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

class TicketStatus(str, Enum):
    OPEN = "open"
    IN_PROGRESS = "in_progress"
    RESOLVED = "resolved"
    CLOSED = "closed"

class TicketPriority(str, Enum):
    LOW = "low"
    MEDIUM = "medium"
    HIGH = "high"
    CRITICAL = "critical"

class ProjectCreate(BaseModel):
    name: str
    key: str = Field(..., pattern="^[A-Z]{2,10}$")
    description: Optional[str] = None
    webhook_url: Optional[str] = None

class Project(ProjectCreate):
    id: int
    created_at: datetime
    ticket_count: int = 0

class TicketCreate(BaseModel):
    project_id: int
    title: str
    description: str
    priority: TicketPriority = TicketPriority.MEDIUM
    labels: List[str] = []

class Ticket(TicketCreate):
    id: int
    key: str  # e.g., "PROJ-123"
    status: TicketStatus = TicketStatus.OPEN
    created_at: datetime
    updated_at: datetime
    
class TicketUpdate(BaseModel):
    title: Optional[str] = None
    description: Optional[str] = None
    status: Optional[TicketStatus] = None
    priority: Optional[TicketPriority] = None
    labels: Optional[List[str]] = None

class Comment(BaseModel):
    id: int
    ticket_id: int
    author: str
    content: str
    created_at: datetime

class CommentCreate(BaseModel):
    author: str = "system"
    content: str

class WebhookConfig(BaseModel):
    id: int
    project_id: int
    url: str
    events: List[str] = ["ticket.created", "ticket.updated", "comment.added"]
    active: bool = True