tftsr-devops_investigation/node_modules/fraction.js/examples/approx.js
Shaun Arman 8839075805 feat: initial implementation of TFTSR IT Triage & RCA application
Implements Phases 1-8 of the TFTSR implementation plan.

Rust backend (Tauri 2.x, src-tauri/):
- Multi-provider AI: OpenAI-compatible, Anthropic, Gemini, Mistral, Ollama
- PII detection engine: 11 regex patterns with overlap resolution
- SQLCipher AES-256 encrypted database with 10 versioned migrations
- 28 Tauri IPC commands for triage, analysis, document, and system ops
- Ollama: hardware probe, model recommendations, pull/delete with events
- RCA and blameless post-mortem Markdown document generators
- PDF export via printpdf
- Audit log: SHA-256 hash of every external data send
- Integration stubs for Confluence, ServiceNow, Azure DevOps (v0.2)

Frontend (React 18 + TypeScript + Vite, src/):
- 9 pages: full triage workflow NewIssue→LogUpload→Triage→Resolution→RCA→Postmortem→History+Settings
- 7 components: ChatWindow, TriageProgress, PiiDiffViewer, DocEditor, HardwareReport, ModelSelector, UI primitives
- 3 Zustand stores: session, settings (persisted), history
- Type-safe tauriCommands.ts matching Rust backend types exactly
- 8 IT domain system prompts (Linux, Windows, Network, K8s, DB, Virt, HW, Obs)

DevOps:
- .woodpecker/test.yml: rustfmt, clippy, cargo test, tsc, vitest on every push
- .woodpecker/release.yml: linux/amd64 + linux/arm64 builds, Gogs release upload

Verified:
- cargo check: zero errors
- tsc --noEmit: zero errors
- vitest run: 13/13 unit tests passing

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
2026-03-14 22:36:25 -05:00

55 lines
1.1 KiB
JavaScript

/*
Fraction.js v5.0.0 10/1/2024
https://raw.org/article/rational-numbers-in-javascript/
Copyright (c) 2024, Robert Eisele (https://raw.org/)
Licensed under the MIT license.
*/
const Fraction = require('fraction.js');
// Another rational approximation, not using Farey Sequences but Binary Search using the mediant
function approximate(p, precision) {
var num1 = Math.floor(p);
var den1 = 1;
var num2 = num1 + 1;
var den2 = 1;
if (p !== num1) {
while (den1 <= precision && den2 <= precision) {
var m = (num1 + num2) / (den1 + den2);
if (p === m) {
if (den1 + den2 <= precision) {
den1 += den2;
num1 += num2;
den2 = precision + 1;
} else if (den1 > den2) {
den2 = precision + 1;
} else {
den1 = precision + 1;
}
break;
} else if (p < m) {
num2 += num1;
den2 += den1;
} else {
num1 += num2;
den1 += den2;
}
}
}
if (den1 > precision) {
den1 = den2;
num1 = num2;
}
return new Fraction(num1, den1);
}