{% extends "base.html" %}

{% block title %}Review Your Project - PairCoder Setup{% endblock %}

{% block content %}
<section class="review-page">
    <div class="page-header">
        <h2>Review Your Project</h2>
        <p class="page-description">Review the files and configuration before creating your project.</p>
    </div>

    <div class="review-sections">
        <div class="review-section">
            <h3>Files to be created</h3>
            <div class="file-tree" id="file-tree">
                <div class="file-tree-loading">Loading file preview...</div>
            </div>
        </div>

        <div class="review-section">
            <h3>Config Preview</h3>
            <pre class="config-preview" id="config-preview"><code>Loading config preview...</code></pre>
        </div>

        {% if update_mode %}
        <div class="review-section" id="architecture-delta-panel">
            <h3>Architecture: Current vs. Proposed</h3>
            <ul id="architecture-delta-list" class="architecture-delta-list"></ul>
        </div>
        {% endif %}

        {% if integrations %}
        <div class="review-section integration-section">
            <h3>
                <span class="tier-badge tier-{{ tier }}">{{ tier_display }}</span>
                Integrations Available
            </h3>
            <p class="integration-hint">Your tier includes integrations. Add them now or configure later.</p>

            <div class="integration-list">
                {% for integration in integrations %}
                <label class="integration-option">
                    <input type="checkbox"
                           name="integration"
                           value="{{ integration.id }}"
                           {% if integration_status[integration.id] %}checked disabled{% endif %}
                           class="integration-checkbox">
                    <span class="integration-content">
                        {% if integration_status[integration.id] %}
                        <span class="integration-status configured">&#10003;</span>
                        {% else %}
                        <span class="integration-status pending">&#9675;</span>
                        {% endif %}
                        <span class="integration-info">
                            <span class="integration-name">{{ integration.name }}</span>
                            <span class="integration-desc">{{ integration.description }}</span>
                        </span>
                    </span>
                </label>
                {% endfor %}
            </div>

            <button type="button"
                    class="btn btn-secondary btn-sm"
                    id="configure-integrations-btn"
                    onclick="configureSelectedIntegrations()">
                Configure Selected
            </button>
        </div>
        {% endif %}

        <div id="backup-notice" class="backup-notice hidden">
            <span class="backup-icon">&#9888;</span>
            <p>Existing <code>.paircoder/</code> directory will be backed up before overwriting.</p>
        </div>

        <div id="progress-section" class="progress-section hidden">
            <div class="progress-bar">
                <div class="progress-fill" id="progress-fill"></div>
            </div>
            <p class="progress-text" id="progress-text">Creating project...</p>
        </div>

        <div id="error-message" class="status-message error hidden"></div>
    </div>

    <div class="navigation-buttons">
        <button type="button" class="btn btn-secondary" onclick="navigateBack()">Back</button>
        <button type="button" class="btn btn-primary" id="create-btn" onclick="createProject()">
            Create Project
        </button>
    </div>
</section>

<script>
// Load previews on page load
document.addEventListener('DOMContentLoaded', function() {
    loadFilePreview();
    loadConfigPreview();
    updateConfigureButton();
    loadArchitectureDelta();
});

// PF.8c -- current-vs-proposed delta on the review screen (mirrors architecture.html)
function loadArchitectureDelta() {
    var list = document.getElementById('architecture-delta-list');
    if (!list) return;

    fetch('/api/architecture/delta')
        .then(function(response) { return response.json(); })
        .then(function(data) {
            if (!data.success) return;
            var changedKeys = Object.keys(data.delta).filter(function(key) {
                return data.delta[key].changed;
            });
            list.innerHTML = '';
            changedKeys.forEach(function(key) {
                var entry = data.delta[key];
                var li = document.createElement('li');
                li.textContent = key + ': ' + JSON.stringify(entry.current) + ' -> ' + JSON.stringify(entry.proposed);
                list.appendChild(li);
            });
        })
        .catch(function() { /* delta is advisory-only; ignore failures */ });
}

function loadFilePreview() {
    fetch('/api/preview/files')
        .then(r => r.json())
        .then(data => {
            if (data.success && data.files) {
                renderFileTree(data.files);
            } else if (data.error === 'No project data') {
                showNoProjectDataError();
            } else {
                document.getElementById('file-tree').innerHTML =
                    '<p class="error-text">Could not load file preview.</p>';
            }
        })
        .catch(() => {
            document.getElementById('file-tree').innerHTML =
                '<p class="error-text">Could not load file preview.</p>';
        });
}

