{% extends 'base.html' %}
{% load static %}

{% block title %}Results — Constellar{% endblock %}

{% block extra_css %}
<style>
    .result-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 1.375rem;
        transition: border-color .2s;
    }
    .result-card:hover { border-color: rgba(99,102,241,.3); }

    .confidence-badge {
        font-size: .6875rem; font-weight: 700;
        padding: .25rem .625rem;
        border-radius: 5px;
        background: rgba(34,197,94,.12);
        border: 1px solid rgba(34,197,94,.25);
        color: #86efac;
    }

    .icon-action {
        width: 30px; height: 30px;
        border-radius: 7px;
        border: 1px solid var(--border);
        background: rgba(255,255,255,.04);
        color: var(--muted);
        cursor: pointer;
        display: flex; align-items: center; justify-content: center;
        transition: all .15s;
    }
    .icon-action:hover { color: #fff; border-color: rgba(255,255,255,.18); }

    .learn-btn {
        font-family: 'Inter', sans-serif;
        font-size: .78125rem; font-weight: 600;
        color: #a5b4fc;
        padding: .5rem 1rem;
        border-radius: 7px;
        border: 1px solid rgba(99,102,241,.3);
        background: rgba(99,102,241,.08);
        cursor: pointer;
        transition: all .15s;
        display: inline-flex; align-items: center; gap: .375rem;
    }
    .learn-btn:hover { background: rgba(99,102,241,.16); border-color: rgba(99,102,241,.5); }

    .coords-box {
        margin-top: 1rem;
        padding: .625rem .875rem;
        background: rgba(255,255,255,.025);
        border: 1px solid var(--border);
        border-radius: 7px;
        font-size: .6875rem;
        color: var(--muted);
        display: flex; gap: 1.25rem;
    }

    .spin {
        width: 14px; height: 14px; border-radius: 50%;
        border: 2px solid rgba(255,255,255,.15);
        border-top-color: var(--accent);
        animation: spin .7s linear infinite;
    }
    @keyframes spin { to { transform: rotate(360deg); } }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(8px); }
        to { opacity: 1; transform: translateY(0); }
    }
    .animate-fade-in { animation: fadeIn .3s ease-out; }

    /* ── before/after slider ── */
    .compare {
        position: relative;
        overflow: hidden;
        border-radius: 9px;
        user-select: none;
    }
    .compare > img { width: 100%; display: block; }
    .compare-top {
        position: absolute;
        top: 0; left: 0;
        height: 100%;
        width: var(--pos, 50%);
        overflow: hidden;
    }
    .compare-top img {
        position: absolute;
        top: 0; left: 0;
        height: 100%;
        width: auto;
        max-width: none;
    }
    .compare-line {
        position: absolute;
        top: 0; bottom: 0;
        left: var(--pos, 50%);
        width: 2px;
        background: rgba(255,255,255,.85);
        box-shadow: 0 0 10px rgba(0,0,0,.5);
        pointer-events: none;
    }
    .compare-line::after {
        content: '⇄';
        position: absolute;
        top: 50%; left: 50%;
        transform: translate(-50%, -50%);
        width: 32px; height: 32px;
        border-radius: 50%;
        background: rgba(6,13,31,.85);
        border: 1px solid rgba(255,255,255,.5);
        color: #fff;
        font-size: .875rem;
        display: flex; align-items: center; justify-content: center;
    }
    .compare-label {
        position: absolute;
        top: .75rem;
        font-size: .625rem; font-weight: 700;
        letter-spacing: .08em; text-transform: uppercase;
        padding: .25rem .5rem;
        border-radius: 5px;
        background: rgba(6,13,31,.75);
        color: rgba(255,255,255,.85);
        pointer-events: none;
        backdrop-filter: blur(4px);
    }
    .compare input[type="range"] {
        position: absolute;
        inset: 0;
        width: 100%; height: 100%;
        opacity: 0;
        cursor: ew-resize;
        margin: 0;
    }
</style>
{% endblock %}

{% block content %}

<!-- ════ HEADER ════ -->
<section class="section" style="padding-top:3.5rem; padding-bottom:2rem; text-align:center;">
    <div class="tag" style="margin-bottom:1.25rem;">Analysis Complete</div>
    <h1 style="font-family:'Orbitron',monospace; font-size:clamp(1.5rem,3.5vw,2.25rem); font-weight:900; margin:0 0 .875rem; letter-spacing:-.01em;">
        Detection Results
    </h1>
    <p style="font-size:.9375rem; color:var(--muted); margin:0;">
        {% if analysis_type == 'constellation' %}
            Your night sky image has been analyzed for constellation patterns.
        {% else %}
            Objects detected in your image.
        {% endif %}
    </p>
</section>

