"""Client for the management-routes e2e suite: the shared ProxyClient plus the
key/team/user/organization writes, the info/list read-backs the tests assert,
and the raw-status calls judged by HTTP outcome (chat under a scoped key, an
llm-only key hitting a management route).
"""

from __future__ import annotations

import time
from dataclasses import dataclass

import jwt

from e2e_config import MASTER_KEY
from proxy_client import ProxyClient
from e2e_http import (
    AuthHeaders,
    NetworkError,
    NoBody,
    ProbeResult,
    Result,
    StreamingResponse,
    Success,
    UnknownApiError,
    unwrap,
)
from models import (
    ChatBody,
    ChatMessage,
    ConnectionTestBody,
    ConnectionTestResponse,
    CustomerDeleteBody,
    CustomerInfoParams,
    CustomerNewBody,
    CustomerResponse,
    KeyBlockBody,
    KeyDeleteBody,
    KeyGenerateBody,
    KeyGenerateResponse,
    KeyListParams,
    KeyListResponse,
    KeyRegenerateBody,
    KeyUpdateBody,
    ModelDeleteBody,
    OrgDeleteBody,
    OrgInfoParams,
    OrgInfoResponse,
    OrgNewBody,
    OrgNewResponse,
    OrgUpdateBody,
    TagDeleteBody,
    TagListEntry,
    TagListResponse,
    TagNewBody,
    TeamData,
    TeamDeleteBody,
    TeamInfoParams,
    TeamInfoResponse,
    TeamListResponse,
    TeamMemberAddBody,
    TeamMemberDeleteBody,
    TeamMemberEntry,
    TeamNewBody,
    TeamNewResponse,
    TeamUpdateBody,
    UiLoginBody,
    UiLoginResponse,
    UiSessionClaims,
    UserDeleteBody,
    UserDeleteResponse,
    UserInfoParams,
    UserInfoResponse,
    UserListParams,
    UserListResponse,
    UserNewBody,
    UserNewResponse,
    UserUpdateBody,
)

MODEL_ACCESS_DENIED_MARKER = "key_model_access_denied"
ROUTE_NOT_ALLOWED_MARKER = "not allowed to call this route"
DASHBOARD_SESSION_TEAM_ID = "litellm-dashboard"
_TEAM_READY_ATTEMPTS = 15
_TEAM_READY_SLEEP_SECONDS = 0.4
_KEY_WRITE_ATTEMPTS = 5
_TRANSIENT_BACKEND_MARKERS = ("connecting to redis", "name resolution")


@dataclass(frozen=True, slots=True)
class DashboardSession:
    """What a dashboard sign-in hands the Admin UI: the session key it sends as
    its bearer on every subsequent call, the claims it renders the signed-in user
    from, and where it lands the browser."""

    session_key: str
    claims: UiSessionClaims
    redirect_url: str


@dataclass(frozen=True, slots=True)
class ManagementClient:
    proxy: ProxyClient
    master_key: str

    def llm_only_key(self) -> str:
        return self.proxy.generate_key(KeyGenerateBody(models=[], allowed_routes=["llm_api_routes"]))

    def generate_key(self, body: KeyGenerateBody, *, caller_key: str | None = None) -> Result[KeyGenerateResponse]:
        """POST /key/generate. `caller_key` is who is creating the key: the master
        key by default, or a virtual key (an admin filling in Create New Key on the
        dashboard creates it under the session key their sign-in minted). Returns
        the outcome rather than unwrapping it, so a caller can poll a route that is
        only transiently refusing."""
        headers = self.proxy.transport.master if caller_key is None else self.proxy.transport.bearer(caller_key)
        return self.proxy.transport.post(
            "/key/generate",
            headers=headers,
            json=body,
            response_type=KeyGenerateResponse,
        )

    def update_key(self, body: KeyUpdateBody, *, caller_key: str | None = None) -> Result[NoBody]:
        """POST /key/update. `caller_key` is who is editing: the master key by
        default, or a virtual key (the dashboard edits under the session key its
        sign-in minted, never the master key). Returns the outcome rather than
        unwrapping it, so a caller can poll a route that is only transiently
        refusing; `update_key_models` is the unwrapping shorthand."""
        headers = self.proxy.transport.master if caller_key is None else self.proxy.transport.bearer(caller_key)
        last: Result[NoBody] = NetworkError(message="/key/update was never attempted")
        for attempt in range(_KEY_WRITE_ATTEMPTS):
            last = self.proxy.transport.post(
                "/key/update",
                headers=headers,
                json=body,
                response_type=NoBody,
            )
            match last:
                case UnknownApiError(body=error_body) if any(
                    marker in error_body.lower() for marker in _TRANSIENT_BACKEND_MARKERS
                ):
                    time.sleep(0.5 * (attempt + 1))
                    continue
                case _:
                    break
        return last

