64 lines
1.8 KiB
TypeScript
64 lines
1.8 KiB
TypeScript
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import { Material } from "./parser.ts";
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import { Condition, parseInput, Workflow } from "./parser.ts";
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const input = await Deno.readTextFile("input.txt");
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const parsed = parseInput(input);
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// await Deno.writeTextFile("input.json",
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// JSON.stringify(parsed, null, 2));
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function ifCond(cond: Condition, material: Material) {
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const value = material[cond.quality];
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// console.log(value, cond.cond, cond.value);
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return cond.cond === ">" ? value > cond.value : (
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cond.cond === "<" ? value < cond.value :
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false);
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}
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class Executor {
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workflowTable: Map<string, Workflow>
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constructor(rules: Workflow[]) {
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this.workflowTable = new Map();
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for (const rule of rules) {
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this.workflowTable.set(rule.name, rule);
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}
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}
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execute(material: Material) {
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let gotoRules = this.workflowTable.get("in")!;
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for (; ;) {
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let dest = gotoRules.always;
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for (const gotoRule of gotoRules.rules) {
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if (ifCond(gotoRule.condition, material)) {
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dest = gotoRule.dest;
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break;
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}
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}
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if (dest === "A") return "A";
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if (dest === "R") return "R";
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gotoRules = this.workflowTable.get(dest)!;
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}
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}
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}
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function sumMaterials(materials: Material[]) {
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let sum = 0;
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for (const material of materials) {
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sum += material.x;
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sum += material.m;
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sum += material.a;
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sum += material.s;
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}
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return sum;
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}
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const executor = new Executor(parsed.rules);
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let acc = [];
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for (const material of parsed.materials) {
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const result = executor.execute(material);
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console.log(material ,result);
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if (result === "A") {
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acc.push(material);
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}
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}
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console.log(sumMaterials(acc));
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