"""正式工资资料、FIFO核算和逐段明细入口。"""

from typing import Annotated

from fastapi import APIRouter, Path, Query
from fastapi.responses import Response
from pydantic import BaseModel, Field

from app.api.deps import DbSession, LoginUser, PayrollWriter, RequestMetaDep
from app.core.response import PageQuery, ok
from app.schemas.payroll import AllocationAdjustmentIn, PayrollMonthIn, PayrollSetupIn
from app.services import payroll_calculation, payroll_inputs, payroll_months, settlement_service

router = APIRouter(prefix="/payroll", tags=["正式工资核算"])


class ProbationAdjustmentIn(BaseModel):
    personnel_id: int = Field(ge=1)
    year: str = Field(pattern=r"^20\d{2}$")
    fingerprint: str = Field(min_length=64, max_length=64)
    reason: str = Field(min_length=1, max_length=255)


@router.post("/probation/adjustments")
def probation_adjustment(payload: ProbationAdjustmentIn, session: DbSession, actor: PayrollWriter, meta: RequestMetaDep):
    from app.services.probation_service import adjustment as apply

    return ok(apply(session, payload, actor, meta))


@router.get("/probation")
def probation_preview(session: DbSession, _: LoginUser, month: str, personnel_id: int | None = None):
    from app.services import probation_service

    return ok(probation_service.preview(session, month, personnel_id))


@router.get("/probation/export")
def probation_export(session: DbSession, _: LoginUser, month: str):
    from app.services import probation_service

    return Response(probation_service.export(session, month),
                    media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
                    headers={"Content-Disposition": 'attachment; filename="probation_balances.xlsx"'})


@router.get("/salary-export/{month}")
def salary_export(month: str, session: DbSession, _: LoginUser):
    from app.core.month import validate_month
    from app.services.salary_completion import export_settlement

    validate_month(month)
    return Response(export_settlement(session, month),
                    media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
                    headers={"Content-Disposition": 'attachment; filename="monthly_salary.xlsx"'})


@router.get("/months/{month}")
def month_state(
    month: Annotated[str, Path(pattern=r"^20[0-9]{2}-(0[1-9]|1[0-2])$")],
    session: DbSession,
    _: LoginUser,
):
    return ok(payroll_months.month_state(session, month))


@router.get("/businesses/{business_id}/input")
def input_detail(business_id: int, session: DbSession, _: LoginUser):
    return ok(payroll_inputs.detail(session, business_id))


@router.post("/businesses/{business_id}/input")
def save_input(
    business_id: int,
    payload: PayrollSetupIn,
    session: DbSession,
    actor: PayrollWriter,
    meta: RequestMetaDep,
):
    return ok(payroll_inputs.setup(session, business_id, payload, actor, meta))


@router.post("/businesses/{business_id}/calculate")
def calculate(
    business_id: int,
    payload: PayrollMonthIn,
    session: DbSession,
    actor: PayrollWriter,
    meta: RequestMetaDep,
):
    return ok(
        payroll_calculation.calculate(
            session, business_id, payload.month, operator=actor, meta=meta, reason=payload.reason
        )
    )


@router.get("/ledger/{ledger_id}/allocations")
def allocations(
    ledger_id: int, query: Annotated[PageQuery, Query()], session: DbSession, _: LoginUser
):
    return ok(payroll_calculation.allocation_page(session, ledger_id, query))


@router.post("/allocation-adjustments")
def adjustment(
    payload: AllocationAdjustmentIn, session: DbSession, actor: PayrollWriter, meta: RequestMetaDep
):
    return ok(
        settlement_service.create_allocation_adjustment(session, payload, operator=actor, meta=meta)
    )