<!-- ════ PROCESSED IMAGE ════ -->
<section style="padding:0 1.5rem;">
    <div style="max-width:900px; margin:0 auto;">
        <div class="glass-card" style="padding:1.25rem;">
            {% if original_image %}
            <!-- before/after comparison slider -->
            <div class="compare" id="compareBox" style="--pos:50%;">
                <img src="data:image/jpeg;base64,{{ processed_image }}" alt="Detection result" draggable="false">
                <div class="compare-top">
                    <img src="data:image/jpeg;base64,{{ original_image }}" alt="Original image" draggable="false">
                </div>
                <div class="compare-line"></div>
                <span class="compare-label" style="left:.75rem;">Original</span>
                <span class="compare-label" style="right:.75rem;">Detected</span>
                <input type="range" min="0" max="100" value="50" id="compareRange" aria-label="Compare original and detected image">
            </div>
            <p style="text-align:center; font-size:.71875rem; color:var(--muted); margin:.875rem 0 0;">
                Drag the slider to compare your original photo with the detection result
            </p>
            {% else %}
            <img src="data:image/jpeg;base64,{{ processed_image }}"
                 alt="Processed constellation image"
                 style="width:100%; border-radius:9px; display:block;">
            {% endif %}
        </div>
    </div>
</section>

<!-- ════ DETECTIONS ════ -->
<section class="section" style="max-width:900px; padding-top:2.5rem; padding-bottom:2rem;">
    {% if detected_constellations %}
        <p class="section-label">Detected</p>
        <h2 style="font-family:'Orbitron',monospace; font-size:clamp(1.2rem,2.5vw,1.5rem); font-weight:700; margin:0 0 1.5rem;">
            {{ detected_constellations|length }} Constellation{{ detected_constellations|length|pluralize }} Found
        </h2>

        <div style="display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:1rem;">
            {% for constellation in detected_constellations %}
                <div class="result-card">
                    <div style="display:flex; align-items:center; justify-content:space-between; margin-bottom:1rem;">
                        <h3 style="font-size:1rem; font-weight:600; margin:0; color:#fff;">{{ constellation.name }}</h3>
                        <div style="display:flex; align-items:center; gap:.5rem;">
                            <span class="confidence-badge">{{ constellation.confidence|floatformat:2 }}</span>
                            <button onclick="speakConstellation('{{ constellation.name }}')" class="icon-action" title="Listen">
                                <svg width="13" height="13" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24">
                                    <polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"/>
                                    <path d="M19.07 4.93a10 10 0 0 1 0 14.14M15.54 8.46a5 5 0 0 1 0 7.07"/>
                                </svg>
                            </button>
                        </div>
                    </div>

                    <div id="info-{{ forloop.counter }}" class="constellation-info">
                        <button onclick="loadConstellationInfo('{{ constellation.name }}', {{ forloop.counter }})" class="learn-btn">
                            <svg width="12" height="12" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24">
                                <circle cx="12" cy="12" r="10"/><path stroke-linecap="round" d="M12 16v-4M12 8h.01"/>
                            </svg>
                            Learn more
                        </button>
                    </div>

                    <div class="coords-box">
                        <span>X {{ constellation.coordinates.0|floatformat:0 }}–{{ constellation.coordinates.2|floatformat:0 }}</span>
                        <span>Y {{ constellation.coordinates.1|floatformat:0 }}–{{ constellation.coordinates.3|floatformat:0 }}</span>
                    </div>
                </div>
            {% endfor %}
        </div>
    {% else %}
        <div style="text-align:center; padding:3rem 1rem;">
            <div style="width:56px; height:56px; border-radius:14px; background:rgba(255,255,255,.04); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; margin:0 auto 1.25rem;">
                <svg width="24" height="24" fill="none" stroke="rgba(221,228,240,.4)" stroke-width="1.6" viewBox="0 0 24 24">
                    <circle cx="11" cy="11" r="8"/><path stroke-linecap="round" d="m21 21-4.35-4.35M8 11h6"/>
                </svg>
            </div>
            <h3 style="font-size:1rem; font-weight:600; margin:0 0 .5rem;">No constellations detected</h3>
            <p style="font-size:.8125rem; color:var(--muted); margin:0;">Try a clearer night sky image with visible star patterns.</p>
        </div>
    {% endif %}
</section>

