from fastapi import APIRouter, Depends, HTTPException, Query, status
from sqlalchemy.orm import Session

from app.db.session import get_db
from app.models.api_client import ApiClient
from app.repositories.member_organizations_repo import MemberOrganizationsRepository
from app.repositories.organizations_repo import OrganizationsRepository
from app.repositories.users_repo import UsersRepository
from app.schemas.members import (
    MemberCreateRequest,
    MemberListResponse,
    MemberOrganizationsResponse,
    MemberSummary,
    MemberUpdateRequest,
)
from app.schemas.organizations import (
    OrganizationCreateRequest,
    OrganizationListResponse,
    OrganizationSummary,
    OrganizationUpdateRequest,
)
from app.security.api_client_auth import require_api_client

router = APIRouter(prefix="/admin", tags=["admin"])


def _to_member_summary(member) -> MemberSummary:
    return MemberSummary(
        id=member.id,
        authentik_sub=member.authentik_sub,
        authentik_user_id=member.authentik_user_id,
        email=member.email,
        display_name=member.display_name,
        is_active=member.is_active,
    )


def _to_org_summary(org) -> OrganizationSummary:
    return OrganizationSummary(
        id=org.id,
        org_code=org.org_code,
        name=org.name,
        tax_id=org.tax_id,
        status=org.status,
    )


@router.get("/organizations", response_model=OrganizationListResponse)
def list_organizations(
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
    keyword: str | None = Query(default=None),
    status_filter: str | None = Query(default=None, alias="status"),
    limit: int = Query(default=50, ge=1, le=200),
    offset: int = Query(default=0, ge=0),
) -> OrganizationListResponse:
    repo = OrganizationsRepository(db)
    items, total = repo.list(keyword=keyword, status=status_filter, limit=limit, offset=offset)
    return OrganizationListResponse(items=[_to_org_summary(i) for i in items], total=total, limit=limit, offset=offset)


@router.post("/organizations", response_model=OrganizationSummary)
def create_organization(
    payload: OrganizationCreateRequest,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> OrganizationSummary:
    repo = OrganizationsRepository(db)
    existing = repo.get_by_code(payload.org_code)
    if existing:
        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="organization_code_already_exists")
    org = repo.create(org_code=payload.org_code, name=payload.name, tax_id=payload.tax_id, status=payload.status)
    return _to_org_summary(org)


@router.get("/organizations/{org_id}", response_model=OrganizationSummary)
def get_organization(
    org_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> OrganizationSummary:
    repo = OrganizationsRepository(db)
    org = repo.get_by_id(org_id)
    if not org:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="organization_not_found")
    return _to_org_summary(org)


@router.patch("/organizations/{org_id}", response_model=OrganizationSummary)
def update_organization(
    org_id: str,
    payload: OrganizationUpdateRequest,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> OrganizationSummary:
    repo = OrganizationsRepository(db)
    org = repo.get_by_id(org_id)
    if not org:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="organization_not_found")
    updated = repo.update(org, name=payload.name, tax_id=payload.tax_id, status=payload.status)
    return _to_org_summary(updated)


@router.post("/organizations/{org_id}/activate", response_model=OrganizationSummary)
def activate_organization(
    org_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> OrganizationSummary:
    repo = OrganizationsRepository(db)
    org = repo.get_by_id(org_id)
    if not org:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="organization_not_found")
    return _to_org_summary(repo.update(org, status="active"))


@router.post("/organizations/{org_id}/deactivate", response_model=OrganizationSummary)
def deactivate_organization(
    org_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> OrganizationSummary:
    repo = OrganizationsRepository(db)
    org = repo.get_by_id(org_id)
    if not org:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="organization_not_found")
    return _to_org_summary(repo.update(org, status="inactive"))


@router.get("/members", response_model=MemberListResponse)
def list_members(
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
    keyword: str | None = Query(default=None),
    is_active: bool | None = Query(default=None),
    limit: int = Query(default=50, ge=1, le=200),
    offset: int = Query(default=0, ge=0),
) -> MemberListResponse:
    repo = UsersRepository(db)
    items, total = repo.list(keyword=keyword, is_active=is_active, limit=limit, offset=offset)
    return MemberListResponse(items=[_to_member_summary(i) for i in items], total=total, limit=limit, offset=offset)


@router.post("/members", response_model=MemberSummary)
def create_member(
    payload: MemberCreateRequest,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberSummary:
    repo = UsersRepository(db)
    existing = repo.get_by_sub(payload.authentik_sub)
    if existing:
        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="member_sub_already_exists")
    member = repo.upsert_by_sub(
        authentik_sub=payload.authentik_sub,
        email=payload.email,
        display_name=payload.display_name,
        is_active=payload.is_active,
    )
    return _to_member_summary(member)


@router.get("/members/{member_id}", response_model=MemberSummary)
def get_member(
    member_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberSummary:
    repo = UsersRepository(db)
    member = repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")
    return _to_member_summary(member)


@router.patch("/members/{member_id}", response_model=MemberSummary)
def update_member(
    member_id: str,
    payload: MemberUpdateRequest,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberSummary:
    repo = UsersRepository(db)
    member = repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")
    updated = repo.update_member(member, email=payload.email, display_name=payload.display_name, is_active=payload.is_active)
    return _to_member_summary(updated)


@router.post("/members/{member_id}/activate", response_model=MemberSummary)
def activate_member(
    member_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberSummary:
    repo = UsersRepository(db)
    member = repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")
    return _to_member_summary(repo.update_member(member, is_active=True))


@router.post("/members/{member_id}/deactivate", response_model=MemberSummary)
def deactivate_member(
    member_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberSummary:
    repo = UsersRepository(db)
    member = repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")
    return _to_member_summary(repo.update_member(member, is_active=False))


@router.get("/members/{member_id}/organizations", response_model=MemberOrganizationsResponse)
def list_member_organizations(
    member_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> MemberOrganizationsResponse:
    users_repo = UsersRepository(db)
    link_repo = MemberOrganizationsRepository(db)

    member = users_repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")

    orgs = link_repo.list_organizations_by_member_id(member_id)
    return MemberOrganizationsResponse(member=_to_member_summary(member), organizations=[_to_org_summary(o) for o in orgs])


@router.post("/members/{member_id}/organizations/{org_id}")
def bind_member_organization(
    member_id: str,
    org_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> dict[str, str]:
    users_repo = UsersRepository(db)
    orgs_repo = OrganizationsRepository(db)
    link_repo = MemberOrganizationsRepository(db)

    member = users_repo.get_by_id(member_id)
    if not member:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="member_not_found")
    org = orgs_repo.get_by_id(org_id)
    if not org:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="organization_not_found")

    relation = link_repo.add_if_not_exists(member_id=member_id, organization_id=org_id)
    return {"relation_id": relation.id, "result": "bound"}


@router.delete("/members/{member_id}/organizations/{org_id}")
def unbind_member_organization(
    member_id: str,
    org_id: str,
    _: ApiClient = Depends(require_api_client),
    db: Session = Depends(get_db),
) -> dict[str, int | str]:
    link_repo = MemberOrganizationsRepository(db)
    deleted = link_repo.remove(member_id=member_id, organization_id=org_id)
    return {"deleted": deleted, "result": "unbound"}