    def update_key_models(self, key: str, models: list[str]) -> None:
        _ = unwrap(self.update_key(KeyUpdateBody(key=key, models=models)))

    def delete_key_strict(self, key: str) -> None:
        """Strict delete for the act phase of a test: a failed delete is a hard
        failure, unlike the warn-only ProxyClient.delete_key used at teardown."""
        _ = unwrap(
            self.proxy.transport.post(
                "/key/delete",
                headers=self.proxy.transport.master,
                json=KeyDeleteBody(keys=[key]),
                response_type=NoBody,
            )
        )

    def delete_model_strict(self, model_id: str) -> None:
        """Strict delete for the act phase of a test: a failed delete is a hard
        failure, unlike the warn-only ProxyClient.delete_model used at teardown."""
        _ = unwrap(
            self.proxy.transport.post(
                "/model/delete",
                headers=self.proxy.transport.master,
                json=ModelDeleteBody(id=model_id),
                response_type=NoBody,
            )
        )

    def connection_test(self, body: ConnectionTestBody) -> Result[ConnectionTestResponse]:
        """POST /health/test_connection, the call behind the Admin UI's Test
        Connection button, probing the live provider with the supplied params."""
        return self.proxy.transport.post(
            "/health/test_connection",
            headers=self.proxy.transport.master,
            json=body,
            response_type=ConnectionTestResponse,
            timeout=120.0,
        )

    def block_key(self, key: str) -> None:
        _ = unwrap(
            self.proxy.transport.post(
                "/key/block",
                headers=self.proxy.transport.master,
                json=KeyBlockBody(key=key),
                response_type=NoBody,
            )
        )
    def regenerate_key(self, key: str) -> str:
        return unwrap(
            self.proxy.transport.post(
                "/key/regenerate",
                headers=self.proxy.transport.master,
                json=KeyRegenerateBody(key=key),
                response_type=KeyGenerateResponse,
            )
        ).key

    def key_list(self, key_alias: str, *, caller_key: str | None = None) -> Result[KeyListResponse]:
        """GET /key/list, the Virtual Keys page's own inventory call. `caller_key` is
        who is asking: the master key by default, or a virtual key."""
        headers = self.proxy.transport.master if caller_key is None else self.proxy.transport.bearer(caller_key)
        return self.proxy.transport.get(
            "/key/list",
            headers=headers,
            params=KeyListParams(key_alias=key_alias),
            response_type=KeyListResponse,
        )

    def key_alias_count(self, key_alias: str) -> int:
        return unwrap(self.key_list(key_alias)).total_count

    def dashboard_login(self, username: str, password: str) -> DashboardSession:
        """POST /v2/login, the call the Admin UI's sign-in form makes.

        The proxy authenticates the credentials, mints a UI session key for the
        signed-in user, and hands it back inside a JWT signed with the master key.
        Decoding that JWT is the only way to reach the session key, and it is what
        the dashboard itself does before it can call a single management route."""
        response = unwrap(
            self.proxy.transport.post(
                "/v2/login",
                headers=AuthHeaders(),
                json=UiLoginBody(username=username, password=password),
                response_type=UiLoginResponse,
            )
        )
        decoded: object = jwt.decode(response.token, self.master_key, algorithms=["HS256"])
        claims = UiSessionClaims.model_validate(decoded)
        return DashboardSession(
            session_key=claims.key,
            claims=claims,
            redirect_url=response.redirect_url,
        )

    def create_team(self, body: TeamNewBody) -> str:
        team_id = unwrap(
            self.proxy.transport.post(
                "/team/new",
                headers=self.proxy.transport.master,
                json=body,
                response_type=TeamNewResponse,
            )
        ).team_id
        self._wait_for_team(team_id)
        return team_id

    def update_team(self, body: TeamUpdateBody) -> None:
        last: Result[NoBody] | None = None
        for attempt in range(5):
            last = self.proxy.transport.post(
                "/team/update",
                headers=self.proxy.transport.master,
                json=body,
                response_type=NoBody,
            )
            match last:
                case Success():
                    return
                case UnknownApiError(body=body_text) if (
                    "connecting to redis" in body_text.lower() or "name resolution" in body_text.lower()
                ):
                    time.sleep(0.5 * (attempt + 1))
                    continue
                case _:
                    break
        assert last is not None
        raise AssertionError(last)

