import type { PierModel } from '../core/geometry';
import { bearingEdgeDistances, pairEccentricities } from '../core/bearing-layout';
/** Drawing values (A, B of the solplate, mm) of the front and back bearings, to overlay on the model (승인 2026-10-26). */
export interface BearingPlanOverlay {
front: { A: number; B: number };
back: { A: number; B: number };
}
/** Number of pairs the 상세 보기 chips can show (①–⑩ in the mockup). */
export const PAIR_CHIP_LABELS = ['①', '②', '③', '④', '⑤', '⑥', '⑦', '⑧', '⑨', '⑩'];
/**
* 교량받침 상세 · 평면 for one pair (승인 2026-10-26): the model's solplates and blocks, with the drawing values overlaid
* as dashed outlines when given. 일체 draws the pair's block as one outline (2500 across the 교축 × 1200 along the 교각축);
* 분리 draws two 1200 × 1200 outlines. x is the 교축 (n), y the 교각축 (s, downward); units mm.
*/
export function bearingPlanSvg(m: PierModel, pairIndex: number, overlay?: BearingPlanOverlay): string {
const pair = pairEccentricities(m.blocks)[pairIndex];
if (!pair) return '';
const f = m.blocks.find((b) => b.no === pair.frontNo && b.row === '전열')!;
const k = m.blocks.find((b) => b.no === pair.backNo && b.row === '후열')!;
const nc = (f.n + k.n) / 2;
const sc = (f.s + k.s) / 2;
const X = (n: number) => (n - nc) * 1000;
const Y = (s: number) => (s - sc) * 1000;
const parts: string[] = [];
// Block outline(s): 일체 = one 2500 × 1200 outline; 분리 = two 1200 × 1200 outlines.
const ib = m.integratedBlocks.find((x) => x.frontNo === pair.frontNo);
if (ib) {
parts.push(``);
parts.push(`C3 2500 (일체 블록 윤곽)`);
} else {
for (const b of [f, k]) {
parts.push(``);
}
}
// Solplates: the model's plan (A across the 교축, B along the 교각축), centred on each bearing.
for (const b of [f, k]) {
if (b.plan) {
const { A, B } = b.plan;
parts.push(``);
}
}
// Drawing values overlaid (dashed red) on the same bearings (#1 겹쳐 보이게).
if (overlay) {
for (const [b, v] of [[f, overlay.front], [k, overlay.back]] as const) {
parts.push(``);
}
}
// Bearing centres and labels.
for (const b of [f, k]) {
parts.push(``);
parts.push(`${b.no}`);
}
// Dimensions: C2 between the bearing centres, C4 and C5 from the bearing to the block edges (교축).
const dist = bearingEdgeDistances(m);
const d = (no: number) => dist.find((x) => x.no === no)!;
parts.push(`C2 ${Math.round(Math.abs(k.n - f.n) * 1000)}`);
parts.push(`C4 ${Math.round(d(f.no).leftMm ?? 0)}`);
parts.push(`C5 ${Math.round(d(k.no).rightMm ?? 0)}`);
return ``;
}