mirror of
https://github.com/paricafe/misskey.git
synced 2024-11-30 01:16:43 -06:00
264 lines
8.1 KiB
TypeScript
264 lines
8.1 KiB
TypeScript
import autobind from 'autobind-decorator';
|
|
import * as seedrandom from 'seedrandom';
|
|
import { Variable, PageVar, envVarsDef, funcDefs, Block, isFnBlock } from '.';
|
|
|
|
type Fn = {
|
|
slots: string[];
|
|
exec: (args: Record<string, any>) => ReturnType<ASEvaluator['evaluate']>;
|
|
};
|
|
|
|
/**
|
|
* AiScript evaluator
|
|
*/
|
|
export class ASEvaluator {
|
|
private variables: Variable[];
|
|
private pageVars: PageVar[];
|
|
private envVars: Record<keyof typeof envVarsDef, any>;
|
|
|
|
private opts: {
|
|
randomSeed: string; user?: any; visitor?: any; page?: any; url?: string; version: string;
|
|
};
|
|
|
|
constructor(variables: Variable[], pageVars: PageVar[], opts: ASEvaluator['opts']) {
|
|
this.variables = variables;
|
|
this.pageVars = pageVars;
|
|
this.opts = opts;
|
|
|
|
const date = new Date();
|
|
|
|
this.envVars = {
|
|
AI: 'kawaii',
|
|
VERSION: opts.version,
|
|
URL: opts.page ? `${opts.url}/@${opts.page.user.username}/pages/${opts.page.name}` : '',
|
|
LOGIN: opts.visitor != null,
|
|
NAME: opts.visitor ? opts.visitor.name || opts.visitor.username : '',
|
|
USERNAME: opts.visitor ? opts.visitor.username : '',
|
|
USERID: opts.visitor ? opts.visitor.id : '',
|
|
NOTES_COUNT: opts.visitor ? opts.visitor.notesCount : 0,
|
|
FOLLOWERS_COUNT: opts.visitor ? opts.visitor.followersCount : 0,
|
|
FOLLOWING_COUNT: opts.visitor ? opts.visitor.followingCount : 0,
|
|
IS_CAT: opts.visitor ? opts.visitor.isCat : false,
|
|
MY_NOTES_COUNT: opts.user ? opts.user.notesCount : 0,
|
|
MY_FOLLOWERS_COUNT: opts.user ? opts.user.followersCount : 0,
|
|
MY_FOLLOWING_COUNT: opts.user ? opts.user.followingCount : 0,
|
|
SEED: opts.randomSeed ? opts.randomSeed : '',
|
|
YMD: `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`,
|
|
NULL: null
|
|
};
|
|
}
|
|
|
|
@autobind
|
|
public updatePageVar(name: string, value: any) {
|
|
const pageVar = this.pageVars.find(v => v.name === name);
|
|
if (pageVar !== undefined) {
|
|
pageVar.value = value;
|
|
} else {
|
|
throw new AiScriptError(`No such page var '${name}'`);
|
|
}
|
|
}
|
|
|
|
@autobind
|
|
public updateRandomSeed(seed: string) {
|
|
this.opts.randomSeed = seed;
|
|
this.envVars.SEED = seed;
|
|
}
|
|
|
|
@autobind
|
|
private interpolate(str: string, scope: Scope) {
|
|
return str.replace(/{(.+?)}/g, match => {
|
|
const v = scope.getState(match.slice(1, -1).trim());
|
|
return v == null ? 'NULL' : v.toString();
|
|
});
|
|
}
|
|
|
|
@autobind
|
|
public evaluateVars(): Record<string, any> {
|
|
const values: Record<string, any> = {};
|
|
|
|
for (const [k, v] of Object.entries(this.envVars)) {
|
|
values[k] = v;
|
|
}
|
|
|
|
for (const v of this.pageVars) {
|
|
values[v.name] = v.value;
|
|
}
|
|
|
|
for (const v of this.variables) {
|
|
values[v.name] = this.evaluate(v, new Scope([values]));
|
|
}
|
|
|
|
return values;
|
|
}
|
|
|
|
@autobind
|
|
private evaluate(block: Block, scope: Scope): any {
|
|
if (block.type === null) {
|
|
return null;
|
|
}
|
|
|
|
if (block.type === 'number') {
|
|
return parseInt(block.value, 10);
|
|
}
|
|
|
|
if (block.type === 'text' || block.type === 'multiLineText') {
|
|
return this.interpolate(block.value || '', scope);
|
|
}
|
|
|
|
if (block.type === 'textList') {
|
|
return this.interpolate(block.value || '', scope).trim().split('\n');
|
|
}
|
|
|
|
if (block.type === 'ref') {
|
|
return scope.getState(block.value);
|
|
}
|
|
|
|
if (isFnBlock(block)) { // ユーザー関数定義
|
|
return {
|
|
slots: block.value.slots.map(x => x.name),
|
|
exec: (slotArg: Record<string, any>) => {
|
|
return this.evaluate(block.value.expression, scope.createChildScope(slotArg, block.id));
|
|
}
|
|
} as Fn;
|
|
}
|
|
|
|
if (block.type.startsWith('fn:')) { // ユーザー関数呼び出し
|
|
const fnName = block.type.split(':')[1];
|
|
const fn = scope.getState(fnName);
|
|
const args = {} as Record<string, any>;
|
|
for (let i = 0; i < fn.slots.length; i++) {
|
|
const name = fn.slots[i];
|
|
args[name] = this.evaluate(block.args[i], scope);
|
|
}
|
|
return fn.exec(args);
|
|
}
|
|
|
|
if (block.args === undefined) return null;
|
|
|
|
const date = new Date();
|
|
const day = `${this.opts.visitor ? this.opts.visitor.id : ''} ${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`;
|
|
|
|
