import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import vm from "node:vm";

const panel = readFileSync(new URL("./VaultPanel.qml", import.meta.url), "utf8");
const start = panel.indexOf("    function reconcileVisibleSelection()");
const end = panel.indexOf("    onSetupModeChanged:", start);
assert.ok(start >= 0 && end > start, "selection reconciliation is present");

const vaultService = {
    visibleItems: [],
    selectedId: "stale",
    detail: { id: "stale", title: "stale detail" },
    resultScrollPosition: 91,
    detailScrollPosition: 47,
    select(id) {
        this.selectedId = id;
    },
};
const context = { vaultService };
vm.createContext(context);
vm.runInContext(panel.slice(start, end), context);
context.reconcileVisibleSelection();
assert.equal(vaultService.selectedId, "", "zero matches clear stale selection");
assert.equal(Object.keys(vaultService.detail).length, 0, "zero matches clear stale details");
assert.equal(vaultService.resultScrollPosition, 0, "zero matches reset the empty result viewport");
assert.equal(vaultService.detailScrollPosition, 0, "zero matches reset the empty detail viewport");

vaultService.visibleItems = [{ id: "first" }, { id: "second" }];
vaultService.selectedId = "missing";
context.reconcileVisibleSelection();
assert.equal(vaultService.selectedId, "first", "filtering selects the first visible result");
vaultService.selectedId = "second";
context.reconcileVisibleSelection();
assert.equal(vaultService.selectedId, "second", "a still-visible selection is retained");

assert.match(panel, /property bool restoringScroll: true[\s\S]*onContentYChanged: if \(!restoringScroll\)/, "restoration does not overwrite retained scroll before layout");
assert.match(panel, /function onFrameSwapped\(\)[\s\S]*results\.restoreScroll\(\);[\s\S]*detailScroll\.restoreScroll\(\);/, "both result and detail scroll restore after a rendered layout");
assert.match(panel, /function revealItem\(item\)[\s\S]*item\.mapToItem\(resultColumn[\s\S]*onActiveChanged: if \(active\)\s*Qt\.callLater\(results\.revealItem, itemRow\)/, "keyboard selection reveals its result row");

console.log("vault-panel-repair.test.mjs: ALL PASS");