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

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

class IssueStatus(str, Enum):
    new = "new"
    progress = "progress"
    complete = "complete"

class IssueCategory(str, Enum):
    material_missing = "material_missing"
    design_error = "design_error"  # 설계미스 (기존 dimension_defect 대체)
    incoming_defect = "incoming_defect"
    inspection_miss = "inspection_miss"  # 검사미스 (신규 추가)
    etc = "etc"  # 기타

class ReviewStatus(str, Enum):
    pending_review = "pending_review"    # 수신함 (검토 대기)
    in_progress = "in_progress"          # 관리함 (진행 중)
    completed = "completed"              # 관리함 (완료됨)
    disposed = "disposed"                # 폐기함 (폐기됨)

class DisposalReasonType(str, Enum):
    duplicate = "duplicate"              # 중복 (기본값)
    invalid_report = "invalid_report"    # 잘못된 신고
    not_applicable = "not_applicable"    # 해당 없음
    spam = "spam"                        # 스팸/오류
    custom = "custom"                    # 직접 입력

# User schemas
class UserBase(BaseModel):
    username: str
    full_name: Optional[str] = None
    role: UserRole = UserRole.user

class UserCreate(UserBase):
    password: str

class UserUpdate(BaseModel):
    full_name: Optional[str] = None
    password: Optional[str] = None
    role: Optional[UserRole] = None
    is_active: Optional[bool] = None

class PasswordChange(BaseModel):
    current_password: str
    new_password: str

class User(UserBase):
    id: int
    is_active: bool
    created_at: datetime
    
    class Config:
        from_attributes = True

# Auth schemas
class Token(BaseModel):
    access_token: str
    token_type: str
    user: User

class TokenData(BaseModel):
    username: Optional[str] = None

class LoginRequest(BaseModel):
    username: str
    password: str

# Issue schemas
class IssueBase(BaseModel):
    category: IssueCategory
    description: str
    project_id: int

class IssueCreate(IssueBase):
    photo: Optional[str] = None  # Base64 encoded image
    photo2: Optional[str] = None  # Second Base64 encoded image

class IssueUpdate(BaseModel):
    category: Optional[IssueCategory] = None
    description: Optional[str] = None
    project_id: Optional[int] = None
    work_hours: Optional[float] = None
    detail_notes: Optional[str] = None
    status: Optional[IssueStatus] = None
    photo: Optional[str] = None  # Base64 encoded image for update
    photo2: Optional[str] = None  # Second Base64 encoded image for update

class Issue(IssueBase):
    id: int
    photo_path: Optional[str] = None
    photo_path2: Optional[str] = None  # 두 번째 사진 경로
    status: IssueStatus
    reporter_id: int
    reporter: User
    project_id: Optional[int] = None
    # project: Optional['Project'] = None  # 순환 참조 방지를 위해 제거
    report_date: datetime
    work_hours: float
    detail_notes: Optional[str] = None
    
    # 수신함 워크플로우 관련 필드들
    review_status: ReviewStatus
    disposal_reason: Optional[DisposalReasonType] = None
    custom_disposal_reason: Optional[str] = None
    disposed_at: Optional[datetime] = None
    reviewed_by_id: Optional[int] = None
    reviewed_at: Optional[datetime] = None
    original_data: Optional[Dict[str, Any]] = None
    modification_log: Optional[List[Dict[str, Any]]] = None
    
    class Config:
        from_attributes = True

# 수신함 워크플로우 전용 스키마들
class IssueDisposalRequest(BaseModel):
    """부적합 폐기 요청"""
    disposal_reason: DisposalReasonType = DisposalReasonType.duplicate
    custom_disposal_reason: Optional[str] = None

class IssueReviewRequest(BaseModel):
    """부적합 검토 및 수정 요청"""
    project_id: Optional[int] = None
    category: Optional[IssueCategory] = None
    description: Optional[str] = None
    modifications: Optional[Dict[str, Any]] = None

class IssueStatusUpdateRequest(BaseModel):
    """부적합 상태 변경 요청"""
    review_status: ReviewStatus
    notes: Optional[str] = None

class InboxIssue(BaseModel):
    """수신함용 부적합 정보 (간소화된 버전)"""
    id: int
    category: IssueCategory
    description: str
    photo_path: Optional[str] = None
    photo_path2: Optional[str] = None
    project_id: Optional[int] = None
    reporter_id: int
    reporter: User
    report_date: datetime
    review_status: ReviewStatus
    
    class Config:
        from_attributes = True

class ModificationLogEntry(BaseModel):
    """수정 이력 항목"""
    field: str
    old_value: Any
    new_value: Any
    modified_at: datetime
    modified_by: int

# Project schemas
class ProjectBase(BaseModel):
    job_no: str = Field(..., min_length=1, max_length=50)
    project_name: str = Field(..., min_length=1, max_length=200)

class ProjectCreate(ProjectBase):
    pass

class ProjectUpdate(BaseModel):
    project_name: Optional[str] = Field(None, min_length=1, max_length=200)
    is_active: Optional[bool] = None

class Project(ProjectBase):
    id: int
    created_by_id: int
    created_by: User
    created_at: datetime
    is_active: bool
    # issues: Optional[List['Issue']] = None  # 순환 참조 방지를 위해 제거
    
    class Config:
        from_attributes = True

# Daily Work schemas
class DailyWorkBase(BaseModel):
    date: datetime
    worker_count: int = Field(gt=0)
    overtime_workers: Optional[int] = 0
    overtime_hours: Optional[float] = 0

class DailyWorkCreate(DailyWorkBase):
    pass

class DailyWorkUpdate(BaseModel):
    worker_count: Optional[int] = Field(None, gt=0)
    overtime_workers: Optional[int] = None
    overtime_hours: Optional[float] = None

class DailyWork(DailyWorkBase):
    id: int
    regular_hours: float
    overtime_total: float
    total_hours: float
    created_by_id: int
    created_by: User
    created_at: datetime
    
    class Config:
        from_attributes = True

# Report schemas
class ReportRequest(BaseModel):
    start_date: datetime
    end_date: datetime

class CategoryStats(BaseModel):
    material_missing: int = 0
    dimension_defect: int = 0
    incoming_defect: int = 0

class ReportSummary(BaseModel):
    start_date: datetime
    end_date: datetime
    total_hours: float
    total_issues: int
    category_stats: CategoryStats
    completed_issues: int
    average_resolution_time: float

# Project Daily Work schemas
class ProjectDailyWorkBase(BaseModel):
    date: datetime
    project_id: int
    hours: float

class ProjectDailyWorkCreate(ProjectDailyWorkBase):
    pass

class ProjectDailyWork(ProjectDailyWorkBase):
    id: int
    created_by_id: int
    created_at: datetime
    project: Project
    
    class Config:
        from_attributes = True