from fastapi import APIRouter, Depends

from admin_app.api.dependencies import get_settings, require_admin_permission
from admin_app.api.schemas import (
    AdminToolContractsResponse,
    AdminToolDraftListResponse,
    AdminToolManagementActionResponse,
    AdminToolOverviewResponse,
    AdminToolPublicationListResponse,
    AdminToolReviewQueueResponse,
)
from admin_app.core import AdminSettings, AuthenticatedStaffPrincipal
from admin_app.services import ToolManagementService
from shared.contracts import AdminPermission

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


def _build_service(settings: AdminSettings) -> ToolManagementService:
    return ToolManagementService(settings)


@router.get(
    "/overview",
    response_model=AdminToolOverviewResponse,
)
def tools_overview(
    settings: AdminSettings = Depends(get_settings),
    _: AuthenticatedStaffPrincipal = Depends(
        require_admin_permission(AdminPermission.MANAGE_TOOL_DRAFTS)
    ),
):
    service = _build_service(settings)
    payload = service.build_overview_payload()
    return AdminToolOverviewResponse(
        service="orquestrador-admin",
        mode=payload["mode"],
        metrics=payload["metrics"],
        workflow=payload["workflow"],
        actions=_build_actions(settings),
        next_steps=payload["next_steps"],
    )


@router.get(
    "/contracts",
    response_model=AdminToolContractsResponse,
)
def tool_contracts(
    settings: AdminSettings = Depends(get_settings),
    _: AuthenticatedStaffPrincipal = Depends(
        require_admin_permission(AdminPermission.MANAGE_TOOL_DRAFTS)
    ),
):
    service = _build_service(settings)
    payload = service.build_contracts_payload()
    return AdminToolContractsResponse(
        service="orquestrador-admin",
        publication_source_service=payload["publication_source_service"],
        publication_target_service=payload["publication_target_service"],
        lifecycle_statuses=payload["lifecycle_statuses"],
        parameter_types=payload["parameter_types"],
        publication_fields=payload["publication_fields"],
        published_tool_fields=payload["published_tool_fields"],
    )


@router.get(
    "/drafts",
    response_model=AdminToolDraftListResponse,
)
def tool_drafts(
    settings: AdminSettings = Depends(get_settings),
    _: AuthenticatedStaffPrincipal = Depends(
        require_admin_permission(AdminPermission.MANAGE_TOOL_DRAFTS)
    ),
):
    service = _build_service(settings)
    payload = service.build_drafts_payload()
    return AdminToolDraftListResponse(
        service="orquestrador-admin",
        storage_status=payload["storage_status"],
        message=payload["message"],
        drafts=payload["drafts"],
        supported_statuses=payload["supported_statuses"],
    )


@router.get(
    "/review-queue",
    response_model=AdminToolReviewQueueResponse,
)
def tool_review_queue(
    settings: AdminSettings = Depends(get_settings),
    _: AuthenticatedStaffPrincipal = Depends(
        require_admin_permission(AdminPermission.REVIEW_TOOL_GENERATIONS)
    ),
):
    service = _build_service(settings)
    payload = service.build_review_queue_payload()
    return AdminToolReviewQueueResponse(
        service="orquestrador-admin",
        queue_mode=payload["queue_mode"],
        message=payload["message"],
        items=payload["items"],
        supported_statuses=payload["supported_statuses"],
    )


@router.get(
    "/publications",
    response_model=AdminToolPublicationListResponse,
)
def tool_publications(
    settings: AdminSettings = Depends(get_settings),
    _: AuthenticatedStaffPrincipal = Depends(
        require_admin_permission(AdminPermission.PUBLISH_TOOLS)
    ),
):
    service = _build_service(settings)
    payload = service.build_publications_payload()
    return AdminToolPublicationListResponse(
        service="orquestrador-admin",
        source=payload["source"],
        target_service=payload["target_service"],
        publications=payload["publications"],
    )


def _build_actions(settings: AdminSettings) -> list[AdminToolManagementActionResponse]:
    return [
        AdminToolManagementActionResponse(
            key="overview",
            label="Overview de tools",
            href=_build_prefixed_path(settings.admin_api_prefix, "/tools/overview"),
            required_permission=AdminPermission.MANAGE_TOOL_DRAFTS,
            description="Snapshot inicial da governanca de tools no admin.",
        ),
        AdminToolManagementActionResponse(
            key="contracts",
            label="Contratos compartilhados",
            href=_build_prefixed_path(settings.admin_api_prefix, "/tools/contracts"),
            required_permission=AdminPermission.MANAGE_TOOL_DRAFTS,
            description="Enumera lifecycle, tipos de parametro e campos de publicacao.",
        ),
        AdminToolManagementActionResponse(
            key="drafts",
            label="Fila de drafts",
            href=_build_prefixed_path(settings.admin_api_prefix, "/tools/drafts"),
            required_permission=AdminPermission.MANAGE_TOOL_DRAFTS,
            description="Base do cadastro de novas tools e estados vazios da fase atual.",
        ),
        AdminToolManagementActionResponse(
            key="review_queue",
            label="Fila de revisao",
            href=_build_prefixed_path(settings.admin_api_prefix, "/tools/review-queue"),
            required_permission=AdminPermission.REVIEW_TOOL_GENERATIONS,
            description="Superficie para validacao, revisao tecnica e aprovacao humana.",
        ),
        AdminToolManagementActionResponse(
            key="publications",
            label="Catalogo de publicacoes",
            href=_build_prefixed_path(settings.admin_api_prefix, "/tools/publications"),
            required_permission=AdminPermission.PUBLISH_TOOLS,
            description="Catalogo bootstrap de tools ativas voltadas ao runtime de produto.",
        ),
    ]


def _build_prefixed_path(api_prefix: str, path: str) -> str:
    normalized_prefix = api_prefix.rstrip("/")
    normalized_path = path if path.startswith("/") else f"/{path}"
    if not normalized_prefix:
        return normalized_path
    if normalized_path == "/":
        return f"{normalized_prefix}/"
    return f"{normalized_prefix}{normalized_path}"