"""Public schemas for protocol-agnostic meter sources and bindings."""

from __future__ import annotations

from datetime import datetime
from decimal import Decimal
from typing import Any

from pydantic import BaseModel, Field


class SourceConfigFieldResponse(BaseModel):
    name: str
    value_type: str
    default: Any = None
    required: bool
    secret: bool


class SourceProfileResponse(BaseModel):
    kind: str
    fields: list[SourceConfigFieldResponse]
    defaults: dict[str, Any]
    capabilities: list[str]
    allowed_units: list[str]


class SourceProfilesResponse(BaseModel):
    items: list[SourceProfileResponse]


class MeterSourceCreate(BaseModel):
    name: str = Field(..., min_length=1, max_length=255)
    kind: str = Field(..., min_length=1, max_length=64)
    config: dict[str, Any] = Field(default_factory=dict)
    enabled: bool = True


class MeterSourcePatch(BaseModel):
    name: str | None = Field(default=None, min_length=1, max_length=255)
    config: dict[str, Any] | None = None
    enabled: bool | None = None


class MeterSourceResponse(BaseModel):
    uuid: str
    name: str
    kind: str
    enabled: bool
    config: dict[str, Any]
    status: str
    last_seen_at: datetime | None
    last_error: str | None
    created_at: datetime
    updated_at: datetime


class MeterSourceListResponse(BaseModel):
    items: list[MeterSourceResponse]
    total: int


class DiscoverResponse(BaseModel):
    requested: bool
    supported: bool
    status: str
    request_id: int | None = None
    detail: str | None = None
    channels: list["DiscoverChannelResponse"] = Field(default_factory=list)


class DiscoverChannelResponse(BaseModel):
    uuid: str
    label: str
    unit: str
    latest_value: Decimal | None
    latest_at: datetime | None
    latest_quality: str | None


class ChannelBindingSummaryResponse(BaseModel):
    count: int
    meter_ids: list[int]


class CommodityResponse(BaseModel):
    key: str
    unit: str
    capabilities: list[str]


class CommoditiesResponse(BaseModel):
    items: list[CommodityResponse]


class MeterSourceChannelResponse(BaseModel):
    uuid: str
    label: str
    suggested_commodity: str | None
    unit: str
    device_type: str | None
    latest_value: Decimal | None
    latest_at: datetime | None
    latest_quality: str | None
    binding_count: int
    bound_meter_ids: list[int]
    binding_summary: ChannelBindingSummaryResponse


class MeterSourceChannelListResponse(BaseModel):
    items: list[MeterSourceChannelResponse]
    total: int
    source_status: str


class ChannelReadingResponse(BaseModel):
    recorded_at: datetime
    value: Decimal | None = None
    quality: str | None = None


class ChannelReadingsResponse(BaseModel):
    items: list[ChannelReadingResponse]
    total: int


class BindingCreate(BaseModel):
    source_channel_uuid: str = Field(..., min_length=1, max_length=36)
    started_at: datetime
    ended_at: datetime | None = None


class BindingPatch(BaseModel):
    started_at: datetime | None = None
    ended_at: datetime | None = None


class BindingResponse(BaseModel):
    uuid: str
    meter_id: int
    source_channel_uuid: str
    source_uuid: str
    started_at: datetime
    ended_at: datetime | None
    created_at: datetime
    updated_at: datetime


class BindingListResponse(BaseModel):
    items: list[BindingResponse]
    total: int