function showNoProjectDataError() {
    document.getElementById('file-tree').innerHTML =
        '<p class="error-text">No project configured yet.</p>';
    document.getElementById('config-preview').querySelector('code').textContent =
        'No configuration available.';
    document.getElementById('error-message').innerHTML =
        '<strong>No project data found.</strong><br>' +
        'Please complete the setup first:<br><br>' +
        '<a href="/wizard/chat" class="btn btn-secondary">Go to Guided Setup</a> ' +
        '<a href="/wizard/project" class="btn btn-secondary">Go to Quick Setup</a>';
    document.getElementById('error-message').classList.remove('hidden');
    document.getElementById('create-btn').disabled = true;
}

function renderFileTree(files) {
    var container = document.getElementById('file-tree');
    var html = '';
    files.forEach(function(f) {
        var isDir = f.endsWith('/');
        var depth = (f.match(/\//g) || []).length - (isDir ? 1 : 0);
        var indent = depth > 0 ? 'style="padding-left: ' + (depth * 1.25) + 'rem"' : '';
        var icon = isDir ? '&#128193;' : '&#128196;';
        var name = f.split('/').filter(Boolean).pop();
        html += '<div class="file-tree-item" ' + indent + '>' +
            '<span class="file-icon">' + icon + '</span>' +
            '<span class="file-name">' + (name || f) + '</span></div>';
    });
    container.innerHTML = html;
}

function loadConfigPreview() {
    fetch('/api/preview/config')
        .then(r => r.json())
        .then(data => {
            if (data.success && data.config_yaml) {
                document.getElementById('config-preview').querySelector('code').textContent =
                    data.config_yaml;
            }
        })
        .catch(() => {
            document.getElementById('config-preview').querySelector('code').textContent =
                'Could not load config preview.';
        });
}

function createProject() {
    var btn = document.getElementById('create-btn');
    var progress = document.getElementById('progress-section');
    var errorEl = document.getElementById('error-message');
    var fill = document.getElementById('progress-fill');
    var text = document.getElementById('progress-text');

    btn.disabled = true;
    btn.textContent = 'Creating...';
    progress.classList.remove('hidden');
    errorEl.classList.add('hidden');

    // Animate progress
    fill.style.width = '30%';
    text.textContent = 'Creating project files...';

    fetch('/api/create', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ confirm: true })
    })
        .then(r => r.json())
        .then(data => {
            if (data.success) {
                fill.style.width = '100%';
                text.textContent = 'Project created!';
                setTimeout(function() {
                    window.location.href = data.next_url || '/wizard/success';
                }, 600);
            } else {
                fill.style.width = '0%';
                progress.classList.add('hidden');
                errorEl.textContent = 'Error: ' + (data.error || 'Failed to create project');
                errorEl.classList.remove('hidden');
                btn.disabled = false;
                btn.textContent = 'Create Project';
            }
        })
        .catch(function(err) {
            fill.style.width = '0%';
            progress.classList.add('hidden');
            errorEl.textContent = 'Failed to create project. Please try again.';
            errorEl.classList.remove('hidden');
            btn.disabled = false;
            btn.textContent = 'Create Project';
        });
}

function navigateBack() {
    // Check session track to determine back navigation
    fetch('/api/state')
        .then(r => r.json())
        .then(data => {
            if (data.track === 'guided') {
                window.location.href = '/wizard/chat';
            } else {
                window.location.href = '/wizard/mcp';
            }
        })
        .catch(function() {
            window.location.href = '/wizard/mcp';
        });
}

// Integration configuration functions
function updateConfigureButton() {
    var btn = document.getElementById('configure-integrations-btn');
    if (!btn) return;

    var checkboxes = document.querySelectorAll('.integration-checkbox:not(:disabled)');
    var checked = document.querySelectorAll('.integration-checkbox:checked:not(:disabled)');

    btn.disabled = checked.length === 0;
    btn.textContent = checked.length > 0
        ? 'Configure Selected (' + checked.length + ')'
        : 'Configure Selected';
}

function configureSelectedIntegrations() {
    var checkboxes = document.querySelectorAll('.integration-checkbox:checked:not(:disabled)');
    var selected = [];
    checkboxes.forEach(function(cb) {
        selected.push(cb.value);
    });

    if (selected.length === 0) {
        return;
    }

    fetch('/api/review/configure-integrations', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ integrations: selected })
    })
        .then(r => r.json())
        .then(data => {
            if (data.success && data.next_url) {
                window.location.href = data.next_url;
            } else {
                var errorEl = document.getElementById('error-message');
                errorEl.textContent = 'Error: ' + (data.error || 'Failed to start configuration');
                errorEl.classList.remove('hidden');
            }
        })
        .catch(function() {
            var errorEl = document.getElementById('error-message');
            errorEl.textContent = 'Failed to start integration configuration.';
            errorEl.classList.remove('hidden');
        });
}

// Update button state when checkboxes change
document.addEventListener('change', function(e) {
    if (e.target.classList.contains('integration-checkbox')) {
        updateConfigureButton();
    }
});
</script>
{% endblock %}