/* app-render-routes.js - route list rendering for the Bergamo FSR demo */

(function () {
  'use strict';

  var FSR = window.FSR = window.FSR || {};
  var utils = FSR.utils;

  FSR.createRouteListRenderer = function (options) {
    var SF = options.SF;
    return { renderRouteCards: renderRouteCards };

    function renderRouteCards(plan, routeGeometry) {
      var routeGeometryById = geometryByRouteId(routeGeometry);
      options.routeCards.innerHTML = '';
      (plan.technician_routes || []).forEach(function (route, routeIdx) {
        var stats = utils.routeStats(plan, route);
        var routeId = routeKey(route, routeIdx);
        var focusedRouteId = options.getFocusedRouteId ? options.getFocusedRouteId() : null;
        var isFocused = focusedRouteId === routeId;
        var card = SF.el('div', {
          className: 'fsr-route-row' + (isFocused ? ' is-focused' : ''),
          role: 'button',
          tabIndex: 0,
          dataset: { routeId: routeId },
        });
        card.addEventListener('click', function () { focusRoute(routeId); });
        card.addEventListener('keydown', function (event) {
          if (event.key === 'Enter' || event.key === ' ') {
            event.preventDefault();
            focusRoute(routeId);
          }
        });

        var top = SF.el('div', { className: 'fsr-route-row__top' });
        top.appendChild(SF.el('strong', null, route.technician_name || route.id || ('Technician ' + (routeIdx + 1))));
        top.appendChild(SF.el('span', { className: 'fsr-route-tag' }, String((route.visits || []).length) + ' stops'));
        card.appendChild(top);

        var meta = SF.el('div', { className: 'fsr-route-row__meta' });
        meta.appendChild(SF.el('span', null, utils.formatDuration(stats.travelMinutes) + ' travel'));
        meta.appendChild(SF.el('span', null, utils.formatDuration(stats.serviceMinutes) + ' service'));
        meta.appendChild(SF.el('span', null, route.territory || 'no territory'));
        if (stats.lateMinutes) meta.appendChild(SF.el('span', null, utils.formatDuration(stats.lateMinutes) + ' late'));
        if (stats.overtimeMinutes) meta.appendChild(SF.el('span', null, utils.formatDuration(stats.overtimeMinutes) + ' overtime'));
        if (stats.unreachable || stats.missingSkills || stats.missingParts) {
          meta.appendChild(SF.el('span', null, String(stats.unreachable + stats.missingSkills + stats.missingParts) + ' hard issues'));
        }
        if (hasGeometryGaps(routeGeometryById[routeId])) meta.appendChild(SF.el('span', null, 'Geometry gaps'));
        card.appendChild(meta);

        var action = SF.createButton({
          text: isFocused ? 'Show All' : 'Highlight',
          variant: isFocused ? 'default' : 'ghost',
        });
        action.addEventListener('click', function (event) {
          event.stopPropagation();
          focusRoute(routeId);
        });
        card.appendChild(SF.el('div', { className: 'fsr-route-row__actions' }, action));
        options.routeCards.appendChild(card);
      });
      renderUnassignedCard(plan);
    }

    function renderUnassignedCard(plan) {
      var assigned = utils.assignedVisitSet(plan.technician_routes || []);
      var rows = (plan.service_visits || []).reduce(function (items, visit, idx) {
        if (assigned[idx]) return items;
        items.push([
          visit.customer || visit.name || visit.id,
          utils.timeLabel(visit.earliest_minute) + '-' + utils.timeLabel(visit.latest_minute),
          utils.formatDuration(visit.duration_minutes || 0),
        ]);
        return items;
      }, []);
      if (!rows.length) return;

      var card = SF.el('div', { className: 'fsr-route-empty' });
      card.appendChild(SF.el('strong', null, 'Unassigned visits'));
      card.appendChild(SF.createTable({ columns: ['Visit', 'Window', 'Duration'], rows: rows }));
      options.routeCards.appendChild(card);
    }

    function geometryByRouteId(routeGeometry) {
      return ((routeGeometry && routeGeometry.routes) || []).reduce(function (index, route) {
        index[String(route.routeId)] = route;
        return index;
      }, {});
    }

    function hasGeometryGaps(routeGeometry) {
      return !!routeGeometry && (routeGeometry.segments || []).some(function (segment) {
        return segment.geometryStatus !== 'ROUTED';
      });
    }

    function focusRoute(routeId) {
      if (options.onFocusRoute) options.onFocusRoute(routeId);
    }

    function routeKey(route, idx) {
      return String(route.id || route.technician_name || ('route-' + idx));
    }
  };
})();