const funcs: { [p in keyof typeof funcDefs]: Function } = {
|
|
not: (a: boolean) => !a,
|
|
or: (a: boolean, b: boolean) => a || b,
|
|
and: (a: boolean, b: boolean) => a && b,
|
|
eq: (a: any, b: any) => a === b,
|
|
notEq: (a: any, b: any) => a !== b,
|
|
gt: (a: number, b: number) => a > b,
|
|
lt: (a: number, b: number) => a < b,
|
|
gtEq: (a: number, b: number) => a >= b,
|
|
ltEq: (a: number, b: number) => a <= b,
|
|
if: (bool: boolean, a: any, b: any) => bool ? a : b,
|
|
for: (times: number, fn: Fn) => {
|
|
const result = [];
|
|
for (let i = 0; i < times; i++) {
|
|
result.push(fn.exec({
|
|
[fn.slots[0]]: i + 1
|
|
}));
|
|
}
|
|
return result;
|
|
},
|
|
add: (a: number, b: number) => a + b,
|
|
subtract: (a: number, b: number) => a - b,
|
|
multiply: (a: number, b: number) => a * b,
|
|
divide: (a: number, b: number) => a / b,
|
|
mod: (a: number, b: number) => a % b,
|
|
strLen: (a: string) => a.length,
|
|
strPick: (a: string, b: number) => a[b - 1],
|
|
strReplace: (a: string, b: string, c: string) => a.split(b).join(c),
|
|
strReverse: (a: string) => a.split('').reverse().join(''),
|
|
join: (texts: string[], separator: string) => texts.join(separator || ''),
|
|
stringToNumber: (a: string) => parseInt(a),
|
|
numberToString: (a: number) => a.toString(),
|
|
splitStrByLine: (a: string) => a.split('\n'),
|
|
pick: (list: any[], i: number) => list[i - 1],
|
|
random: (probability: number) => Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * 100) < probability,
|
|
rannum: (min: number, max: number) => min + Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * (max - min + 1)),
|
|
randomPick: (list: any[]) => list[Math.floor(seedrandom(`${this.opts.randomSeed}:${block.id}`)() * list.length)],
|
|
dailyRandom: (probability: number) => Math.floor(seedrandom(`${day}:${block.id}`)() * 100) < probability,
|
|
dailyRannum: (min: number, max: number) => min + Math.floor(seedrandom(`${day}:${block.id}`)() * (max - min + 1)),
|
|
dailyRandomPick: (list: any[]) => list[Math.floor(seedrandom(`${day}:${block.id}`)() * list.length)],
|
|
seedRandom: (seed: any, probability: number) => Math.floor(seedrandom(seed)() * 100) < probability,
|
|
seedRannum: (seed: any, min: number, max: number) => min + Math.floor(seedrandom(seed)() * (max - min + 1)),
|
|
seedRandomPick: (seed: any, list: any[]) => list[Math.floor(seedrandom(seed)() * list.length)],
|
|
DRPWPM: (list: string[]) => {
|
|
const xs = [];
|
|
let totalFactor = 0;
|
|
for (const x of list) {
|
|
const parts = x.split(' ');
|
|
const factor = parseInt(parts.pop()!, 10);
|
|
const text = parts.join(' ');
|
|
totalFactor += factor;
|
|
xs.push({ factor, text });
|
|
}
|
|
const r = seedrandom(`${day}:${block.id}`)() * totalFactor;
|
|
let stackedFactor = 0;
|
|
for (const x of xs) {
|
|
if (r >= stackedFactor && r <= x.factor) {
|
|
return x.text;
|
|
} else {
|
|
stackedFactor += x.factor;
|
|
}
|
|
}
|
|
return xs[0].text;
|
|
},
|
|
};
|
|
|
|
const fnName = block.type;
|
|
const fn = (funcs as any)[fnName];
|
|
if (fn == null) {
|
|
throw new AiScriptError(`No such function '${fnName}'`);
|
|
} else {
|
|
return fn(...block.args.map(x => this.evaluate(x, scope)));
|
|
}
|
|
}
|
|
}
|
|
|
|
class AiScriptError extends Error {
|
|
public info?: any;
|
|
|
|
constructor(message: string, info?: any) {
|
|
super(message);
|
|
|
|
this.info = info;
|
|
|
|
// Maintains proper stack trace for where our error was thrown (only available on V8)
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(this, AiScriptError);
|
|
}
|
|
}
|
|
}
|
|
|
|
class Scope {
|
|
private layerdStates: Record<string, any>[];
|
|
public name: string;
|
|
|
|
constructor(layerdStates: Scope['layerdStates'], name?: Scope['name']) {
|
|
this.layerdStates = layerdStates;
|
|
this.name = name || 'anonymous';
|
|
}
|
|
|
|
@autobind
|
|
public createChildScope(states: Record<string, any>, name?: Scope['name']): Scope {
|
|
const layer = [states, ...this.layerdStates];
|
|
return new Scope(layer, name);
|
|
}
|
|
|
|
/**
|
|
* 指定した名前の変数の値を取得します
|
|
* @param name 変数名
|
|
*/
|
|
@autobind
|
|
public getState(name: string): any {
|
|
for (const later of this.layerdStates) {
|
|
const state = later[name];
|
|
if (state !== undefined) {
|
|
return state;
|
|
}
|
|
}
|
|
|
|
throw new AiScriptError(
|
|
`No such variable '${name}' in scope '${this.name}'`, {
|
|
scope: this.layerdStates
|
|
});
|
|
}
|
|
}
|