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import { ObjectField } from "./ObjectField";
import { CompiledScript, CompileScript, scriptingGlobal, ScriptOptions, CompileError, CompileResult, Scripting } from "../client/util/Scripting";
import { Copy, ToScriptString, ToString, Parent, SelfProxy } from "./FieldSymbols";
import { serializable, createSimpleSchema, map, primitive, object, deserialize, PropSchema, custom, SKIP } from "serializr";
import { Deserializable, autoObject } from "../client/util/SerializationHelper";
import { Doc, Field, Opt } from "./Doc";
import { Plugins, setter } from "./util";
import { computedFn } from "mobx-utils";
import { ProxyField } from "./Proxy";
import { Cast } from "./Types";
function optional(propSchema: PropSchema) {
return custom(value => {
if (value !== undefined) {
return propSchema.serializer(value);
}
return SKIP;
}, (jsonValue: any, context: any, oldValue: any, callback: (err: any, result: any) => void) => {
if (jsonValue !== undefined) {
return propSchema.deserializer(jsonValue, callback, context, oldValue);
}
return SKIP;
});
}
const optionsSchema = createSimpleSchema({
requiredType: true,
addReturn: true,
typecheck: true,
editable: true,
readonly: true,
params: optional(map(primitive()))
});
const scriptSchema = createSimpleSchema({
options: object(optionsSchema),
originalScript: true
});
async function deserializeScript(script: ScriptField) {
if (script.script.originalScript === 'getCopy(this.dragFactory, true)') {
return (script as any).script = (ScriptField.GetCopyOfDragFactory ?? (ScriptField.GetCopyOfDragFactory = ScriptField.MakeFunction('getCopy(this.dragFactory, true)')))?.script;
}
if (script.script.originalScript === 'links(self)') {
return (script as any).script = (ScriptField.LinksSelf ?? (ScriptField.LinksSelf = ComputedField.MakeFunction('links(self)')))?.script;
}
if (script.script.originalScript === 'openOnRight(getCopy(this.dragFactory, true))') {
return (script as any).script = (ScriptField.OpenOnRight ?? (ScriptField.OpenOnRight = ComputedField.MakeFunction('openOnRight(getCopy(this.dragFactory, true))')))?.script;
}
if (script.script.originalScript === 'deiconifyView(self)') {
return (script as any).script = (ScriptField.DeiconifyView ?? (ScriptField.DeiconifyView = ComputedField.MakeFunction('deiconifyView(self)')))?.script;
}
if (script.script.originalScript === 'convertToButtons(dragData)') {
return (script as any).script = (ScriptField.ConvertToButtons ?? (ScriptField.ConvertToButtons = ComputedField.MakeFunction('convertToButtons(dragData)', { dragData: "DocumentDragData" })))?.script;
}
const captures: ProxyField<Doc> = (script as any).captures;
if (captures) {
const doc = (await captures.value())!;
const captured: any = {};
const keys = Object.keys(doc);
const vals = await Promise.all(keys.map(key => doc[key]) as any);
keys.forEach((key, i) => captured[key] = vals[i]);
(script.script.options as any).capturedVariables = captured;
}
const comp = CompileScript(script.script.originalScript, script.script.options);
if (!comp.compiled) {
throw new Error("Couldn't compile loaded script");
}
(script as any).script = comp;
}
@scriptingGlobal
@Deserializable("script", deserializeScript)
export class ScriptField extends ObjectField {
@serializable(object(scriptSchema))
readonly script: CompiledScript;
@serializable(object(scriptSchema))
readonly setterscript: CompiledScript | undefined;
@serializable(autoObject())
private captures?: ProxyField<Doc>;
public static GetCopyOfDragFactory: Opt<ScriptField>;
public static LinksSelf: Opt<ScriptField>;
public static OpenOnRight: Opt<ScriptField>;
public static DeiconifyView: Opt<ScriptField>;
public static ConvertToButtons: Opt<ScriptField>;
constructor(script: CompiledScript, setterscript?: CompiledScript) {
super();
if (script?.options.capturedVariables) {
const doc = Doc.assign(new Doc, script.options.capturedVariables);
this.captures = new ProxyField(doc);
}
this.setterscript = setterscript;
this.script = script;
}
// init(callback: (res: Field) => any) {
// const options = this.options!;
// const keys = Object.keys(options.options.capturedIds);
// Server.GetFields(keys).then(fields => {
// let captured: { [name: string]: Field } = {};
