import logging
import time
from typing import Any, List

import httpx
from fastapi import APIRouter, BackgroundTasks, Depends, Query
from fastapi.responses import HTMLResponse
from sqlalchemy.orm import Session

from ...errors import ClanError
from .. import sql_crud, sql_db, sql_models
from ..schemas import (
    Entity,
    EntityCreate,
    Eventmessage,
    EventmessageCreate,
    Resolution,
    Role,
    Service,
    ServiceCreate,
    ServiceUsageCreate,
)
from ..tags import Tags

router = APIRouter()

log = logging.getLogger(__name__)


# API Endpoints for all tables
# see the default api documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/DefaultApi.md


#########################
#                       #
#        Service        #
#                       #
#########################
# see the corresponding documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/Service.md
### pkgs/clan-cli/tests/openapi_client/docs/ServiceCreate.md
### pkgs/clan-cli/tests/openapi_client/docs/ServiceUsageCreate.md
### pkgs/clan-cli/tests/openapi_client/docs/ServicesApi.md
@router.post("/api/v1/service", response_model=Service, tags=[Tags.services])
def create_service(
    service: ServiceCreate, db: Session = Depends(sql_db.get_db)
) -> Service:
    services = sql_crud.create_service(db=db, service=service)
    return services


@router.post("/api/v1/service_usage", response_model=Service, tags=[Tags.services])
def add_service_usage(
    usage: ServiceUsageCreate,
    service_uuid: str = "bdd640fb-0667-1ad1-1c80-317fa3b1799d",
    db: Session = Depends(sql_db.get_db),
) -> Service:
    service = sql_crud.add_service_usage(db, service_uuid, usage)
    return service


@router.put("/api/v1/inc_service_usage", response_model=Service, tags=[Tags.services])
def inc_service_usage(
    usage: ServiceUsageCreate,
    consumer_entity_did: str = "did:sov:test:120",
    service_uuid: str = "bdd640fb-0667-1ad1-1c80-317fa3b1799d",
    db: Session = Depends(sql_db.get_db),
) -> Service:
    service = sql_crud.increment_service_usage(db, service_uuid, consumer_entity_did)
    return service


@router.put("/api/v1/service", response_model=Service, tags=[Tags.services])
def update_service(
    service: ServiceCreate,
    uuid: str = "bdd640fb-0667-1ad1-1c80-317fa3b1799d",
    db: Session = Depends(sql_db.get_db),
) -> Service:
    service = sql_crud.set_service(db, uuid, service)
    return service


@router.get("/api/v1/services", response_model=List[Service], tags=[Tags.services])
def get_all_services(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[sql_models.Service]:
    services = sql_crud.get_services(db, skip=skip, limit=limit)
    return services


@router.get(
    "/api/v1/service_by_did", response_model=List[Service], tags=[Tags.services]
)
def get_service_by_did(
    entity_did: str = "did:sov:test:120",
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(sql_db.get_db),
) -> List[sql_models.Service]:
    service = sql_crud.get_services_by_entity_did(db, entity_did=entity_did)
    return service


@router.get("/api/v1/service", response_model=Service, tags=[Tags.services])
def get_service_by_uuid(
    uuid: str = "bdd640fb-0667-1ad1-1c80-317fa3b1799d",
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(sql_db.get_db),
) -> sql_models.Service:
    service = sql_crud.get_service_by_uuid(db, uuid=uuid)
    if service is None:
        raise ClanError(f"Service with uuid '{uuid}' not found")
    return service


@router.get(
    "/api/v1/services_without_entity",
    response_model=List[Service],
    tags=[Tags.services],
)
def get_services_without_entity(
    entity_did: str = "did:sov:test:120",
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(sql_db.get_db),
) -> List[sql_models.Service]:
    service = sql_crud.get_services_without_entity_id(db, entity_did=entity_did)
    return service


@router.delete("/api/v1/service", tags=[Tags.services])
def delete_service(
    entity_did: str = "did:sov:test:120",
    db: Session = Depends(sql_db.get_db),
) -> dict[str, str]:
    sql_crud.delete_service_by_entity_did(db, entity_did)
    return {"message": "service deleted"}


