// Center on a default point
var map = L.map('map', { zoomControl: false, doubleClickZoom: false }).setView([53.866237, 10.676289], 18);

// Add OSM tiles
L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
  maxZoom: 19,
  attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
}).addTo(map);

var userIcon = L.icon({
  iconUrl: '/maps-arrow.svg',  // Add a motorcycle icon to your static folder
  iconSize: [40, 40]
});

// Get users location
if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(function(position) {
        var lat = position.coords.latitude;
        var lon = position.coords.longitude;
        map.setView([lat, lon], 14);
        L.marker([lat, lon], {icon: userIcon}).addTo(map).bindPopup('You are here!');
    });
}

// Custom Bootstrap zoom controls
document.addEventListener('DOMContentLoaded', function() {
    var zoomInBtn = document.getElementById('zoomInBtn');
    var zoomOutBtn = document.getElementById('zoomOutBtn');
    var themeToggle = document.getElementById('themeToggle');
    var clearRouteBtn = document.getElementById('clearRouteBtn');
    var twistiness = document.getElementById('twistiness');
    var twistinessValue = document.getElementById('twistinessValue');
    var highwayPref = document.getElementById('highwayPref');
    var highwayPrefValue = document.getElementById('highwayPrefValue');
    var exportModeSel = document.getElementById('exportMode');
    var voiceToggle = document.getElementById('voiceToggle');
    var roundTripToggle = document.getElementById('roundTripToggle');
    var roundTripKm = document.getElementById('roundTripKm');
    var roundTripBtn = document.getElementById('roundTripBtn');
    var roundTripNoRepeat = document.getElementById('roundTripNoRepeat');
    var roundTripDir = document.getElementById('roundTripDir');
    var roundTripScenic = document.getElementById('roundTripScenic');
    var roundTripIsochrone = document.getElementById('roundTripIsochrone');
    var isochroneMinutes = document.getElementById('isochroneMinutes');
    if (zoomInBtn && zoomOutBtn) {
        zoomInBtn.addEventListener('click', function() {
            map.zoomIn();
        });
        zoomOutBtn.addEventListener('click', function() {
            map.zoomOut();
        });
    }

    // Theme toggle with persistence (Dracula-like)
    function applyTheme(theme) {
        if (theme === 'dark') {
            document.documentElement.setAttribute('data-theme', 'dark');
            if (themeToggle) themeToggle.textContent = '☀️';
        } else {
            document.documentElement.removeAttribute('data-theme');
            if (themeToggle) themeToggle.textContent = '🌙';
        }
    }
    var savedTheme = localStorage.getItem('freemoto-theme');
    if (!savedTheme || savedTheme === 'auto') {
        var prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
        applyTheme(prefersDark ? 'dark' : 'light');
        if (!savedTheme) localStorage.setItem('freemoto-theme', 'auto');
    } else {
        applyTheme(savedTheme);
    }
    if (themeToggle) {
        themeToggle.addEventListener('click', function() {
            var next = (localStorage.getItem('freemoto-theme') || 'light') === 'dark' ? 'light' : 'dark';
            localStorage.setItem('freemoto-theme', next);
            applyTheme(next);
        });
    }

    // Clear route button
    if (clearRouteBtn && typeof window.resetMarkers === 'function') {
        clearRouteBtn.addEventListener('click', function() {
            window.resetMarkers();
        });
    }

    // Twistiness slider
    function applyTwistiness(val) {
        if (twistinessValue) twistinessValue.textContent = String(val);
        localStorage.setItem('freemoto-twistiness', String(val));
    }
    var savedTwist = parseInt(localStorage.getItem('freemoto-twistiness') || '50', 10);
    if (!isNaN(savedTwist) && twistiness) {
        twistiness.value = savedTwist;
        applyTwistiness(savedTwist);
    }
    if (twistiness) {
        twistiness.addEventListener('input', function(e){
            var v = parseInt(e.target.value, 10);
            applyTwistiness(v);
        });
        twistiness.addEventListener('change', function(){
            if (typeof window.recalculateRoute === 'function') {
                window.recalculateRoute();
            }
        });
    }

