"""Project template model for reusable project configurations"""

from datetime import datetime
from decimal import Decimal

from app import db


class ProjectTemplate(db.Model):
    """Template for creating projects with pre-configured settings"""

    __tablename__ = "project_templates"

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(200), nullable=False, index=True)
    description = db.Column(db.Text, nullable=True)

    # Template configuration (JSON)
    # Contains: client_id (optional), description, billable, hourly_rate,
    # billing_ref, code, estimated_hours, budget_amount, budget_threshold_percent
    config = db.Column(db.JSON, nullable=False, default=dict)

    # Template tasks (JSON array of task configurations)
    # Each task: {name, description, priority, status, estimated_hours}
    tasks = db.Column(db.JSON, nullable=True, default=list)

    # Template categories/tags
    category = db.Column(db.String(100), nullable=True, index=True)
    tags = db.Column(db.JSON, nullable=True, default=list)

    # Visibility
    is_public = db.Column(db.Boolean, default=False, nullable=False, index=True)
    created_by = db.Column(db.Integer, db.ForeignKey("users.id"), nullable=False, index=True)

    # Usage statistics
    usage_count = db.Column(db.Integer, default=0, nullable=False)
    last_used_at = db.Column(db.DateTime, nullable=True)

    # Metadata
    created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)

    # Relationships
    creator = db.relationship("User", backref="project_templates")

    def __repr__(self):
        return f"<ProjectTemplate {self.name}>"

    def to_dict(self):
        """Convert template to dictionary"""
        return {
            "id": self.id,
            "name": self.name,
            "description": self.description,
            "config": self.config or {},
            "tasks": self.tasks or [],
            "category": self.category,
            "tags": self.tags or [],
            "is_public": self.is_public,
            "created_by": self.created_by,
            "usage_count": self.usage_count,
            "last_used_at": self.last_used_at.isoformat() if self.last_used_at else None,
            "created_at": self.created_at.isoformat(),
            "updated_at": self.updated_at.isoformat(),
        }