@props([
    'name'        => '',
    'id'          => null,
    'value'       => null,
    'label'       => null,
    'placeholder' => 'Select timezone',
    'required'    => false,
    'class'       => '',
    'style'       => '',
])

@php
    use App\Data\Countries;
    $options   = Countries::forTimezone();
    $uid       = 'csd_' . ($id ?? $name) . '_' . substr(md5(uniqid()), 0, 8);
    $inputId   = $id ?? $name;

    $selFlag  = '🌐';
    $selLabel = $placeholder;
    $selSub   = '';
    if ($value) {
        foreach ($options as $opt) {
            if ($opt['value'] === $value) {
                $selFlag  = $opt['flag'];
                $selLabel = $opt['label'];
                $selSub   = $opt['utc'];
                break;
            }
        }
    }
    $isPlaceholder = !$value;
@endphp

@once('csd-styles')
<style>
.csd-wrap { position: relative; }
.csd-lbl  { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; color: var(--text-primary, #f1f1f1); }
.csd-lbl .req { color: var(--brand-red, #e61e1e); margin-left: 2px; }
.csd-btn {
    display: flex; align-items: center; gap: 8px; width: 100%;
    background: var(--bg-dark, #0f0f0f); border: 1px solid var(--border-color, #303030);
    border-radius: 8px; padding: 10px 14px; color: var(--text-primary, #f1f1f1);
    font-size: 14px; font-family: inherit; line-height: 1.4; cursor: pointer;
    text-align: left; transition: border-color .2s; outline: none; min-height: 46px; box-sizing: border-box;
}
.csd-btn:hover, .csd-btn:focus-visible { border-color: var(--brand-red, #e61e1e); }
.csd-btn[aria-expanded="true"] { border-color: var(--brand-red, #e61e1e); }
.csd-ico { font-size: 18px; line-height: 1; flex-shrink: 0; user-select: none; }
.csd-val { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.csd-val.ph { color: var(--text-secondary, #aaa); }
.csd-sub { font-size: 12px; color: var(--text-secondary, #aaa); white-space: nowrap; flex-shrink: 0; }
.csd-arr { flex-shrink: 0; font-size: 11px; color: var(--text-secondary, #aaa); margin-left: 4px; transition: transform .2s; }
.csd-btn[aria-expanded="true"] .csd-arr { transform: rotate(180deg); }
.csd-panel {
    position: fixed; z-index: 1060; min-width: 220px;
    background: var(--bg-secondary, #1e1e1e); border: 1px solid var(--border-color, #303030);
    border-radius: 10px; box-shadow: 0 12px 32px rgba(0,0,0,.55); overflow: hidden;
}
.csd-srch { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border-color, #303030); }
.csd-srch i { font-size: 13px; color: var(--text-secondary, #aaa); flex-shrink: 0; }
.csd-sinput { flex: 1; background: none; border: none; outline: none; color: var(--text-primary, #f1f1f1); font-size: 13px; font-family: inherit; }
.csd-sinput::placeholder { color: var(--text-secondary, #aaa); }
.csd-list { list-style: none; margin: 0; padding: 4px 0; max-height: 240px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--border-color, #303030) transparent; }
.csd-list::-webkit-scrollbar { width: 4px; }
.csd-list::-webkit-scrollbar-thumb { background: var(--border-color, #303030); border-radius: 2px; }
.csd-opt { display: flex; align-items: center; gap: 10px; padding: 8px 12px; cursor: pointer; font-size: 13px; color: var(--text-primary, #f1f1f1); transition: background .1s; outline: none; }
.csd-opt:hover, .csd-opt:focus { background: rgba(255,255,255,.07); }
.csd-opt[aria-selected="true"] { background: rgba(255,255,255,.05); }
.csd-opt-ico  { font-size: 17px; line-height: 1; flex-shrink: 0; user-select: none; }
.csd-opt-main { font-weight: 500; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.csd-opt-sub  { font-size: 12px; color: var(--text-secondary, #aaa); white-space: nowrap; flex-shrink: 0; max-width: 45%; overflow: hidden; text-overflow: ellipsis; }
.csd-empty { padding: 12px; font-size: 13px; color: var(--text-secondary, #aaa); text-align: center; }
</style>
@endonce

