78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
"""Notes slice: a per-book reading journal. Ownership is always derived through books.user_id."""
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from flask import Blueprint, g, jsonify
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from auth import login_required
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from db import query, query_one
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from validation import ApiError, json_body, text
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bp = Blueprint("notes", __name__, url_prefix="/api")
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MAX_BODY = 10_000
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NOTE_COLUMNS = "n.id, n.book_id, n.body, n.created_at, n.updated_at"
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def to_json(row: dict) -> dict:
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return {
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"id": row["id"],
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"book_id": row["book_id"],
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"body": row["body"],
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"created_at": row["created_at"].isoformat(),
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"updated_at": row["updated_at"].isoformat(),
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}
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def _require_book(book_id: int) -> None:
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if query_one("SELECT 1 FROM books WHERE id = %s AND user_id = %s", (book_id, g.user_id)) is None:
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raise ApiError(404, "Book not found")
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@bp.get("/books/<int(max=2147483647):book_id>/notes")
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@login_required
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def list_notes(book_id: int):
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_require_book(book_id)
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rows = query(
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f"SELECT {NOTE_COLUMNS} FROM notes n WHERE n.book_id = %s ORDER BY n.created_at DESC, n.id DESC",
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(book_id,),
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)
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return jsonify([to_json(row) for row in rows])
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@bp.post("/books/<int(max=2147483647):book_id>/notes")
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@login_required
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def add_note(book_id: int):
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_require_book(book_id)
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body = text(json_body({"body"}), "body", MAX_BODY)
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row = query_one(f"INSERT INTO notes AS n (book_id, body) VALUES (%s, %s) RETURNING {NOTE_COLUMNS}", (book_id, body))
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return jsonify(to_json(row)), 201
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@bp.patch("/notes/<int(max=2147483647):note_id>")
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@login_required
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def update_note(note_id: int):
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body = text(json_body({"body"}), "body", MAX_BODY)
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row = query_one(
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f"""
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UPDATE notes n
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SET body = %s, updated_at = now()
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FROM books b
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WHERE n.id = %s AND b.id = n.book_id AND b.user_id = %s
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RETURNING {NOTE_COLUMNS}
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""",
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(body, note_id, g.user_id),
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)
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if row is None:
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raise ApiError(404, "Note not found")
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return jsonify(to_json(row))
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@bp.delete("/notes/<int(max=2147483647):note_id>")
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@login_required
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def delete_note(note_id: int):
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row = query_one(
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"DELETE FROM notes n USING books b WHERE n.id = %s AND b.id = n.book_id AND b.user_id = %s RETURNING n.id",
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(note_id, g.user_id),
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)
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if row is None:
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raise ApiError(404, "Note not found")
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return "", 204
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