[Feature request] Sort tasks by time in daily note after moving in timeline

[Gelio]

[Feature request] Sort tasks by time in daily note after moving in timeline

[Gelio]

Hey @ivan-lednev, thanks for providing a list of steps to do, as well as code to consume. That is really helpful!

So far I have noticed that updating the task in the file after moving it in the timeline is done with the following function

obsidian-day-planner/src/service/plan-editor.ts

Lines 134 to 148 in 2a5e8fb

	private updateTaskInFileContents(contents: string, task: Task) {
	return contents
	.split("\n")
	.map((line, index) => {
	if (index === task.location?.line) {
	return (
	line.substring(0, task.location.position.start.col) +
	task.firstLineText
	);
	}
	return line;
	})
	.join("\n");
	}

which uses plain string manipulation. Moreover, as far as I can tell, mdast-util-from-markdown is not used in the project so far.

I believe the place I should modify to the very basic case of updating a single file when moving tasks inside of it, is:

obsidian-day-planner/src/service/plan-editor.ts

Lines 85 to 95 in 2a5e8fb

	const editPromises = Object.keys(pathToEditedTasksLookup).map(
	async (path) =>
	await this.obsidianFacade.editFile(path, (contents) =>
	pathToEditedTasksLookup[path].reduce(
	(result, current) => this.updateTaskInFileContents(result, current),
	contents,
	),
	),
	);
	return Promise.all(editPromises);

I will see what I can do. I believe it will take me some time to experiment with modifying the file on the AST level. I'll share updates when I make more progress. Feel free to take over this feature if you feel like you can get it done soon

[ivan-lednev]

Hello, @Gelio,

To sort tasks you'll need to update src/service/plan-editor.ts. After every write to the plan, we need to

1. grab the first block under the planner heading
2. parse it with mdast-util-from-markdown. An abstract tree is easier to manipulate than an array of lines, and we can have subtasks, so we need this
3. re-order top-level list items
4. serialize it back to markdown and replace document contents

mdast-util-from-markdown handles Obsidian-flavored markdown well, but to convert it back, you can grab this utility that fixes some format discrepancies: src/mdast/mdast.ts.

Let me know if you have any other questions!