"""Pydantic schemas for the /l1/* endpoint surface."""
from datetime import datetime
from typing import Any, Literal, Optional
from uuid import UUID

from pydantic import BaseModel, Field


class IntakeRequest(BaseModel):
    problem_statement: str = Field(..., min_length=1)
    customer_name: Optional[str] = None
    customer_contact: Optional[str] = None
    flow_id: Optional[UUID] = None


class IntakeResponse(BaseModel):
    session_id: UUID
    session_kind: Literal["flow", "proposal", "adhoc"]
    ticket_id: str
    ticket_kind: Literal["psa", "internal"]


class StepRequest(BaseModel):
    node_id: str
    question: str
    answer: str
    note: Optional[str] = None


class NotesRequest(BaseModel):
    notes: list[dict[str, Any]]


class ResolveRequest(BaseModel):
    helpful: bool
    resolution_notes: str


class EscalateRequest(BaseModel):
    reason: Optional[str] = None
    reason_category: str = Field(..., min_length=1)


class EscalateWithoutWalkRequest(BaseModel):
    problem_statement: str = Field(..., min_length=1)
    customer_name: Optional[str] = None
    customer_contact: Optional[str] = None
    reason_category: str = Field(..., min_length=1)
    reason: Optional[str] = None


class WalkSessionResponse(BaseModel):
    id: UUID
    session_kind: str
    flow_id: Optional[UUID]
    flow_proposal_id: Optional[UUID]
    current_node_id: Optional[str]
    walked_path: list[dict[str, Any]]
    walk_notes: list[dict[str, Any]]
    status: str
    started_at: datetime
    last_step_at: datetime
    resolved_at: Optional[datetime]


class QueueRow(BaseModel):
    ticket_id: str
    ticket_kind: Literal["psa", "internal"]
    problem_statement: Optional[str] = None
    customer_name: Optional[str] = None
    status: str
    created_at: Optional[datetime] = None