#########################
#                       #
#        Entity         #
#                       #
#########################
# see the corresponding documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/Entity.md
### pkgs/clan-cli/tests/openapi_client/docs/EntityCreate.md
### pkgs/clan-cli/tests/openapi_client/docs/EntitiesApi.md
@router.post("/api/v1/entity", response_model=Entity, tags=[Tags.entities])
def create_entity(
    entity: EntityCreate, db: Session = Depends(sql_db.get_db)
) -> sql_models.Entity:
    return sql_crud.create_entity(db, entity)


@router.get(
    "/api/v1/entity_by_roles", response_model=List[Entity], tags=[Tags.entities]
)
def get_entity_by_roles(
    roles: List[Role] = Query(...), db: Session = Depends(sql_db.get_db)
) -> List[sql_models.Entity]:
    entity = sql_crud.get_entity_by_role(db, roles=roles)
    return entity


@router.get("/api/v1/entities", response_model=List[Entity], tags=[Tags.entities])
def get_all_entities(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[sql_models.Entity]:
    entities = sql_crud.get_entities(db, skip=skip, limit=limit)
    return entities


@router.get("/api/v1/entity", response_model=Entity, tags=[Tags.entities])
def get_entity_by_did(
    entity_did: str = "did:sov:test:120",
    db: Session = Depends(sql_db.get_db),
) -> sql_models.Entity:
    entity = sql_crud.get_entity_by_name_or_did(db, name=entity_did)
    if entity is None:
        raise ClanError(f"Entity with did '{entity_did}' not found")
    return entity


@router.get(
    "/api/v1/attached_entities",
    response_model=List[Entity],
    tags=[Tags.entities],
)
def get_attached_entities(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[sql_models.Entity]:
    entities = sql_crud.get_attached_entities(db, skip=skip, limit=limit)
    return entities


@router.put("/api/v1/detach", tags=[Tags.entities])
def detach_entity(
    background_tasks: BackgroundTasks,
    entity_did: str = "did:sov:test:120",
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(sql_db.get_db),
) -> dict[str, str]:
    sql_crud.set_stop_health_task(db, entity_did, True)
    return {"message": f"Detached {entity_did} successfully"}


@router.put("/api/v1/attach", tags=[Tags.entities])
def attach_entity(
    background_tasks: BackgroundTasks,
    entity_did: str = "did:sov:test:120",
    skip: int = 0,
    limit: int = 100,
    db: Session = Depends(sql_db.get_db),
) -> dict[str, str]:
    entity = sql_crud.get_entity_by_did(db, did=entity_did)
    if entity is None:
        raise ClanError(f"Entity with did '{entity_did}' not found")
    url = f"http://{entity.ip}/health"
    sql_crud.set_stop_health_task(db, entity_did, False)
    print("Start health query at", url)
    background_tasks.add_task(attach_entity_loc, db, entity_did)
    return {"message": f"Started attachment task for {entity.name}"}


@router.get("/api/v1/is_attached", tags=[Tags.entities])
def is_attached(
    entity_did: str = "did:sov:test:120", db: Session = Depends(sql_db.get_db)
) -> dict[str, str]:
    entity = sql_crud.get_entity_by_did(db, did=entity_did)

    if entity is None:
        raise ClanError(f"Entity with did '{entity_did}' not found")

    timer = 0.0
    timeout = 2
    while not entity.attached:
        time.sleep(0.1)

        timer += 0.1
        if timer > timeout:
            url = f"http://{entity.ip}"
            raise ClanError(f"Entity at {url} not reachable")

        db.refresh(entity)
    return {"message": f"Attached to {entity.name} successfully"}


def attach_entity_loc(db: Session, entity_did: str) -> None:
    entity = sql_crud.get_entity_by_did(db, did=entity_did)
    try:
        assert entity is not None
        url = f"http://{entity.ip}/health"

        while entity.stop_health_task is False:
            response = httpx.get(url, timeout=2)
            if response.status_code != 200:
                raise ClanError(
                    f"Entity with did '{entity_did}' returned {response.status_code}"
                )

            if entity.attached is False:
                sql_crud.set_attached_by_entity_did(db, entity_did, True)
            if entity is None:
                raise ClanError(f"Entity with did '{entity_did}' has been deleted")

            time.sleep(1)
            db.refresh(entity)
    except Exception:
        print(f"Entity {entity_did} not reachable at {url}")
    finally:
        sql_crud.set_attached_by_entity_did(db, entity_did, False)
        sql_crud.set_stop_health_task(db, entity_did, False)