    def delete_team(self, team_id: str) -> None:
        _ = self.proxy.transport.post(
            "/team/delete",
            headers=self.proxy.transport.master,
            json=TeamDeleteBody(team_ids=[team_id]),
            response_type=NoBody,
        )

    def team_info(self, team_id: str) -> TeamData:
        return unwrap(
            self.proxy.transport.get(
                "/team/info",
                headers=self.proxy.transport.master,
                params=TeamInfoParams(team_id=team_id),
                response_type=TeamInfoResponse,
            )
        ).team_info

    def team_list_ids(self) -> tuple[str, ...]:
        return tuple(
            entry.team_id
            for entry in unwrap(
                self.proxy.transport.get(
                    "/team/list",
                    headers=self.proxy.transport.master,
                    params=NoBody(),
                    response_type=TeamListResponse,
                )
            ).root
        )

    def team_info_status(self, team_id: str) -> ProbeResult:
        return self.proxy.transport.probe("/team/info", params=TeamInfoParams(team_id=team_id))

    def _wait_for_team(self, team_id: str) -> None:
        last: Result[TeamInfoResponse] | None = None
        for _ in range(_TEAM_READY_ATTEMPTS):
            last = self.proxy.transport.get(
                "/team/info",
                headers=self.proxy.transport.master,
                params=TeamInfoParams(team_id=team_id),
                response_type=TeamInfoResponse,
            )
            match last:
                case Success():
                    return
                case _:
                    time.sleep(_TEAM_READY_SLEEP_SECONDS)
        assert last is not None
        raise AssertionError(last)

    def add_team_member(self, team_id: str, user_id: str) -> None:
        last: Result[NoBody] | None = None
        for attempt in range(_TEAM_READY_ATTEMPTS):
            last = self.proxy.transport.post(
                "/team/member_add",
                headers=self.proxy.transport.master,
                json=TeamMemberAddBody(team_id=team_id, member=TeamMemberEntry(role="user", user_id=user_id)),
                response_type=NoBody,
            )
            match last:
                case Success():
                    return
                case UnknownApiError(body=body) if (
                    "doesn't exist" in body and attempt + 1 < _TEAM_READY_ATTEMPTS
                ):
                    time.sleep(_TEAM_READY_SLEEP_SECONDS)
                    continue
                case _:
                    break
        assert last is not None
        raise AssertionError(last)

    def delete_team_member(self, team_id: str, user_id: str) -> None:
        _ = unwrap(
            self.proxy.transport.post(
                "/team/member_delete",
                headers=self.proxy.transport.master,
                json=TeamMemberDeleteBody(team_id=team_id, user_id=user_id),
                response_type=NoBody,
            )
        )

    def create_user(self, body: UserNewBody) -> str:
        return unwrap(
            self.proxy.transport.post(
                "/user/new",
                headers=self.proxy.transport.master,
                json=body,
                response_type=UserNewResponse,
            )
        ).user_id

    def create_customer(self, user_id: str) -> str:
        _ = unwrap(
            self.proxy.transport.post(
                "/customer/new",
                headers=self.proxy.transport.master,
                json=CustomerNewBody(user_id=user_id),
                response_type=CustomerResponse,
            )
        )
        return user_id

    def customer_info(self, end_user_id: str) -> CustomerResponse:
        return unwrap(
            self.proxy.transport.get(
                "/customer/info",
                headers=self.proxy.transport.master,
                params=CustomerInfoParams(end_user_id=end_user_id),
                response_type=CustomerResponse,
            )
        )

    def delete_customer(self, user_id: str) -> None:
        _ = self.proxy.transport.post(
            "/customer/delete",
            headers=self.proxy.transport.master,
            json=CustomerDeleteBody(user_ids=[user_id]),
            response_type=NoBody,
        )

    def update_user(self, body: UserUpdateBody) -> None:
        _ = unwrap(
            self.proxy.transport.post(
                "/user/update",
                headers=self.proxy.transport.master,
                json=body,
                response_type=NoBody,
            )
        )

    def delete_user(self, user_id: str) -> None:
        _ = self.proxy.transport.post(
            "/user/delete",
            headers=self.proxy.transport.master,
            json=UserDeleteBody(user_ids=[user_id]),
            response_type=NoBody,
        )

