85 lines
1.9 KiB
JavaScript
85 lines
1.9 KiB
JavaScript
import * as tfrpc from '/tfrpc.js';
|
|
|
|
let g_db;
|
|
|
|
tfrpc.register(async function todo_get_all() {
|
|
let names = await todo_get_names();
|
|
let result = [];
|
|
for (let name of names) {
|
|
result.push({
|
|
name: name,
|
|
items: await todo_get(name),
|
|
});
|
|
}
|
|
return result;
|
|
});
|
|
|
|
async function todo_get_names() {
|
|
return JSON.parse((await g_db.get('files')) ?? '[]');
|
|
}
|
|
|
|
async function todo_add(list) {
|
|
let exchanged = false;
|
|
let tries = 10;
|
|
while (!exchanged && tries-- > 0) {
|
|
let original = await g_db.get('files');
|
|
let names = JSON.parse(original ?? '[]');
|
|
let set = new Set(names);
|
|
set.add(list);
|
|
names = JSON.stringify([...set].sort());
|
|
exchanged =
|
|
original === names || (await g_db.exchange('files', original, names));
|
|
}
|
|
return exchanged;
|
|
}
|
|
tfrpc.register(todo_add);
|
|
|
|
async function todo_remove(list) {
|
|
let exchanged = false;
|
|
let tries = 10;
|
|
while (!exchanged && tries-- > 0) {
|
|
let original = await g_db.get('files');
|
|
let names = JSON.parse(original ?? '[]');
|
|
let set = new Set(names);
|
|
set.delete(list);
|
|
names = JSON.stringify([...set].sort());
|
|
exchanged =
|
|
original === names || (await g_db.exchange('files', original, names));
|
|
}
|
|
await g_db.remove('list:' + list);
|
|
return exchanged;
|
|
}
|
|
tfrpc.register(todo_remove);
|
|
|
|
tfrpc.register(async function todo_rename(old_name, new_name) {
|
|
if (await g_db.get('list:' + new_name)) {
|
|
throw RuntimeError(`${new_name} already exists.`);
|
|
}
|
|
let list = await todo_get(old_name);
|
|
await todo_set(new_name, list);
|
|
await todo_add(new_name);
|
|
await todo_remove(old_name);
|
|
});
|
|
|
|
async function todo_get(list) {
|
|
try {
|
|
let value = await g_db.get('list:' + list);
|
|
return JSON.parse(value ?? '[]');
|
|
} catch (error) {
|
|
print(error);
|
|
return [];
|
|
}
|
|
}
|
|
|
|
async function todo_set(list, value) {
|
|
await g_db.set('list:' + list, JSON.stringify(value));
|
|
}
|
|
tfrpc.register(todo_set);
|
|
|
|
async function main() {
|
|
g_db = await database('todo');
|
|
await app.setDocument(utf8Decode(getFile('index.html')));
|
|
}
|
|
|
|
main();
|