"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.EvalJavascript = void 0;
const element_js_1 = require("../element.js");
const index_js_1 = require("../model/index.js");
const util = __importStar(require("../util/index.js"));
class EvalJavascript extends index_js_1.Pipe {
    constructor() {
        super(...arguments);
        this.mode = 'element';
        this.expression = 'return el;';
    }
    async apply(inputSet, ctx) {
        switch (this.mode) {
            case 'element':
                return await this.processElement(inputSet, ctx);
            case 'value':
                return await this.processValue(inputSet, ctx);
            case 'collection':
                return await this.processCollection(inputSet, ctx);
            default:
                throw util.scriptError(`Unknown mode: ${this.mode}`);
        }
    }
    async processElement(inputSet, ctx) {
        const js = util.compileAsyncJs(this.expression, 'ctx', 'el');
        const results = [];
        for (const el of inputSet) {
            const newEl = await js(ctx, el);
            if (newEl == null) {
                continue;
            }
            util.assertPlayback(newEl instanceof element_js_1.Element, 'Function should return an Element instance or null');
            results.push(newEl.clone());
        }
        return results;
    }
    async processValue(inputSet, ctx) {
        const js = util.compileAsyncJs(this.expression, 'ctx', 'el', 'value');
        const results = [];
        for (const el of inputSet) {
            let newData = await js(ctx, el, el.value);
            if (newData == null) {
                newData = null;
            }
            results.push(el.clone(newData));
        }
        return results;
    }
    async processCollection(inputSet, ctx) {
        const js = util.compileAsyncJs(this.expression, 'ctx', 'inputSet');
        const newEls = await js(ctx, inputSet);
        for (const el of newEls) {
            util.assertPlayback(el instanceof element_js_1.Element, 'Function should return an Array of Element instances');
        }
        return newEls;
    }
}
EvalJavascript.$type = 'Eval.javascript';
EvalJavascript.$help = `
Executes an arbitrary JavaScript code and returns its results.

### Use For

- advanced scripting
`;
__decorate([
    index_js_1.params.Enum({
        enum: ['element', 'value', 'collection'],
        help: `
Execution mode:

- value: the code has access to \`value\`, \`el\` and \`ctx\` objects
  and is expected to return a JSON-serializable value;
  the input set size and DOM nodes are maintained in this mode — only values are replaced
- element: the code has access to \`value\`, \`el\` and \`ctx\`
  objects and is expected to return a new Element instance with \`value\` attached to it;
  if code returns \`null\` then the element is discarded
- collection: the code has access to \`inputSet\` and \`ctx\` and is expected
  to return a new array of Element instances
`,
    }),
    __metadata("design:type", String)
], EvalJavascript.prototype, "mode", void 0);
__decorate([
    index_js_1.params.JavaScript(),
    __metadata("design:type", String)
], EvalJavascript.prototype, "expression", void 0);
exports.EvalJavascript = EvalJavascript;
//# sourceMappingURL=Eval.javascript.js.map