    def delete_user_strict(self, user_id: str) -> None:
        """Strict delete for the act phase of a test: a failed delete is a hard
        failure, unlike the warn-only delete_user used at teardown."""
        _ = unwrap(
            self.proxy.transport.post(
                "/user/delete",
                headers=self.proxy.transport.master,
                json=UserDeleteBody(user_ids=[user_id]),
                response_type=UserDeleteResponse,
            )
        )

    def user_info(self, user_id: str) -> UserInfoResponse:
        return unwrap(
            self.proxy.transport.get(
                "/user/info",
                headers=self.proxy.transport.master,
                params=UserInfoParams(user_id=user_id),
                response_type=UserInfoResponse,
            )
        )

    def user_count(self, user_id: str) -> int:
        return unwrap(
            self.proxy.transport.get(
                "/user/list",
                headers=self.proxy.transport.master,
                params=UserListParams(user_ids=user_id),
                response_type=UserListResponse,
            )
        ).total

    def user_list_ids(self, user_id: str) -> tuple[str, ...]:
        listing = unwrap(
            self.proxy.transport.get(
                "/user/list",
                headers=self.proxy.transport.master,
                params=UserListParams(user_ids=user_id),
                response_type=UserListResponse,
            )
        )
        return tuple(row.user_id for row in listing.users)

    def create_org(self, body: OrgNewBody) -> str:
        return unwrap(
            self.proxy.transport.post(
                "/organization/new",
                headers=self.proxy.transport.master,
                json=body,
                response_type=OrgNewResponse,
            )
        ).organization_id

    def update_org(self, body: OrgUpdateBody) -> None:
        _ = unwrap(
            self.proxy.transport.patch(
                "/organization/update",
                headers=self.proxy.transport.master,
                json=body,
                response_type=NoBody,
            )
        )

    def delete_org(self, organization_id: str) -> None:
        _ = self.proxy.transport.delete(
            "/organization/delete",
            headers=self.proxy.transport.master,
            json=OrgDeleteBody(organization_ids=[organization_id]),
            response_type=NoBody,
        )

    def org_info(self, organization_id: str) -> OrgInfoResponse:
        return unwrap(
            self.proxy.transport.get(
                "/organization/info",
                headers=self.proxy.transport.master,
                params=OrgInfoParams(organization_id=organization_id),
                response_type=OrgInfoResponse,
            )
        )

    def org_info_status(self, organization_id: str) -> ProbeResult:
        return self.proxy.transport.probe("/organization/info", params=OrgInfoParams(organization_id=organization_id))
    def create_tag(self, body: TagNewBody) -> None:
        _ = unwrap(
            self.proxy.transport.post(
                "/tag/new",
                headers=self.proxy.transport.master,
                json=body,
                response_type=NoBody,
            )
        )

    def delete_tag(self, name: str) -> None:
        _ = self.proxy.transport.post(
            "/tag/delete",
            headers=self.proxy.transport.master,
            json=TagDeleteBody(name=name),
            response_type=NoBody,
        )

    def tag_list(self) -> tuple[TagListEntry, ...]:
        return tuple(
            unwrap(
                self.proxy.transport.get(
                    "/tag/list",
                    headers=self.proxy.transport.master,
                    params=NoBody(),
                    response_type=TagListResponse,
                )
            ).root
        )

    def chat_status(self, key: str, model: str, content: str) -> StreamingResponse:
        return self.proxy.transport.send(
            "/chat/completions",
            headers=self.proxy.transport.bearer(key),
            json=ChatBody(model=model, messages=[ChatMessage(role="user", content=content)], max_tokens=16),
        )

    def key_generate_status(self, key: str, body: KeyGenerateBody) -> StreamingResponse:
        return self.proxy.transport.send("/key/generate", headers=self.proxy.transport.bearer(key), json=body)

    def team_new_status(self, key: str, body: TeamNewBody) -> StreamingResponse:
        return self.proxy.transport.send("/team/new", headers=self.proxy.transport.bearer(key), json=body)

    def user_new_status(self, key: str, body: UserNewBody) -> StreamingResponse:
        return self.proxy.transport.send("/user/new", headers=self.proxy.transport.bearer(key), json=body)


def build_client(proxy: ProxyClient) -> ManagementClient:
    return ManagementClient(proxy=proxy, master_key=MASTER_KEY)