"""Super admin dashboard summary."""
from fastapi import APIRouter, Depends
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select, func, and_
from datetime import date, timedelta

from app.auth.dependencies import require_super_admin
from app.database import get_db
from app.models.user import HubUser
from app.models.school import School, SchoolStatus
from app.models.license import License, LicenseStatus
from app.models.sms import SmsJob, SmsJobStatus
from app.models.billing import Invoice, InvoiceStatus
from app.models.ticket import SupportTicket, TicketStatus

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

@router.get("/summary")
async def get_summary(
    _admin: HubUser = Depends(require_super_admin),
    db: AsyncSession = Depends(get_db),
):
    total_schools = (await db.execute(select(func.count()).select_from(School))).scalar_one()
    active_schools = (await db.execute(select(func.count()).where(School.status == SchoolStatus.active))).scalar_one()
    suspended_schools = (await db.execute(select(func.count()).where(School.status == SchoolStatus.suspended))).scalar_one()
    expiring_soon = (await db.execute(
        select(func.count()).where(
            and_(License.expires_at != None, License.expires_at <= date.today() + timedelta(days=30),
                 License.status == LicenseStatus.active)
        )
    )).scalar_one()
    open_tickets = (await db.execute(
        select(func.count()).where(SupportTicket.status.in_([TicketStatus.open, TicketStatus.in_progress]))
    )).scalar_one()
    pending_invoices = (await db.execute(
        select(func.count()).where(Invoice.status.in_([InvoiceStatus.sent, InvoiceStatus.overdue]))
    )).scalar_one()
    sms_today = (await db.execute(
        select(func.count()).where(
            and_(func.date(SmsJob.created_at) == date.today(), SmsJob.status == SmsJobStatus.sent)
        )
    )).scalar_one()
    sms_pending = (await db.execute(
        select(func.count()).where(SmsJob.status == SmsJobStatus.pending)
    )).scalar_one()

    return {
        "schools": {"total": total_schools, "active": active_schools, "suspended": suspended_schools},
        "licenses": {"expiring_soon": expiring_soon},
        "tickets": {"open": open_tickets},
        "invoices": {"pending": pending_invoices},
        "sms": {"sent_today": sms_today, "pending": sms_pending},
    }