), faker.pystr()
+    app = App({"id": id_, "title": title})
+
+    assert str(app) == f"{title} ({id_})"
 
 
 def test_channel(faker: Faker) -> None:
+    number, name = faker.pystr(), faker.pystr()
     channel = Channel(
-        {
-            "channelId": faker.pystr(),
-            "channelNumber": faker.pystr(),
-            "channelName": faker.pystr(),
-        }
+        {"channelId": faker.pystr(), "channelNumber": number, "channelName": name}
     )
 
-    assert str(channel) == f"{channel.number}: {channel.name}"
+    assert str(channel) == f"{number}: {name}"
 
 
 def test_input_device(faker: Faker) -> None:
-    input_device = InputDevice({"id": faker.pystr(), "label": faker.pystr()})
+    id_, name = faker.pystr(), faker.pystr()
+    input_device = InputDevice({"id": id_, "label": name})
 
-    assert str(input_device) == f"{input_device.name} ({input_device.id_})"
+    assert str(input_device) == f"{name} ({id_})"
 
 
 def test_sound_output_device(faker: Faker) -> None:

usage.md

@@ -66,6 +66,7 @@ $ alga app [OPTIONS] COMMAND [ARGS]...
 * `info`: Show info about specific app
 * `launch`: Launch an app
 * `list`: List installed apps
+* `pick`: Show picker for selecting an app.
 
 ### `alga app close`
 
@@ -150,6 +151,20 @@ $ alga app list [OPTIONS]
 
 * `--help`: Show this message and exit.
 
+### `alga app pick`
+
+Show picker for selecting an app.
+
+**Usage**:
+
+```console
+$ alga app pick [OPTIONS]
+```
+
+**Options**:
+
+* `--help`: Show this message and exit.
+
 ## `alga channel`
 
 TV channels