Initial commit: Busbar Designer

Web tool for designing nickel/copper busbars over cylindrical-cell battery packs (21700, 18650) in hex holders. Flask + build123d backend exports STEP/DXF/SVG; vanilla JS frontend with live preview, multi-project SQLite persistence, snapshot history. Deploy scripts in deploy/ (proxmox-lxc.sh, install.sh, update.sh).
2026-05-24 18:59:50 +03:00
commit d8cb0dc06d
28 changed files with 4172 additions and 0 deletions
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+/* exporter.js — collect busbars into the backend payload and download file. */
+
+const Exporter = (() => {
+
+  function buildPayload(state, params) {
+    const cellsById = new Map(state.cells.map((c) => [c.id, c]));
+    const busbars = state.busbars.map((bb) => ({
+      name: bb.name,
+      color: bb.color,
+      shape: bb.shape || "panel",
+      strip_width:     params.stripWidth,
+      pad_radius:      params.padRadius,
+      hole_radius:     params.holeRadius,
+      hole_shape:      params.holeShape || "cross",
+      slit_width:      params.slitWidth,
+      neighbor_factor: params.neighborFactor,
+      cells: bb.cells
+        .map((cid) => {
+          const c = cellsById.get(cid);
+          return c ? { id: c.id, x: c.x, y: c.y } : null;
+        })
+        .filter(Boolean),
+    }));
+    return {
+      units: "mm",
+      extrude: !!params.extrude,
+      thickness: params.thickness,
+      busbars,
+    };
+  }
+
+  async function exportFormat(fmt, state, params) {
+    if (!state.busbars.length) {
+      alert("Create at least one busbar before exporting.");
+      return;
+    }
+    const payload = buildPayload(state, params);
+    const res = await fetch(`/api/export/${fmt}`, {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(payload),
+    });
+    if (!res.ok) {
+      let msg;
+      try { msg = (await res.json()).error; } catch { msg = await res.text(); }
+      alert(`Export failed: ${msg}`);
+      return;
+    }
+    const blob = await res.blob();
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = `busbars.${fmt}`;
+    document.body.appendChild(a);
+    a.click();
+    setTimeout(() => { URL.revokeObjectURL(url); a.remove(); }, 100);
+  }
+
+  return { exportFormat, buildPayload };
+})();