33 lines
1.4 KiB
TypeScript
33 lines
1.4 KiB
TypeScript
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import type { AppConfig, Calibration, Mat3, Vec2 } from './types';
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export const DEFAULT_RENDER = { cutColor: '#00e5ff', rapidColor: '#ff9800', lineWidth: 1.5 };
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function isVec2Array(v: unknown): v is Vec2[] {
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return Array.isArray(v) && v.every((p) => Array.isArray(p) && p.length === 2 && p.every((n) => typeof n === 'number'));
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}
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function parseCalibration(c: unknown): Calibration | null {
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if (!c || typeof c !== 'object') return null;
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const obj = c as Record<string, unknown>;
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if (!isVec2Array(obj.imagePoints) || !isVec2Array(obj.machinePoints)) return null;
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if (!Array.isArray(obj.homography) || obj.homography.length !== 9) return null;
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if (!obj.homography.every((n) => typeof n === 'number')) return null;
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if (obj.imagePoints.length !== obj.machinePoints.length || obj.imagePoints.length < 4) return null;
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return {
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imagePoints: obj.imagePoints,
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machinePoints: obj.machinePoints,
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homography: obj.homography as Mat3,
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};
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}
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export async function loadConfig(url: string): Promise<AppConfig> {
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const res = await fetch(url);
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if (!res.ok) throw new Error(`Failed to load ${url}: ${res.status}`);
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const raw = (await res.json()) as Record<string, unknown>;
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return {
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streamUrl: typeof raw.streamUrl === 'string' ? raw.streamUrl : '',
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calibration: parseCalibration(raw.calibration),
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renderDefaults: { ...DEFAULT_RENDER, ...(raw.renderDefaults as object | undefined) },
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};
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}
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