from sqlalchemy import Boolean, Column, DateTime, Float, String, Text, create_engine
from sqlalchemy.orm import declarative_base
from datetime import datetime, timezone

Base = declarative_base()


class ProjectModel(Base):
    __tablename__ = "projects"

    id = Column(String(32), primary_key=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    name = Column(String(100), nullable=False)
    description = Column(Text, nullable=False, default="")
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class AssetLibraryModel(Base):
    __tablename__ = "asset_libraries"

    id = Column(String(32), primary_key=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    project_id = Column(String(32), nullable=False, index=True)
    name = Column(String(100), nullable=False)
    kind = Column(String(20), nullable=False)
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class AssetModel(Base):
    __tablename__ = "assets"

    id = Column(String(32), primary_key=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    project_id = Column(String(32), nullable=False, index=True)
    library_id = Column(String(32), nullable=False, index=True)
    name = Column(String(100), nullable=False)
    storage_key = Column(String(255), nullable=False)
    mime_type = Column(String(100), nullable=False)
    metadata_json = Column(Text, nullable=False, default="{}")
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class IngestJobModel(Base):
    __tablename__ = "ingest_jobs"

    id = Column(String(32), primary_key=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    project_id = Column(String(32), nullable=False, index=True)
    library_id = Column(String(32), nullable=False, index=True)
    storage_key = Column(String(255), nullable=False)
    status = Column(String(20), nullable=False, default="pending")
    error_message = Column(Text, nullable=False, default="")
    result_asset_id = Column(String(32), nullable=False, default="")
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class TaskModel(Base):
    __tablename__ = "tasks"

    id = Column(String(32), primary_key=True)
    project_id = Column(String(32), nullable=False, index=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    name = Column(String(200), nullable=False)
    description = Column(Text, nullable=False, default="")
    status = Column(String(20), nullable=False, default="pending", index=True)
    priority = Column(String(20), nullable=False, default="medium")
    parent_task_id = Column(String(32), nullable=False, default="", index=True)
    assignee_user_id = Column(String(32), nullable=False, default="")
    progress = Column(Float, nullable=False, default=0.0)
    planned_start_date = Column(DateTime, nullable=True)
    planned_end_date = Column(DateTime, nullable=True)
    actual_start_date = Column(DateTime, nullable=True)
    actual_end_date = Column(DateTime, nullable=True)
    tags_json = Column(Text, nullable=False, default="[]")
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class MilestoneModel(Base):
    __tablename__ = "milestones"

    id = Column(String(32), primary_key=True)
    project_id = Column(String(32), nullable=False, index=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    name = Column(String(200), nullable=False)
    description = Column(Text, nullable=False, default="")
    target_date = Column(DateTime, nullable=True)
    completed = Column(Boolean, nullable=False, default=False)
    completed_at = Column(DateTime, nullable=True)
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))


class TaskIssueModel(Base):
    __tablename__ = "task_issues"

    id = Column(String(32), primary_key=True)
    task_id = Column(String(32), nullable=False, index=True)
    project_id = Column(String(32), nullable=False, index=True)
    workspace_id = Column(String(32), nullable=False, index=True)
    title = Column(String(200), nullable=False)
    description = Column(Text, nullable=False, default="")
    resolved = Column(Boolean, nullable=False, default=False)
    resolved_at = Column(DateTime, nullable=True)
    created_by_user_id = Column(String(32), nullable=False, default="")
    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))