    // Highway preference slider (0..100 -> 0..1 use_highways)
    function applyHighwayPref(val) {
        if (highwayPrefValue) highwayPrefValue.textContent = String(val);
        localStorage.setItem('freemoto-highways', String(val));
    }
    var savedHigh = parseInt(localStorage.getItem('freemoto-highways') || '50', 10);
    if (!isNaN(savedHigh) && highwayPref) {
        highwayPref.value = savedHigh;
        applyHighwayPref(savedHigh);
    }
    if (highwayPref) {
        highwayPref.addEventListener('input', function(e){
            var v = parseInt(e.target.value, 10);
            applyHighwayPref(v);
        });
        highwayPref.addEventListener('change', function(){
            if (typeof window.recalculateRoute === 'function') {
                window.recalculateRoute();
            }
        });
    }

    // Persist export mode
    if (exportModeSel) {
        var savedMode = localStorage.getItem('freemoto-export-mode') || 'both';
        exportModeSel.value = savedMode;
        exportModeSel.addEventListener('change', function(){
            localStorage.setItem('freemoto-export-mode', exportModeSel.value);
        });
    }

    // Persist voice toggle
    if (voiceToggle) {
        var savedVoice = localStorage.getItem('freemoto-voice') === '1';
        voiceToggle.checked = savedVoice;
        voiceToggle.addEventListener('change', function(){
            localStorage.setItem('freemoto-voice', voiceToggle.checked ? '1' : '0');
        });
    }

    // Round Trip settings persistence
    if (roundTripToggle) {
        var savedRT = localStorage.getItem('freemoto-roundtrip') === '1';
        roundTripToggle.checked = savedRT;
        roundTripToggle.addEventListener('change', function(){
            localStorage.setItem('freemoto-roundtrip', roundTripToggle.checked ? '1' : '0');
        });
    }
    if (roundTripKm) {
        var savedKm = parseInt(localStorage.getItem('freemoto-roundtrip-km') || '100', 10);
        if (!isNaN(savedKm)) roundTripKm.value = savedKm;
        roundTripKm.addEventListener('change', function(){
            var v = parseInt(roundTripKm.value, 10);
            if (!isNaN(v)) localStorage.setItem('freemoto-roundtrip-km', String(v));
            if (roundTripToggle && roundTripToggle.checked && typeof window.createRoundTrip === 'function') {
                window.createRoundTrip();
            }
        });
    }
    if (roundTripBtn) {
        roundTripBtn.addEventListener('click', function(){
            if (typeof window.createRoundTrip === 'function') {
                window.createRoundTrip();
            }
        });
    }

    if (roundTripNoRepeat) {
        var savedNR = localStorage.getItem('freemoto-roundtrip-norepeat') === '1';
        roundTripNoRepeat.checked = savedNR;
        roundTripNoRepeat.addEventListener('change', function(){
            localStorage.setItem('freemoto-roundtrip-norepeat', roundTripNoRepeat.checked ? '1' : '0');
        });
    }

    // Direction preference persistence and live update
    if (roundTripDir) {
        var savedDir = localStorage.getItem('freemoto-roundtrip-dir') || 'any';
        roundTripDir.value = savedDir;
        roundTripDir.addEventListener('change', function(){
            localStorage.setItem('freemoto-roundtrip-dir', roundTripDir.value);
            if (roundTripToggle && roundTripToggle.checked && typeof window.createRoundTrip === 'function') {
                // Regenerate the round trip to reflect new direction
                window.createRoundTrip();
            }
        });
    }

    // Scenic optimizer toggle
    if (roundTripScenic) {
        var savedScenic = localStorage.getItem('freemoto-roundtrip-scenic') === '1';
        roundTripScenic.checked = savedScenic;
        roundTripScenic.addEventListener('change', function(){
            localStorage.setItem('freemoto-roundtrip-scenic', roundTripScenic.checked ? '1' : '0');
            if (roundTripToggle && roundTripToggle.checked && typeof window.createRoundTrip === 'function') {
                window.createRoundTrip();
            }
        });
    }