@once('csd-script')
<script>
(function () {
    if (window.CSD) return;
    window.CSD = class {
        constructor(id) {
            this.root   = document.getElementById(id);
            this.btn    = this.root.querySelector('.csd-btn');
            this.panel  = this.root.querySelector('.csd-panel');
            this.sinput = this.root.querySelector('.csd-sinput');
            this.list   = this.root.querySelector('.csd-list');
            this.hidden = this.root.querySelector('input[type=hidden]');
            this.icoEl  = this.btn.querySelector('.csd-ico');
            this.valEl  = this.btn.querySelector('.csd-val');
            this.subEl  = this.btn.querySelector('.csd-sub');
            this.emptyEl= this.root.querySelector('.csd-empty');
            this._bind();
            if (this.root.dataset.geoMap && !this.hidden.value) {
                this._autoGeo();
            }
        }
        _bind() {
            this.btn.addEventListener('click', e => { e.stopPropagation(); this.toggle(); });
            this.sinput.addEventListener('input', () => this._filter());
            this.list.addEventListener('click', e => { const o = e.target.closest('.csd-opt'); if (o) this._pick(o); });
            document.addEventListener('click', e => { if (!this.root.contains(e.target)) this.close(); }, true);
            this.btn.addEventListener('keydown', e => { if (e.key==='Enter'||e.key===' ') { e.preventDefault(); this.toggle(); } });
            this.sinput.addEventListener('keydown', e => {
                if (e.key==='Escape') { this.close(); this.btn.focus(); }
                if (e.key==='ArrowDown') { e.preventDefault(); this._move(0); }
                if (e.key==='Enter') { e.preventDefault(); }
            });
            this.list.addEventListener('keydown', e => {
                const all = [...this.list.querySelectorAll('.csd-opt:not([hidden])')];
                const i   = all.indexOf(document.activeElement.closest('.csd-opt'));
                if (e.key==='ArrowDown') { e.preventDefault(); this._move(i+1); }
                if (e.key==='ArrowUp')   { e.preventDefault(); i>0 ? this._move(i-1) : this.sinput.focus(); }
                if (e.key==='Enter')     { e.preventDefault(); if (all[i]) this._pick(all[i]); }
                if (e.key==='Escape')    { this.close(); this.btn.focus(); }
            });
        }
        toggle() { this.panel.hidden ? this.open() : this.close(); }
        open() {
            document.querySelectorAll('.csd-panel:not([hidden])').forEach(p => { p.hidden = true; });
            document.querySelectorAll('.csd-btn[aria-expanded=true]').forEach(b => b.setAttribute('aria-expanded','false'));
            this.panel.hidden = false;
            this.btn.setAttribute('aria-expanded','true');
            this.sinput.value = '';
            this._filter();
            requestAnimationFrame(() => this.sinput.focus());
            const r = this.btn.getBoundingClientRect();
            const goUp = window.innerHeight - r.bottom < 280 && r.top > 280;
            this.panel.style.left  = r.left + 'px';
            this.panel.style.width = Math.max(r.width, 220) + 'px';
            if (goUp) {
                this.panel.style.top    = '';
                this.panel.style.bottom = (window.innerHeight - r.top + 4) + 'px';
            } else {
                this.panel.style.top    = (r.bottom + 4) + 'px';
                this.panel.style.bottom = '';
            }
        }
        close() { this.panel.hidden=true; this.btn.setAttribute('aria-expanded','false'); }
        _filter() {
            const q = this.sinput.value.toLowerCase(); let n=0;
            this.list.querySelectorAll('.csd-opt').forEach(o => {
                const show = o.dataset.s.includes(q);
                o.style.display = show ? '' : 'none';
                if (show) n++;
            });
            if (this.emptyEl) this.emptyEl.style.display = n > 0 ? 'none' : '';
        }
        _autoGeo() {
            try {
                const tz  = Intl.DateTimeFormat().resolvedOptions().timeZone;
                const map = JSON.parse(this.root.dataset.geoMap);
                const iso2 = map[tz];
                if (iso2) {
                    const opt = this.list.querySelector('[data-v="' + iso2 + '"]');
                    if (opt) this._pick(opt);
                }
            } catch (_) {}
        }
        _move(i) { const all=[...this.list.querySelectorAll('.csd-opt:not([hidden])')]; if(all[i]){all[i].tabIndex=0;all[i].focus();} }
        _pick(opt) {
            this.hidden.value = opt.dataset.v;
            this.icoEl.textContent = opt.querySelector('.csd-opt-ico').textContent;
            this.valEl.textContent = opt.querySelector('.csd-opt-main').textContent;
            this.valEl.classList.remove('ph');
            if (this.subEl) { const s=opt.querySelector('.csd-opt-sub'); this.subEl.textContent=s?s.textContent:''; }
            this.list.querySelectorAll('.csd-opt').forEach(o => o.setAttribute('aria-selected', o===opt?'true':'false'));
            this.close(); this.btn.focus();
            this.hidden.dispatchEvent(new Event('change',{bubbles:true}));
        }
    };
}());
</script>
@endonce

<div class="csd-wrap {{ $class }}" id="{{ $uid }}" @if($style) style="{{ $style }}" @endif>

    @if($label)
    <label class="csd-lbl" for="{{ $inputId }}">
        {{ $label }}@if($required)<span class="req">*</span>@endif
    </label>
    @endif

    <button type="button"
            class="csd-btn"
            aria-haspopup="listbox"
            aria-expanded="false"
            aria-label="{{ $label ?? 'Select timezone' }}">
        <span class="csd-ico">{{ $selFlag }}</span>
        <span class="csd-val{{ $isPlaceholder ? ' ph' : '' }}">{{ $selLabel }}</span>
        @if(!$isPlaceholder && $selSub)
        <span class="csd-sub">{{ $selSub }}</span>
        @endif
        <i class="bi bi-chevron-down csd-arr"></i>
    </button>

    <div class="csd-panel" hidden role="listbox">
        <div class="csd-srch">
            <i class="bi bi-search"></i>
            <input class="csd-sinput" type="text" placeholder="Search timezone or country…" autocomplete="off" spellcheck="false">
        </div>
        <ul class="csd-list">
            @foreach($options as $opt)
            <li class="csd-opt"
                role="option"
                tabindex="-1"
                data-v="{{ $opt['value'] }}"
                data-s="{{ $opt['search'] }}"
                aria-selected="{{ $value === $opt['value'] ? 'true' : 'false' }}">
                <span class="csd-opt-ico">{{ $opt['flag'] }}</span>
                <span class="csd-opt-main">{{ $opt['label'] }}</span>
                <span class="csd-opt-sub">{{ $opt['utc'] }}</span>
            </li>
            @endforeach
        </ul>
        <p class="csd-empty" hidden>No results</p>
    </div>

    <input type="hidden"
           name="{{ $name }}"
           id="{{ $inputId }}"
           value="{{ $value }}"
           @if($required) required @endif>
</div>

<script>
(function () {
    function boot() { new CSD('{{ $uid }}'); }
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', boot);
    } else {
        boot();
    }
}());
</script>