"""Shared domain value objects used across providers, agent tools and the proposal engine.

These are deliberately plain (pydantic) models decoupled from the ORM so that
SchedulingProvider implementations and the agent can be tested without a database.
"""

from __future__ import annotations

import enum
from datetime import datetime

from pydantic import BaseModel, Field


class BookingStatus(enum.StrEnum):
    pending = "pending"
    resolved_by_owner = "resolved_by_owner"  # owner contacted client directly (primary flow)
    confirmed = "confirmed"  # owner confirmed a slot → Gogo sends confirmation SMS
    rejected = "rejected"
    expired = "expired"


class CallOutcome(enum.StrEnum):
    human_answered = "human_answered"
    request_created = "request_created"
    info_only = "info_only"
    message_taken = "message_taken"
    abandoned = "abandoned"


class ProviderType(enum.StrEnum):
    google_calendar = "google_calendar"
    partner_api = "partner_api"
    mock = "mock"  # in-memory, for tests and demos


class Slot(BaseModel):
    """One concrete offerable time slot (timezone-aware datetimes)."""

    start: datetime
    end: datetime
    staff_id: str | None = None
    staff_name: str | None = None

    def model_post_init(self, __context) -> None:
        if self.start.tzinfo is None or self.end.tzinfo is None:
            raise ValueError("Slot datetimes must be timezone-aware")


class ServiceInfo(BaseModel):
    """Service as seen by providers / the agent (decoupled from ORM row)."""

    id: str  # our service UUID as string, or partner service id for catalog sync
    name: str
    duration_min: int
    price_min: float | None = None
    price_max: float | None = None
    currency: str = "BAM"
    home_visit: bool = False
    agent_note: str | None = None
    active: bool = True


class BookingRequestData(BaseModel):
    """Payload the proposal engine hands to a provider's deliver_request()."""

    gogo_request_id: str
    tenant_id: str
    created_at: datetime
    source: str  # "voice" | "chat"
    client_name: str
    client_phone: str
    service_id: str | None = None
    service_name_raw: str = ""
    requested_slots: list[Slot] = Field(default_factory=list)  # 0-3, ordered by preference
    time_preference_text: str = ""
    home_visit: bool = False
    address: str | None = None
    summary: str = ""
    transcript_url: str = ""
    dry_run: bool = False


class DeliveryResult(BaseModel):
    ok: bool
    partner_request_id: str | None = None
    detail: str = ""