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feat: persist notes on realtime note unload and on interval

Browse source 
The realtime note map has been moved into its own class
to separate the realtime note business logic from the storing logic.

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>
This commit is contained in:
Tilman Vatteroth 2022-07-22 23:05:38 +02:00 • committed by Yannick Bungers
parent 49b4d2e070
commit 4746c30c26
22 changed files with 619 additions and 102 deletions
Download patch file Download diff file Expand all files Collapse all files

46
src/revisions/revisions.service.ts
View file

@ -1,10 +1,11 @@
/*
* SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
* SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { createPatch } from 'diff';
import { Equal, Repository } from 'typeorm';
import { NotInDBError } from '../errors/errors';
@ -51,10 +52,10 @@ export class RevisionsService {
note: Equal(note),
},
});
const latestRevison = await this.getLatestRevision(note);
const latestRevision = await this.getLatestRevision(note);
// get all revisions except the latest
const oldRevisions = revisions.filter(
(item) => item.id !== latestRevison.id,
(item) => item.id !== latestRevision.id,
);
// delete the old revisions
return await this.revisionRepository.remove(oldRevisions);
@ -91,21 +92,6 @@ export class RevisionsService {
return revision;
}
async getFirstRevision(note: Note): Promise<Revision> {
const revision = await this.revisionRepository.findOne({
where: {
note: Equal(note),
},
order: {
createdAt: 'ASC',
},
});
if (revision === null) {
throw new NotInDBError(`Revision for note ${note.id} not found.`);
}
return revision;
}
async getRevisionUserInfo(revision: Revision): Promise<RevisionUserInfo> {
// get a deduplicated list of all authors
let authors = await Promise.all(
@ -156,14 +142,22 @@ export class RevisionsService {
};
}
createRevision(content: string): Revision {
// TODO: Add previous revision
// TODO: Calculate patch
async createRevision(
note: Note,
newContent: string,
): Promise<Revision | undefined> {
// TODO: Save metadata
return this.revisionRepository.create({
content: content,
length: content.length,
patch: '',
});
const latestRevision = await this.getLatestRevision(note);
const oldContent = latestRevision.content;
if (oldContent === newContent) {
return undefined;
}
const patch = createPatch(
'markdownContent',
latestRevision.content,
newContent,
);
const revision = Revision.create(newContent, patch, note);
return await this.revisionRepository.save(revision);
}
}