@router.delete("/api/v1/entity", tags=[Tags.entities])
def delete_entity(
    entity_did: str = "did:sov:test:120",
    db: Session = Depends(sql_db.get_db),
) -> dict[str, str]:
    sql_crud.delete_entity_by_did_recursive(db, did=entity_did)
    return {"message": "Entity deleted and all relations to that entity"}


def get_rpc_by_role(db: Session, role: Role, path: str) -> Any:
    matching_entities = sql_crud.get_entity_by_role(db, roles=[role])
    if matching_entities is None:
        raise ClanError(f"No {role} found")
    if len(matching_entities) > 1:
        raise ClanError(f"More than one {role} found")
    if len(matching_entities) == 0:
        raise ClanError(f"No {role} found")
    dlg = matching_entities[0]

    url = f"http://{dlg.ip}/{path}"
    try:
        response = httpx.get(url, timeout=2)
    except httpx.HTTPError as e:
        raise ClanError(f"{role} not reachable at {url}") from e

    if response.status_code != 200:
        raise ClanError(f"{role} returned {response.status_code}")

    return response.json()


#########################
#                       #
#      Resolution       #
#                       #
#########################
# see the corresponding documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/Resolution.md
### pkgs/clan-cli/tests/openapi_client/docs/ResolutionApi.md
@router.get(
    "/api/v1/resolutions", response_model=List[Resolution], tags=[Tags.resolutions]
)
def get_all_resolutions(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[Resolution]:
    return get_rpc_by_role(db, Role("DLG"), "dlg_list_of_did_resolutions")


#########################
#                       #
#      Repository       #
#                       #
#########################
# see the corresponding documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/RepositoriesApi.md
@router.get(
    "/api/v1/repositories", tags=[Tags.repositories], response_model=List[Service]
)
def get_all_repositories(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[Service]:
    return get_rpc_by_role(db, Role("AP"), "ap_list_of_services")


#########################
#                       #
#      Eventmessage     #
#                       #
#########################
# see the corresponding documentation under:
### pkgs/clan-cli/tests/openapi_client/docs/Eventmessage.md
### pkgs/clan-cli/tests/openapi_client/docs/EventmessageCreate.md
### pkgs/clan-cli/tests/openapi_client/docs/EventmessageApi.md
@router.post(
    "/api/v1/event_message", response_model=Eventmessage, tags=[Tags.eventmessages]
)
def create_eventmessage(
    eventmsg: EventmessageCreate, db: Session = Depends(sql_db.get_db)
) -> EventmessageCreate:
    return sql_crud.create_eventmessage(db, eventmsg)


@router.get(
    "/api/v1/event_messages",
    response_model=List[Eventmessage],
    tags=[Tags.eventmessages],
)
def get_all_eventmessages(
    skip: int = 0, limit: int = 100, db: Session = Depends(sql_db.get_db)
) -> List[sql_models.Eventmessage]:
    eventmessages = sql_crud.get_eventmessages(db, skip=skip, limit=limit)
    return eventmessages


##############################
#                            #
#   EMULATED API ENDPOINTS   #
#                            #
##############################
@router.get("/emulate", response_class=HTMLResponse)
def get_emulated_enpoints() -> HTMLResponse:
    from clan_cli.config import ap_url, c1_url, c2_url, dlg_url

    html_content = f"""
    <html>
        <head>
            <title>Emulated API</title>
        </head>
        <body>
            <h1>Emulated API</h1>
            <p>Emulated API endpoints for testing purposes.</p>
            <p>DLG: <a href="{dlg_url}" >{dlg_url} </a></p>
            <p>AP: <a href="{ap_url}">{ap_url}</a></p>
            <p>C1: <a href="{c1_url}">{c1_url} </a></p>
            <p>C2: <a href="{c2_url}">{c2_url}</a></p>
        </body>
    </html>
    """
    return HTMLResponse(content=html_content, status_code=200)