handin-website/backend/app/services/page_service.py
2026-03-03 16:16:36 +01:00

149 lines
4.7 KiB
Python

import sqlite3
from datetime import UTC, datetime
from pathlib import Path
from uuid import uuid4
from app.database import get_connection
from app.models import Page, PageCreateRequest, PageUpdateRequest
def _row_to_page(row: sqlite3.Row) -> Page:
return Page(
id=row["id"],
name=row["name"],
slug=row["slug"],
sort_order=row["sort_order"],
is_system=bool(row["is_system"]),
is_hidden=bool(row["is_hidden"]),
created_at=datetime.fromisoformat(row["created_at"]),
updated_at=datetime.fromisoformat(row["updated_at"]),
)
def list_pages(db_path: Path) -> list[Page]:
conn = get_connection(db_path)
try:
rows = conn.execute(
"SELECT * FROM pages ORDER BY is_system ASC, sort_order ASC"
).fetchall()
return [_row_to_page(row) for row in rows]
finally:
conn.close()
def get_page(db_path: Path, page_id: str) -> Page | None:
conn = get_connection(db_path)
try:
row = conn.execute("SELECT * FROM pages WHERE id = ?", (page_id,)).fetchone()
return _row_to_page(row) if row else None
finally:
conn.close()
def get_page_by_slug(db_path: Path, slug: str) -> Page | None:
conn = get_connection(db_path)
try:
row = conn.execute("SELECT * FROM pages WHERE slug = ?", (slug,)).fetchone()
return _row_to_page(row) if row else None
finally:
conn.close()
def create_page(db_path: Path, request: PageCreateRequest) -> Page:
conn = get_connection(db_path)
try:
row = conn.execute(
"SELECT COALESCE(MAX(sort_order) + 1, 0) AS next_order FROM pages WHERE is_system = 0"
).fetchone()
sort_order: int = row["next_order"] if row else 0
page_id = str(uuid4())
now = datetime.now(UTC).isoformat()
conn.execute(
"INSERT INTO pages"
" (id, name, slug, sort_order, is_system, is_hidden, created_at, updated_at)"
" VALUES (?, ?, ?, ?, 0, 0, ?, ?)",
(page_id, request.name, request.slug, sort_order, now, now),
)
conn.commit()
return Page(
id=page_id,
name=request.name,
slug=request.slug,
sort_order=sort_order,
is_system=False,
is_hidden=False,
created_at=datetime.fromisoformat(now),
updated_at=datetime.fromisoformat(now),
)
finally:
conn.close()
def update_page(db_path: Path, page_id: str, request: PageUpdateRequest) -> Page | None:
conn = get_connection(db_path)
try:
existing = conn.execute("SELECT * FROM pages WHERE id = ?", (page_id,)).fetchone()
if existing is None:
return None
now = datetime.now(UTC).isoformat()
name = request.name if request.name is not None else existing["name"]
slug = request.slug if request.slug is not None else existing["slug"]
is_hidden = (
int(request.is_hidden) if request.is_hidden is not None else existing["is_hidden"]
)
conn.execute(
"UPDATE pages SET name = ?, slug = ?, is_hidden = ?, updated_at = ? WHERE id = ?",
(name, slug, is_hidden, now, page_id),
)
conn.commit()
return get_page(db_path, page_id)
finally:
conn.close()
def delete_page(db_path: Path, page_id: str) -> tuple[bool, str | None]:
"""Cascade-deletes the page and all its segments."""
conn = get_connection(db_path)
try:
existing = conn.execute("SELECT * FROM pages WHERE id = ?", (page_id,)).fetchone()
if existing is None:
return False, "not_found"
if existing["is_system"]:
return False, "system_page"
conn.execute("DELETE FROM segments WHERE page_id = ?", (page_id,))
conn.execute("DELETE FROM pages WHERE id = ?", (page_id,))
conn.commit()
return True, None
finally:
conn.close()
def reorder_pages(db_path: Path, page_ids: list[str]) -> list[Page]:
"""Reorders only non-system pages."""
conn = get_connection(db_path)
try:
existing_ids = {
row["id"]
for row in conn.execute("SELECT id FROM pages WHERE is_system = 0").fetchall()
}
requested_ids = set(page_ids)
missing = requested_ids - existing_ids
if missing:
raise ValueError(f"Page IDs not found: {missing}")
now = datetime.now(UTC).isoformat()
for index, pid in enumerate(page_ids):
conn.execute(
"UPDATE pages SET sort_order = ?, updated_at = ? WHERE id = ?",
(index, now, pid),
)
conn.commit()
return list_pages(db_path)
finally:
conn.close()