<!-- ════ NEXT ACTIONS ════ -->
<section class="section" style="padding-top:1rem; text-align:center; border-top:1px solid var(--border);">
    <p style="font-size:.8125rem; color:var(--muted); margin:2rem 0 1rem;">What's next?</p>
    <div style="display:flex; gap:.75rem; justify-content:center; flex-wrap:wrap;">
        <a href="{% url 'upload' %}" class="btn-accent" style="padding:.65rem 1.375rem;">Analyze Another Image</a>
        <a href="{% url 'detect' %}" class="btn-ghost" style="padding:.65rem 1.375rem;">Live Detection</a>
        <a href="{% url 'database' %}" class="btn-ghost" style="padding:.65rem 1.375rem;">Browse Database</a>
    </div>
</section>

{% endblock %}

{% block extra_js %}
<script>
function speakConstellation(constellationName) {
    if ('speechSynthesis' in window) {
        speechSynthesis.cancel();

        const infoElement = document.querySelector(`[data-constellation="${constellationName}"]`);
        let textToSpeak = `Constellation: ${constellationName}`;

        if (infoElement) {
            const description = infoElement.querySelector('.constellation-description');
            if (description) textToSpeak += `. ${description.textContent}`;
        }

        const utterance = new SpeechSynthesisUtterance(textToSpeak);
        utterance.rate = 0.8;
        utterance.pitch = 1;
        utterance.volume = 0.8;
        speechSynthesis.speak(utterance);
    } else {
        alert('Text-to-speech is not supported in your browser');
    }
}

async function loadConstellationInfo(constellationName, index) {
    const infoDiv = document.getElementById(`info-${index}`);

    infoDiv.innerHTML = `
        <div style="display:flex; align-items:center; gap:.5rem; padding:.375rem 0;">
            <div class="spin"></div>
            <span style="font-size:.78125rem; color:var(--muted);">Loading details…</span>
        </div>
    `;

    try {
        const response = await fetch('/get-constellation-info/', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'X-CSRFToken': getCookie('csrftoken'),
            },
            body: JSON.stringify({ constellation_name: constellationName })
        });

        if (response.ok) {
            const data = await response.json();
            displayConstellationInfo(infoDiv, data.name, data.info);
        } else {
            throw new Error('Failed to fetch constellation info');
        }
    } catch (error) {
        displayConstellationInfo(infoDiv, constellationName, getBasicConstellationInfo(constellationName));
    }
}

function displayConstellationInfo(container, name, info) {
    container.innerHTML = `
        <div data-constellation="${name}" class="animate-fade-in">
            <div class="constellation-description" style="font-size:.78125rem; color:var(--muted); line-height:1.7; margin-bottom:.75rem;">
                ${info}
            </div>
            <button onclick="speakConstellation('${name}')" class="learn-btn">
                <svg width="11" height="11" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24">
                    <polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"/>
                    <path d="M15.54 8.46a5 5 0 0 1 0 7.07"/>
                </svg>
                Listen
            </button>
        </div>
    `;
}

function getBasicConstellationInfo(name) {
    const basicInfo = {
        'Orion': 'Orion is one of the most recognizable constellations, known as "The Hunter." It contains bright stars like Betelgeuse and Rigel, and the famous Orion Nebula.',
        'Ursa Major': 'Ursa Major, the Great Bear, contains the famous Big Dipper asterism. It\'s visible year-round in most northern hemisphere locations.',
        'Cassiopeia': 'Cassiopeia is known for its distinctive W-shape formed by five bright stars. In Greek mythology, she was a vain queen.',
        'Leo': 'Leo the Lion is a zodiac constellation best seen in spring. Its brightest star is Regulus, marking the lion\'s heart.',
        'Cygnus': 'Cygnus, the Swan, flies along the Milky Way. Its brightest star Deneb forms part of the Summer Triangle.',
    };
    return basicInfo[name] || `${name} is a fascinating constellation with a rich history in astronomy and mythology. This celestial pattern has guided navigators and inspired storytellers for thousands of years.`;
}

function getCookie(name) {
    let cookieValue = null;
    if (document.cookie && document.cookie !== '') {
        const cookies = document.cookie.split(';');
        for (let i = 0; i < cookies.length; i++) {
            const cookie = cookies[i].trim();
            if (cookie.substring(0, name.length + 1) === (name + '=')) {
                cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                break;
            }
        }
    }
    return cookieValue;
}

const compareBox = document.getElementById('compareBox');
const compareRange = document.getElementById('compareRange');
if (compareBox && compareRange) {
    compareRange.addEventListener('input', () => {
        compareBox.style.setProperty('--pos', compareRange.value + '%');
    });
}
</script>
{% endblock %}