task-trigger-listener

<%*
// ============================================================
// TASK COMPLETION TRIGGER — Listener
// by sqeptyk
// ============================================================
//
// SETUP:
// 1. Place this file anywhere in your vault.
// 2. In Templater settings, add this file to "Startup Templates".
// 3. Edit WATCH_FOLDER to the folder containing your task notes.
// 4. Edit TASK_TAG_MAP to map your tags to your templates.
//
// TAG FORMAT: Tasks must use #yourtag somewhere in the task line.
// Example: - [ ] Take Loki for a walk #mornwalk
//
// TEMPLATE PATH: Path relative to vault root, no .md extension.
// Example: "Templates/MyTemplate"
//
// To add new tag → template mappings without editing this file,
// use the companion add-task-trigger.md template.
// ============================================================
// -- CONFIGURATION -------------------------------------------
// Folder to watch for task completions (vault-root relative)
const WATCH_FOLDER = "TASKS";
// Map of tags to templates
// Add or remove entries as needed
const TASK_TAG_MAP = {
// "#yourtag": { template: "Templates/YourTemplate" },
// "#anothertag": { template: "Templates/AnotherTemplate" },
};
// ------------------------------------------------------------
const fileCache = new Map();
const watchPrefix = WATCH_FOLDER + "/";
const plugin = tp.app.plugins.getPlugin("templater-obsidian");
function getCompletedTag(oldContent, newContent) {
const oldSet = new Set(oldContent.split("\n"));
const newLines = newContent.split("\n");
const tags = Object.keys(TASK_TAG_MAP);
const pattern = new RegExp("^- \[x\]");
for (let i = 0; i < newLines.length; i++) {
const line = newLines[i];
if (pattern.test(line) && !oldSet.has(line)) {
for (let j = 0; j < tags.length; j++) {
if (line.indexOf(tags[j]) !== -1) return tags[j];
}
}
}
return null;
}
let processingTask = false;
(async function init() {
const allFiles = tp.app.vault.getFiles();
for (let i = 0; i < allFiles.length; i++) {
if (allFiles[i].path.indexOf(watchPrefix) === 0) {
const c = await tp.app.vault.read(allFiles[i]);
fileCache.set(allFiles[i].path, c);
}
}
    plugin.registerEvent(
        tp.app.vault.on("modify", async function(file) {
            if (file.path.indexOf(watchPrefix) !== 0) return;
            if (processingTask) return;

            const newContent = await tp.app.vault.read(file);
            const oldContent = fileCache.get(file.path) || "";
            fileCache.set(file.path, newContent);

            const tag = getCompletedTag(oldContent, newContent);
            if (!tag) return;

            const config = TASK_TAG_MAP[tag];
            processingTask = true;

            try {
                const templateFile = tp.app.vault.getAbstractFileByPath(config.template + ".md");
                if (!templateFile) {
                    new Notice("Task Trigger: Template not found: " + config.template);
                    return;
                }
                await plugin.templater.create_new_note_from_template(templateFile, undefined, undefined, false);
            } catch (e) {
                console.error("Task Trigger error:", e);
                new Notice("Task Trigger: Failed - check console.");
            } finally {
                processingTask = false;
            }
        })
    );
})();
%>