from dataclasses import dataclass

from cdk8s import Chart, ApiObject, ApiObjectMetadata

from constructs import Construct

from cdk8s_utils import cli


@dataclass
## defaults can be overriden at runtime by providing a config.yaml file with the --config flag
# for example:
# --- !Config
# image: "nginx:notlatest"
#
class Config:
    image: str = "nginx:latest"

# our actual cdk8s Chart subclass, all Config class attribuates are available for templating the manifests as needed
class ExampleChart(Chart):
    def __init__(
        self,
        scope: Construct,
        id: str,
        config: Config,
    ):
        labels = {"app": id}
        super().__init__(scope, id, disable_resource_name_hashes=True, labels=labels)
        ApiObject(
            self,
            id="test-resource",
            api_version="v1alpha1",
            kind="TestResource",
            metadata=ApiObjectMetadata(name="test", labels={"image": config.image}),
        )
        self.config = config

# main script simply executes the cli.run() function to synthesize our manifests to both stdout and the default `dist/` path
# a --help flag is available for more info on cli usage options
if __name__ == "__main__":
    cli.run(Config, ExampleChart, cli_args=None)