import httpx

from core_domain import SkillDefinitionContract, SkillRunContract
from core_shared import JSONValue


class SkillServiceClientError(Exception):
    pass


class SkillServiceClient:
    def __init__(self, base_url: str, timeout_seconds: float = 10.0) -> None:
        self.base_url = base_url.rstrip("/")
        self.timeout_seconds = timeout_seconds

    def list_skills(self) -> list[SkillDefinitionContract]:
        try:
            with httpx.Client(timeout=self.timeout_seconds) as client:
                response = client.get(f"{self.base_url}/skills")
                response.raise_for_status()
                return [
                    SkillDefinitionContract.model_validate(item)
                    for item in response.json()
                ]
        except httpx.HTTPError as exc:
            raise SkillServiceClientError(f"skill-service list failed: {exc}") from exc

    def create_skill_run(
        self,
        *,
        skill_id: str,
        skill_version_id: str | None,
        installation_id: str | None,
        input_json: dict[str, JSONValue]) -> SkillRunContract:
        payload: dict[str, JSONValue] = {
            "skill_id": skill_id,
            "input_json": input_json,
        }
        if skill_version_id is not None:
            payload["skill_version_id"] = skill_version_id
        if installation_id is not None:
            payload["installation_id"] = installation_id

        try:
            with httpx.Client(timeout=self.timeout_seconds) as client:
                response = client.post(f"{self.base_url}/skills/runs", json=payload)
                response.raise_for_status()
                return SkillRunContract.model_validate(response.json())
        except httpx.HTTPError as exc:
            raise SkillServiceClientError(f"skill-service create run failed: {exc}") from exc

    def execute_skill_run(
        self,
        *,
        skill_run_id: str,
        worker_key: str | None) -> SkillRunContract:
        payload: dict[str, JSONValue] = {}
        if worker_key is not None:
            payload["worker_key"] = worker_key

        try:
            with httpx.Client(timeout=self.timeout_seconds) as client:
                response = client.post(
                    f"{self.base_url}/skills/runs/{skill_run_id}/execute",
                    json=payload)
                response.raise_for_status()
                return SkillRunContract.model_validate(response.json())
        except httpx.HTTPError as exc:
            raise SkillServiceClientError(f"skill-service execute run failed: {exc}") from exc