# -*- coding: utf-8 -*-
"""政务端端点（证明数据范围层级：上级可看下级，下级不可看上级）。"""
from __future__ import annotations

from fastapi import APIRouter, Depends, HTTPException, Request

from ..dependencies import get_db
from ...rbac import require_permission, require_scope, write_audit
from ...infrastructure.repositories import Database

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


@router.get("/regions", summary="可见区域（按数据范围）")
async def list_regions(
    db: Database = Depends(get_db),
    user: dict = Depends(require_scope()),
):
    """返回当前政务账号数据范围内的区域（省级=全部，区县=仅本区县）。"""
    all_regions = await db.regions.all()
    visible = {rid for rid in user.get("scope_region_ids", [])}
    return [r for r in all_regions if r["id"] in visible]


@router.get("/enterprises", summary="区域内企业列表")
async def list_enterprises(
    request: Request,
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    """返回数据范围内的甲方企业；每次访问写一条 data.view 审计。"""
    orgs = await db.orgs.list_by_region(user.get("scope_region_ids", []))
    enterprises = [o for o in orgs if o["type"] == "enterprise"]
    await write_audit(
        db, action="data.view", resource="enterprise",
        detail=f"scope={user.get('scope_region_ids', [])}",
        user=user, request=request,
    )
    return enterprises


@router.get("/enterprises/{org_id}", summary="企业详情（范围校验）")
async def get_enterprise(
    org_id: str,
    request: Request,
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    org = await db.orgs.get(org_id)
    if org is None or org["type"] != "enterprise":
        raise HTTPException(status_code=404, detail="Enterprise not found")
    if org["region_id"] not in user.get("scope_region_ids", []):
        raise HTTPException(status_code=403, detail="Forbidden: out of data scope")
    return org


# ── 三级数据范围：范围内 OPC / 载体 / 数据看板 ────────────────────────────

def _in_scope(region_id, user) -> bool:
    return region_id in user.get("scope_region_ids", [])


@router.get("/opc", summary="范围内 OPC 列表")
async def gov_opc(
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    opcs = [u for u in await db.users.list() if u.get("role") == "opc_member"]
    opcs = [u for u in opcs if _in_scope(u.get("region_id"), user)]
    return {"items": [
        {"title": u.get("nickname") or u.get("username"), "meta": f"信用 {u.get('region_id', '')} · OPC",
         "tag": "OPC"}
        for u in opcs
    ]}


@router.get("/carriers", summary="范围内载体列表")
async def gov_carriers(
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    carriers = [o for o in await db.orgs.all() if o["type"] == "carrier"]
    carriers = [o for o in carriers if _in_scope(o.get("region_id"), user)]
    return {"items": [
        {"title": o["name"], "meta": f"{o.get('region_id', '')} · 载体", "tag": "载体"}
        for o in carriers
    ]}


@router.get("/data", summary="范围内数据看板")
async def gov_data(
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    scope = user.get("scope_region_ids", [])
    stats = await db.stats.overview(region_ids=scope)
    return {
        "stats": [
            {"key": "totalOPC", "value": stats["user_count"]},
            {"key": "taskTotal", "value": stats["task_count"]},
            {"key": "carrierTotal", "value": stats["provider_count"]},
            {"key": "policyTotal", "value": stats["content_count"]},
        ],
        "chart": [
            {"label": "6月", "value": 3200}, {"label": "7月", "value": 3600},
            {"label": "8月", "value": 4100},
        ],
        "scope": scope,
    }


# ── 补贴三级审批（区县→市→省→发放）─────────────────────────────────────────

@router.get("/subsidies", summary="范围内补贴申报列表")
async def gov_subsidies(
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    return {"items": await db.subsidies.list(user.get("scope_region_ids", []))}


@router.post("/subsidies/{aid}/approve", summary="补贴审批（按级别推进）")
async def gov_approve_subsidy(
    aid: str,
    request: Request,
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    from ...services.subsidy_service import SubsidyService

    updated = await SubsidyService(db).approve(aid, user)
    await write_audit(db, action="subsidy.approve", resource="subsidy", resource_id=aid,
                detail=updated.get("status"), user=user, request=request)
    return updated


@router.post("/subsidies/{aid}/pay", summary="补贴发放")
async def gov_pay_subsidy(
    aid: str,
    request: Request,
    db: Database = Depends(get_db),
    user: dict = Depends(require_permission("menu:gov_data")),
):
    from ...services.subsidy_service import SubsidyService

    updated = await SubsidyService(db).pay(aid)
    await write_audit(db, action="subsidy.pay", resource="subsidy", resource_id=aid,
                user=user, request=request)
    return updated