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import { climbMetrics, climbSample, formatDistance, formatElevation } from "./ride-detail-logic.js";
import { requireElement } from "./dom.js";
import type { BoundarySource, BoundaryTarget, ClimbBounds, RideProfilePoint } from "./types.js";
interface ActiveBoundary {
form: HTMLFormElement;
target: BoundaryTarget;
source: BoundarySource;
}
interface RideBoundaryControllerOptions {
forms: HTMLFormElement[];
points: RideProfilePoint[];
climbBounds: ClimbBounds[];
onBoundaryChanged: (index: number) => void;
onPointSelected: (index: number) => void;
setMessage: (message: string) => void;
}
export class RideBoundaryController {
private readonly forms: HTMLFormElement[];
private readonly points: RideProfilePoint[];
private readonly climbBounds: ClimbBounds[];
private readonly onBoundaryChanged: (index: number) => void;
private readonly onPointSelected: (index: number) => void;
private readonly setMessage: (message: string) => void;
private activeBoundary: ActiveBoundary | null;
constructor({ forms, points, climbBounds, onBoundaryChanged, onPointSelected, setMessage }: RideBoundaryControllerOptions) {
this.forms = forms;
this.points = points;
this.climbBounds = climbBounds;
this.onBoundaryChanged = onBoundaryChanged;
this.onPointSelected = onPointSelected;
this.setMessage = setMessage;
this.activeBoundary = null;
this.initialize();
}
initialize(): void {
for (const form of this.forms) {
const item = form.closest<HTMLElement>("[data-climb-item]");
if (!item) continue;
const climbIndex = Number.parseInt(item.dataset.climbIndex ?? "", 10);
this.climbBounds[climbIndex] = {
startIndex: Number.parseInt(
requireElement(form.querySelector<HTMLInputElement>('[data-boundary-input="start"]'), "start boundary input").value,
10,
),
endIndex: Number.parseInt(
requireElement(form.querySelector<HTMLInputElement>('[data-boundary-input="end"]'), "end boundary input").value,
10,
),
};
this.updatePreview(form);
const buttons = [...form.querySelectorAll<HTMLElement>("[data-boundary-button]")];
for (const button of buttons) {
button.addEventListener("click", () => {
this.clearSelection();
this.activeBoundary = {
form,
target: button.dataset.boundaryButton as BoundaryTarget,
source: button.dataset.boundarySource as BoundarySource,
};
button.classList.add("active");
const surface = this.activeBoundary.source === "map" ? "map" : "profile";
this.setMessage(`Click the ${surface} to select the ${this.activeBoundary.target} point.`);
});
}
}
}
isSelecting(source: BoundarySource): boolean {
return this.activeBoundary?.source === source;
}
clearSelection(): void {
this.activeBoundary = null;
for (const form of this.forms) {
for (const button of form.querySelectorAll("[data-boundary-button]")) button.classList.remove("active");
}
}
choosePoint(index: number): void {
if (!this.activeBoundary) return;
const { form, target } = this.activeBoundary;
const item = form.closest<HTMLElement>("[data-climb-item]");
if (!item) return;
const climbIndex = Number.parseInt(item.dataset.climbIndex ?? "", 10);
const input = requireElement(form.querySelector<HTMLInputElement>(`[data-boundary-input="${target}"]`), `${target} boundary input`);
const output = requireElement(form.querySelector<HTMLOutputElement>(`[data-boundary-output="${target}"]`), `${target} boundary output`);
input.value = String(index);
output.textContent = this.boundaryLabel(index);
if (target === "start") this.climbBounds[climbIndex].startIndex = index;
else this.climbBounds[climbIndex].endIndex = index;
this.updatePreview(form);
this.onBoundaryChanged(climbIndex);
this.clearSelection();
this.onPointSelected(index);
}
updatePreview(form: HTMLFormElement): void {
const preview = requireElement(form.querySelector<HTMLElement>("[data-boundary-preview]"), "boundary preview");
const item = form.closest<HTMLElement>("[data-climb-item]");
if (!item) return;
const climbIndex = Number.parseInt(item.dataset.climbIndex ?? "", 10);
const bounds = this.climbBounds[climbIndex];
const metrics = climbMetrics(this.points, bounds);
if (!bounds || !metrics) {
preview.textContent = "Choose an end point after the start point.";
return;
}
this.syncSnapshot(form, bounds);
const summary = requireElement(item.querySelector<HTMLElement>("[data-climb-summary]"), "climb summary");
const metricsOutput = requireElement(item.querySelector<HTMLElement>("[data-climb-metrics]"), "climb metrics");
summary.textContent = `${formatDistance(metrics.start.distanceKm)}–${formatDistance(metrics.end.distanceKm)}`;
metricsOutput.textContent = `${metrics.category} · ${formatDistance(metrics.distanceKm)} at ${metrics.slope.toFixed(1)}% · Cotacol ${metrics.cotacol.toFixed(1)}`;
preview.textContent = `Preview: ${formatDistance(metrics.distanceKm)} · ${metrics.elevationGain >= 0 ? "+" : ""}${formatElevation(metrics.elevationGain)} · ${metrics.slope.toFixed(1)}% · Cotacol ${metrics.cotacol.toFixed(1)}`;
}
// syncSnapshot fills the fields the preview save posts: the preview ride is never persisted.
syncSnapshot(form: HTMLFormElement, bounds: ClimbBounds): void {
const sample = climbSample(this.points, bounds);
if (!sample) return;
const snapshot: Array<[string, number]> = [
["start_lat", this.points[bounds.startIndex].latitude],
["start_lon", this.points[bounds.startIndex].longitude],
["end_lat", this.points[bounds.endIndex].latitude],
["end_lon", this.points[bounds.endIndex].longitude],
["sample_distance_m", sample.distanceM],
["sample_elevation_gain_m", sample.elevationGainM],
];
for (const [name, value] of snapshot) {
const input = form.querySelector<HTMLInputElement>(`input[name="${name}"]`);
if (input) input.value = String(value);
}
}
boundaryLabel(index: number): string {
const point = this.points[index];
const idx = point.index ?? index;
return `#${idx} · ${formatDistance(point.distanceKm)} · ${formatElevation(point.elevationM)}`;
}
}
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