tildefriends/apps/wiki/tf-collection.js

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JavaScript
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import {LitElement, html} from './lit-all.min.js';
import * as tfrpc from '/static/tfrpc.js';
class TfCollectionElement extends LitElement {
static get properties() {
return {
whoami: {type: String},
ids: {type: Array},
collections: {type: Array},
collections_loading: {type: Number},
type: {type: String},
parent: {type: String},
selectname: {type: String},
selectid: {type: String},
is_creating: {type: Boolean},
is_renaming: {type: Boolean},
};
}
constructor() {
super();
this.ids = [];
this.loaded = this.load();
this.type = 'collection';
this.collections_loading = 0;
}
async process_message(message) {
let content = JSON.parse(message.content);
if (typeof content == 'string') {
let x = await tfrpc.rpc.try_decrypt(this.whoami, content);
if (x) {
content = JSON.parse(x);
content.draft = true;
} else {
return;
}
if (content.type !== this.type ||
(this.parent && content.parent !== this.parent)) {
return;
}
} else {
content.draft = false;
}
if (content?.key) {
if (content?.tombstone) {
delete this.by_id[content.key];
} else if (this.by_id[content.key]) {
this.by_id[content.key] = Object.assign(this.by_id[content.key], content);
}
} else {
this.by_id[message.id] = Object.assign(content, {id: message.id});
}
}
async load() {
try {
this.collections_loading++;
if (this.ids) {
let visible = this.ids;
this.visible = visible;
if (this.type) {
let collections = await tfrpc.rpc.query(`
SELECT messages.id, author, content, timestamp
FROM messages JOIN json_each(?1) AS id ON messages.author = id.value
WHERE
json_extract(content, '$.type') = ?2 AND
(?3 IS NULL OR json_extract(content, '$.parent') = ?3) OR
content LIKE '"%'
ORDER BY timestamp
`, [JSON.stringify(visible), this.type, this.parent]);
this.by_id = {};
for (let collection of collections) {
await this.process_message(collection);
}
this.collections = Object.values(this.by_id);
}
}
} finally {
this.collections_loading--;
}
if (this.selectname) {
this.set_selected_by_name(this.selectname);
}
}
async create(name, editors) {
let message = {
type: this.type,
name: name,
parent: this.parent,
editors: editors,
};
print('will append', message);
await tfrpc.rpc.appendMessage(this.whoami, message);
}
notify_new_message(message) {
if (this.visible &&
this.visible.indexOf(message.author) != -1 &&
JSON.parse(message.content).type == this.type) {
let self = this;
this.process_message(message).then(function() {
self.collections = [...Object.values(self.by_id)];
});
}
}
async on_create(event) {
let name = this.shadowRoot.getElementById('create_name').value;
if (name) {
await this.create(name, [this.whoami]);
}
this.is_creating = false;
}
async on_rename(id) {
let name = this.shadowRoot.getElementById('rename_name').value;
let message = {
type: this.type,
key: this.selectid,
parent: this.parent,
name: name,
};
print(message);
await tfrpc.rpc.appendMessage(this.whoami, message);
this.is_renaming = false;
}
async on_tombstone(event) {
if (confirm(`Are you sure you want to delete this ${this.type}?`)) {
let message = {
type: this.type,
key: this.selectid,
parent: this.parent,
tombstone: {
date: new Date().valueOf(),
reason: 'archived',
},
};
print(message);
await tfrpc.rpc.appendMessage(this.whoami, message);
}
}
set_selected(id, value, by_user) {
this.selectid = id;
console.log('SEND', id, value?.name);
this.dispatchEvent(new CustomEvent('selected', {
bubbles: true,
detail: {
id: id,
value: value,
by_user: by_user,
},
}));
}
set_selected_by_name(name) {
console.log('set selected by name', name);
if (this.collections) {
for (let collection of this.collections) {
if (collection.name === name) {
this.set_selected(collection.id, collection);
this._select_by_name = undefined;
return;
}
}
}
this._select_by_name = name;
}
on_selected(event) {
if (this.collections) {
for (let collection of this.collections) {
if (collection.id === event.srcElement.value) {
this.set_selected(collection.id, collection, true);
break;
}
}
}
}
render() {
let self = this;
let state = JSON.stringify([this.whoami, this.ids, this.parent]);
if (state !== this.loaded_for) {
this.loaded_for = state;
this.loaded = this.load();
}
if (this.collections) {
if (this.selectname) {
for (let collection of this.collections) {
if (collection.name === this.selectname) {
this.set_selected(collection.id, collection);
break;
}
}
} else {
for (let collection of this.collections) {
if (collection.id === this.selectid) {
this.set_selected(collection.id, collection);
break;
}
}
}
}
return html`
<span style="display: inline-flex; flex-direction: row">
${this.collections_loading > 0 ? html`<div>Loading...</div>` : html`
<select @change=${this.on_selected}>
<option>(select)</option>
${this.collections?.map(x => html`<option value=${x.id} ?selected=${this.selectid === x.id}>${x.name}</option>`)}
</select>
`}
<span ?hidden=${!this.is_renaming}>
<label for="rename_name">Rename to:</label>
<input type="text" id="rename_name"></input>
<button @click=${this.on_rename}>Rename ${this.type}</button>
<button @click=${() => self.is_renaming = false}>x</button>
</span>
<button @click=${() => self.is_renaming = true} ?hidden=${this.is_renaming}></button>
<button @click=${self.on_tombstone}>🪦</button>
<span ?hidden=${!this.is_creating}>
<label for="create_name">New ${this.type} name:</label>
<input type="text" id="create_name"></input>
<button @click=${this.on_create}>Create ${this.type}</button>
<button @click=${() => self.is_creating = false}>x</button>
</span>
<button @click=${() => self.is_creating = true} ?hidden=${this.is_creating}>+</button>
</span>
`;
}
}
customElements.define('tf-collection', TfCollectionElement);