1 files changed, 84 insertions, 0 deletions
diff --git a/web/static/ride-detail-boundaries.js b/web/static/ride-detail-boundaries.js
new file mode 100644
index 0000000..98e0990
--- /dev/null
+++ b/web/static/ride-detail-boundaries.js
@@ -0,0 +1,84 @@
+import { climbMetrics, formatDistance, formatElevation } from "./ride-detail-logic.js";
+
+export class RideBoundaryController {
+  constructor({ forms, points, climbBounds, onBoundaryChanged, onPointSelected, setMessage }) {
+    this.forms = forms;
+    this.points = points;
+    this.climbBounds = climbBounds;
+    this.onBoundaryChanged = onBoundaryChanged;
+    this.onPointSelected = onPointSelected;
+    this.setMessage = setMessage;
+    this.activeBoundary = null;
+    this.initialize();
+  }
+
+  initialize() {
+    for (const form of this.forms) {
+      const item = /** @type {HTMLElement} */ (form.closest("[data-climb-item]"));
+      const climbIndex = Number.parseInt(item.dataset.climbIndex, 10);
+      this.climbBounds[climbIndex] = {
+        startIndex: Number.parseInt(/** @type {HTMLInputElement} */ (form.querySelector('[data-boundary-input="start"]')).value, 10),
+        endIndex: Number.parseInt(/** @type {HTMLInputElement} */ (form.querySelector('[data-boundary-input="end"]')).value, 10),
+      };
+      this.updatePreview(form);
+      const buttons = [...form.querySelectorAll("[data-boundary-button]")].map((button) => /** @type {HTMLElement} */ (button));
+      for (const button of buttons) {
+        button.addEventListener("click", () => {
+          this.clearSelection();
+          this.activeBoundary = { form, target: button.dataset.boundaryButton, source: button.dataset.boundarySource };
+          button.classList.add("active");
+          const surface = this.activeBoundary.source === "map" ? "map" : "profile";
+          this.setMessage(`Click the ${surface} to select the ${this.activeBoundary.target} point.`);
+        });
+      }
+    }
+  }
+
+  isSelecting(source) {
+    return this.activeBoundary?.source === source;
+  }
+
+  clearSelection() {
+    this.activeBoundary = null;
+    for (const form of this.forms) {
+      for (const button of form.querySelectorAll("[data-boundary-button]")) button.classList.remove("active");
+    }
+  }
+
+  choosePoint(index) {
+    if (!this.activeBoundary) return;
+    const { form, target } = this.activeBoundary;
+    const item = /** @type {HTMLElement} */ (form.closest("[data-climb-item]"));
+    const climbIndex = Number.parseInt(item.dataset.climbIndex, 10);
+    const input = /** @type {HTMLInputElement} */ (form.querySelector(`[data-boundary-input="${target}"]`));
+    const output = /** @type {HTMLOutputElement} */ (form.querySelector(`[data-boundary-output="${target}"]`));
+    input.value = index;
+    output.textContent = this.boundaryLabel(index);
+    this.climbBounds[climbIndex][`${target}Index`] = index;
+    this.updatePreview(form);
+    this.onBoundaryChanged(climbIndex);
+    this.clearSelection();
+    this.onPointSelected(index);
+  }
+
+  updatePreview(form) {
+    const preview = /** @type {HTMLElement} */ (form.querySelector("[data-boundary-preview]"));
+    const item = /** @type {HTMLElement} */ (form.closest("[data-climb-item]"));
+    const climbIndex = Number.parseInt(item.dataset.climbIndex, 10);
+    const metrics = climbMetrics(this.points, this.climbBounds[climbIndex]);
+    if (!metrics) {
+      preview.textContent = "Choose an end point after the start point.";
+      return;
+    }
+    const summary = /** @type {HTMLElement} */ (item.querySelector("[data-climb-summary]"));
+    const metricsOutput = /** @type {HTMLElement} */ (item.querySelector("[data-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 ${metrics.cotacol.toFixed(1)}`;
+  }
+
+  boundaryLabel(index) {
+    const point = this.points[index];
+    return `${formatDistance(point.distanceKm)} · ${formatElevation(point.elevationM)}`;
+  }
+}