from pydantic import BaseModel
from typing import Optional, List
from datetime import datetime, date
from enum import Enum


class ActionItemStatus(str, Enum):
    OPEN = "Open"
    IN_PROGRESS = "In Progress"
    DONE = "Done"
    DELAYED = "Delayed"


class UserRole(str, Enum):
    ADMIN = "admin"
    USER = "user"


# Auth schemas
class LoginRequest(BaseModel):
    email: str
    password: str


class LoginResponse(BaseModel):
    token: str
    email: str
    role: str


class TokenPayload(BaseModel):
    email: str
    role: str
    exp: Optional[int] = None


# Meeting schemas
class ConclusionCreate(BaseModel):
    content: str


class ConclusionResponse(BaseModel):
    conclusion_id: int
    meeting_id: int
    content: str
    system_code: Optional[str] = None


class ActionItemCreate(BaseModel):
    content: str
    owner: Optional[str] = ""
    due_date: Optional[date] = None


class ActionItemUpdate(BaseModel):
    content: Optional[str] = None
    owner: Optional[str] = None
    due_date: Optional[date] = None
    status: Optional[ActionItemStatus] = None


class ActionItemResponse(BaseModel):
    action_id: int
    meeting_id: int
    content: str
    owner: Optional[str] = None
    due_date: Optional[date] = None
    status: ActionItemStatus
    system_code: Optional[str] = None


class MeetingCreate(BaseModel):
    subject: str
    meeting_time: datetime
    location: Optional[str] = ""
    chairperson: Optional[str] = ""
    recorder: Optional[str] = ""
    attendees: Optional[str] = ""
    transcript_blob: Optional[str] = ""
    conclusions: Optional[List[ConclusionCreate]] = []
    actions: Optional[List[ActionItemCreate]] = []


class MeetingUpdate(BaseModel):
    subject: Optional[str] = None
    meeting_time: Optional[datetime] = None
    location: Optional[str] = None
    chairperson: Optional[str] = None
    recorder: Optional[str] = None
    attendees: Optional[str] = None
    transcript_blob: Optional[str] = None
    conclusions: Optional[List[ConclusionCreate]] = None
    actions: Optional[List[ActionItemCreate]] = None


class MeetingResponse(BaseModel):
    meeting_id: int
    uuid: str
    subject: str
    meeting_time: datetime
    location: Optional[str] = None
    chairperson: Optional[str] = None
    recorder: Optional[str] = None
    attendees: Optional[str] = None
    transcript_blob: Optional[str] = None
    created_by: Optional[str] = None
    created_at: datetime
    conclusions: List[ConclusionResponse] = []
    actions: List[ActionItemResponse] = []


class MeetingListResponse(BaseModel):
    meeting_id: int
    uuid: str
    subject: str
    meeting_time: datetime
    chairperson: Optional[str] = None
    created_at: datetime


# AI schemas
class SummarizeRequest(BaseModel):
    transcript: str


class SummarizeResponse(BaseModel):
    conclusions: List[str]
    action_items: List[ActionItemCreate]