import httpx
from core_domain import (
    MemoryCreateContract,
    MemoryItemContract,
    MemorySearchRequestContract,
    MemorySearchResultContract,
)


class MemoryClientError(Exception):
    pass


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

    def create_memory(self, payload: MemoryCreateContract) -> MemoryItemContract:
        try:
            with httpx.Client(timeout=self.timeout_seconds) as client:
                response = client.post(
                    f"{self.base_url}/memories",
                    json=payload.model_dump(mode="json"))
                response.raise_for_status()
                return MemoryItemContract.model_validate(response.json())
        except httpx.HTTPError as exc:
            raise MemoryClientError(f"memory-service create request failed: {exc}") from exc

    def search_memories(
        self,
        payload: MemorySearchRequestContract) -> list[MemorySearchResultContract]:
        try:
            with httpx.Client(timeout=self.timeout_seconds) as client:
                response = client.post(
                    f"{self.base_url}/memories/search",
                    json=payload.model_dump(mode="json"))
                response.raise_for_status()
                return [
                    MemorySearchResultContract.model_validate(item)
                    for item in response.json()
                ]
        except httpx.HTTPError as exc:
            raise MemoryClientError(f"memory-service search request failed: {exc}") from exc