// keys.forEach(key => captured[options.options.capturedIds[key]] = fields[key]);
// const opts: ScriptOptions = {
// addReturn: options.options.addReturn,
// params: options.options.params,
// requiredType: options.options.requiredType,
// capturedVariables: captured
// };
// const script = CompileScript(options.script, opts);
// if (!script.compiled) {
// throw new Error("Can't compile script");
// }
// this._script = script;
// callback(this);
// });
// }
[Copy](): ObjectField {
return new ScriptField(this.script, this.setterscript);
}
toString() {
return `${this.script.originalScript} + ${this.setterscript?.originalScript}`;
}
[ToScriptString]() {
return "script field";
}
[ToString]() {
return this.script.originalScript;
}
public static CompileScript(script: string, params: object = {}, addReturn = false, capturedVariables?: { [name: string]: Field }) {
const compiled = CompileScript(script, {
params: { this: Doc.name, self: Doc.name, _last_: "any", ...params },
typecheck: false,
editable: true,
addReturn: addReturn,
capturedVariables
});
return compiled;
}
public static MakeFunction(script: string, params: object = {}, capturedVariables?: { [name: string]: Field }) {
const compiled = ScriptField.CompileScript(script, params, true, capturedVariables);
return compiled.compiled ? new ScriptField(compiled) : undefined;
}
public static MakeScript(script: string, params: object = {}, capturedVariables?: { [name: string]: Field }) {
const compiled = ScriptField.CompileScript(script, params, false, capturedVariables);
return compiled.compiled ? new ScriptField(compiled) : undefined;
}
}
@scriptingGlobal
@Deserializable("computed", deserializeScript)
export class ComputedField extends ScriptField {
_lastComputedResult: any;
//TODO maybe add an observable cache based on what is passed in for doc, considering there shouldn't really be that many possible values for doc
value = computedFn((doc: Doc) => this._valueOutsideReaction(doc));
_valueOutsideReaction = (doc: Doc) => this._lastComputedResult = this.script.run({ this: doc, self: Cast(doc.rootDocument, Doc, null) || doc, _last_: this._lastComputedResult }, console.log).result;
[Copy](): ObjectField {
return new ComputedField(this.script, this.setterscript);
}
public static MakeScript(script: string, params: object = {}) {
const compiled = ScriptField.CompileScript(script, params, false);
return compiled.compiled ? new ComputedField(compiled) : undefined;
}
public static MakeFunction(script: string, params: object = {}, capturedVariables?: { [name: string]: Field }) {
const compiled = ScriptField.CompileScript(script, params, true, capturedVariables);
return compiled.compiled ? new ComputedField(compiled) : undefined;
}
public static MakeInterpolated(fieldKey: string, interpolatorKey: string) {
const getField = ScriptField.CompileScript(`getIndexVal(self['${fieldKey}-indexed'], self.${interpolatorKey})`, {}, true, {});
const setField = ScriptField.CompileScript(`(self['${fieldKey}-indexed'])[self.${interpolatorKey}] = value`, { value: "any" }, true, {});
return getField.compiled ? new ComputedField(getField, setField?.compiled ? setField : undefined) : undefined;
}
}
Scripting.addGlobal(function getIndexVal(list: any[], index: number) {
return list.reduce((p, x, i) => (i <= index && x !== undefined) || p === undefined ? x : p, undefined as any);
}, "returns the value at a given index of a list", "(list: any[], index: number)");
Scripting.addGlobal(function makeScript(script: string) {
return ScriptField.MakeScript(script);
}, "returns the value at a given index of a list", "(list: any[], index: number)");
export namespace ComputedField {
let useComputed = true;
export function DisableComputedFields() {
useComputed = false;
}
export function EnableComputedFields() {
useComputed = true;
}
export const undefined = "__undefined";
export function WithoutComputed<T>(fn: () => T) {
DisableComputedFields();
try {
return fn();
} finally {
EnableComputedFields();
}
}
export function initPlugin() {
Plugins.addGetterPlugin((doc, _, value) => {
if (useComputed && value instanceof ComputedField) {
return { value: value._valueOutsideReaction(doc), shouldReturn: true };
}
});
}
}
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