"""
Base setup for views, containing shared functionality and imports.
"""

import logging
from pathlib import Path

from fastapi import APIRouter, Depends, HTTPException, Request  # noqa: F401
from fastapi.templating import Jinja2Templates
from sqlalchemy.orm import Session  # noqa: F401

from app.auth import require_login  # noqa: F401
from app.config import settings
from app.database import get_db  # noqa: F401

# Set up Jinja2 templates
templates_dir = Path(__file__).parent.parent.parent / "frontend" / "templates"
templates = Jinja2Templates(directory=str(templates_dir))

# Add Python built-in functions to Jinja2 template globals
templates.env.globals["min"] = min
templates.env.globals["max"] = max

# Customize Jinja2Templates to include app_version in all templates
original_template_response = templates.TemplateResponse


def template_response_with_version(*args, **kwargs):
    """Wrapper for TemplateResponse to include version and CSRF token in all templates"""
    # If context dict is provided, add version to it
    if len(args) >= 2 and isinstance(args[1], dict):
        args[1].setdefault("version", settings.version)
        # Inject CSRF token from request state when available
        req = args[1].get("request")
        if req is not None and hasattr(req.state, "csrf_token"):
            args[1].setdefault("csrf_token", req.state.csrf_token)
        # Inject default color scheme for dark-mode initialisation
        args[1].setdefault("ui_default_color_scheme", getattr(settings, "ui_default_color_scheme", "system"))
    elif "context" in kwargs and isinstance(kwargs["context"], dict):
        kwargs["context"].setdefault("version", settings.version)
        req = kwargs["context"].get("request")
        if req is not None and hasattr(req.state, "csrf_token"):
            kwargs["context"].setdefault("csrf_token", req.state.csrf_token)
        # Inject default color scheme for dark-mode initialisation
        kwargs["context"].setdefault("ui_default_color_scheme", getattr(settings, "ui_default_color_scheme", "system"))
    return original_template_response(*args, **kwargs)


templates.TemplateResponse = template_response_with_version

# Set up logging
logger = logging.getLogger(__name__)