"""Pydantic schemas for API request/response validation."""

from datetime import datetime
from pydantic import BaseModel, Field


# ── Auth ──

class AdminLogin(BaseModel):
    email: str
    password: str


class CitizenVerify(BaseModel):
    commune_slug: str
    auth_code: str


class Token(BaseModel):
    access_token: str
    token_type: str = "bearer"
    role: str
    commune_slug: str | None = None


# ── Commune ──

class CommuneCreate(BaseModel):
    name: str
    slug: str
    description: str = ""


class CommuneUpdate(BaseModel):
    name: str | None = None
    description: str | None = None
    is_active: bool | None = None
    vote_deadline: datetime | None = None


class CommuneOut(BaseModel):
    id: int
    name: str
    slug: str
    description: str
    is_active: bool
    created_at: datetime
    vote_deadline: datetime | None = None

    model_config = {"from_attributes": True}


# ── TariffParams ──

class TariffParamsUpdate(BaseModel):
    abop: float | None = None
    abos: float | None = None
    recettes: float | None = None
    pmax: float | None = None
    vmax: float | None = None
    data_year: int | None = None


class TariffParamsOut(BaseModel):
    abop: float
    abos: float
    recettes: float
    pmax: float
    vmax: float
    data_year: int | None = None
    data_imported_at: datetime | None = None

    model_config = {"from_attributes": True}


# ── Household ──

class HouseholdOut(BaseModel):
    id: int
    identifier: str
    status: str
    volume_m3: float
    price_paid_eur: float
    auth_code: str
    has_voted: bool

    model_config = {"from_attributes": True}


class HouseholdStats(BaseModel):
    total: int
    rs_count: int
    rp_count: int
    pro_count: int
    total_volume: float
    avg_volume: float
    median_volume: float
    voted_count: int
    data_year: int | None = None
    data_imported_at: datetime | None = None


class ImportPreview(BaseModel):
    valid_rows: int
    errors: list[str]
    sample: list[dict]


class ImportResult(BaseModel):
    created: int
    errors: list[str]


# ── Tariff Compute ──

class TariffComputeRequest(BaseModel):
    commune_slug: str
    vinf: float = Field(ge=0)
    a: float = Field(ge=0, le=1)
    b: float = Field(ge=0, le=1)
    c: float = Field(ge=0, le=1)
    d: float = Field(ge=0, le=1)
    e: float = Field(ge=0, le=1)


class ImpactRowOut(BaseModel):
    volume: float
    old_price: float
    new_price_rp: float
    new_price_rs: float


class TariffComputeResponse(BaseModel):
    p0: float
    curve_volumes: list[float]
    curve_prices_m3: list[float]
    curve_bills_rp: list[float]
    curve_bills_rs: list[float]
    impacts: list[ImpactRowOut]


# ── Vote ──

class VoteCreate(BaseModel):
    vinf: float = Field(ge=0)
    a: float = Field(ge=0, le=1)
    b: float = Field(ge=0, le=1)
    c: float = Field(ge=0, le=1)
    d: float = Field(ge=0, le=1)
    e: float = Field(ge=0, le=1)


class VoteOut(BaseModel):
    id: int
    household_id: int
    vinf: float
    a: float
    b: float
    c: float
    d: float
    e: float
    computed_p0: float | None
    submitted_at: datetime
    is_active: bool

    model_config = {"from_attributes": True}


class MedianOut(BaseModel):
    vinf: float
    a: float
    b: float
    c: float
    d: float
    e: float
    computed_p0: float
    vote_count: int


# ── Admin User ──

class AdminUserCreate(BaseModel):
    email: str
    password: str
    full_name: str = ""
    role: str = "commune_admin"
    commune_slugs: list[str] = []


class AdminUserOut(BaseModel):
    id: int
    email: str
    full_name: str
    role: str

    model_config = {"from_attributes": True}


# ── Content ──

class ContentUpdate(BaseModel):
    title: str
    body_markdown: str


class ContentOut(BaseModel):
    slug: str
    title: str
    body_markdown: str
    updated_at: datetime

    model_config = {"from_attributes": True}