    // Isochrone toggle and minutes
    if (roundTripIsochrone) {
        var savedIso = localStorage.getItem('freemoto-roundtrip-isochrone') === '1';
        roundTripIsochrone.checked = savedIso;
        roundTripIsochrone.addEventListener('change', function(){
            localStorage.setItem('freemoto-roundtrip-isochrone', roundTripIsochrone.checked ? '1' : '0');
            if (roundTripToggle && roundTripToggle.checked && typeof window.createRoundTrip === 'function') {
                window.createRoundTrip();
            }
        });
    }
    if (isochroneMinutes) {
        var savedMin = parseInt(localStorage.getItem('freemoto-isochrone-minutes') || '60', 10);
        if (!isNaN(savedMin)) isochroneMinutes.value = savedMin;
        isochroneMinutes.addEventListener('change', function(){
            var v = parseInt(isochroneMinutes.value, 10);
            if (!isNaN(v)) localStorage.setItem('freemoto-isochrone-minutes', String(v));
            if (roundTripToggle && roundTripToggle.checked && typeof window.createRoundTrip === 'function') {
                window.createRoundTrip();
            }
        });
    }

    // Swap start/end like Google Maps
    (function(){
        var swapBtn = document.getElementById('swapBtn');
        if (!swapBtn) return;
        function swapInputs() {
            var s = document.getElementById('sourceInput');
            var d = document.getElementById('destInput');
            if (!s || !d) return;
            // Swap visible values
            var tmpVal = s.value; s.value = d.value; d.value = tmpVal;
            // Swap lat/lon datasets
            var sLat = s.dataset.lat, sLon = s.dataset.lon;
            s.dataset.lat = d.dataset.lat || '';
            s.dataset.lon = d.dataset.lon || '';
            d.dataset.lat = sLat || '';
            d.dataset.lon = sLon || '';
            // If both look valid, trigger plot
            var sourceLat = parseFloat(s.dataset.lat);
            var sourceLon = parseFloat(s.dataset.lon);
            var destLat = parseFloat(d.dataset.lat);
            var destLon = parseFloat(d.dataset.lon);
            if (!isNaN(sourceLat) && !isNaN(sourceLon) && !isNaN(destLat) && !isNaN(destLon)) {
                var plot = document.getElementById('plotRouteBtn');
                if (plot) plot.click();
            }
        }
        swapBtn.addEventListener('click', swapInputs);
    })();

    // Recenter FAB behavior
    (function(){
        var recenter = document.getElementById('recenterBtn');
        if (!recenter) return;
        recenter.addEventListener('click', function(){
            if (navigator.geolocation) {
                navigator.geolocation.getCurrentPosition(function(position){
                    var lat = position.coords.latitude;
                    var lon = position.coords.longitude;
                    map.setView([lat, lon], Math.max(map.getZoom(), 14));
                });
            }
        });
    })();

    // Mobile panel toggle (portrait)
    try {
        var panel = document.querySelector('.nav-panel');
        var toggleBtn = document.getElementById('panelToggle');
        function isSmallPortrait() {
            var mqW = window.matchMedia('(max-width: 576px)');
            var mqP = window.matchMedia('(orientation: portrait)');
            return (mqW.matches && mqP.matches);
        }
        // Initialize collapsed state on load for small portrait
        if (panel && isSmallPortrait()) {
            panel.classList.add('collapsed');
            if (toggleBtn) toggleBtn.setAttribute('aria-expanded', 'false');
        }
        // Auto-collapse panel when user hits Plot on small portrait
        var plotBtn = document.getElementById('plotRouteBtn');
        if (plotBtn) {
            plotBtn.addEventListener('click', function(){
                if (panel && isSmallPortrait()) {
                    panel.classList.add('collapsed');
                    if (toggleBtn) toggleBtn.setAttribute('aria-expanded', 'false');
                }
            });
        }
        if (toggleBtn && panel) {
            toggleBtn.addEventListener('click', function() {
                panel.classList.toggle('collapsed');
                var expanded = !panel.classList.contains('collapsed');
                toggleBtn.setAttribute('aria-expanded', expanded ? 'true' : 'false');
            });
        }
        // When orientation/viewport changes, ensure panel doesn't exceed screen
        window.addEventListener('resize', function(){
            if (!panel) return;
            if (isSmallPortrait()) {
                // Keep collapsed if it would cover map too much
                if (!panel.classList.contains('collapsed')) panel.classList.add('collapsed');
                if (toggleBtn) toggleBtn.setAttribute('aria-expanded', 'false');
            }
        });
    } catch (_) {}
});