{% extends "base.html" %}

{% block title %}{{ _('Edit Project') }} - {{ app_name }}{% endblock %}

{% block content %}
<div class="flex flex-col md:flex-row justify-between items-start md:items-center mb-6">
    <div>
        <h1 class="text-2xl font-bold">{{ _('Edit Project') }}</h1>
        <p class="text-text-muted-light dark:text-text-muted-dark">{{ project.name }}</p>
    </div>
    <a href="{{ url_for('projects.view_project', project_id=project.id) }}" class="bg-gray-200 dark:bg-gray-700 px-4 py-2 rounded-lg mt-4 md:mt-0">{{ _('Back to Project') }}</a>
    </div>

<div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
    <div class="lg:col-span-2">
        <div class="bg-card-light dark:bg-card-dark p-6 rounded-xl border border-border-light dark:border-border-dark shadow-sm">
            <form method="POST" action="{{ url_for('projects.edit_project', project_id=project.id) }}" novalidate data-validate-form>
                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">

                <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
                    <div class="md:col-span-2">
                        <label for="name" class="form-label">{{ _('Project Name') }} *</label>
                        <input type="text" id="name" name="name" required value="{{ request.form.get('name', project.name) }}" class="form-input">
                    </div>
                    <div>
                        <label for="code" class="form-label">{{ _('Project Code') }}</label>
                        <input type="text" id="code" name="code" value="{{ request.form.get('code', project.code or '') }}" placeholder="{{ _('Short code, e.g., ABC') }}" class="form-input" maxlength="20">
                    </div>
                    <div>
                        <label for="client_id" class="form-label">{{ _('Client') }} *</label>
                        {% if only_one_client and single_client %}
                        <input type="hidden" name="client_id" id="client_id" value="{{ single_client.id }}" data-default-rate="{{ single_client.default_hourly_rate or '' }}">
                        <input type="text" class="form-input bg-gray-100 dark:bg-gray-700 cursor-not-allowed opacity-75" value="{{ single_client.name }}" disabled readonly aria-label="{{ _('Client (auto-selected)') }}">
                        {% else %}
                        <select id="client_id" name="client_id" required class="form-input">
                            <option value="">{{ _('Select a client...') }}</option>
                            {% for client in clients %}
                            <option value="{{ client.id }}" {% if request.form.get('client_id', project.client_id) == client.id %}selected{% endif %} data-default-rate="{{ client.default_hourly_rate or '' }}">{{ client.name }}</option>
                            {% endfor %}
                        </select>
                        {% endif %}
                        <p class="text-xs mt-1"><a href="{{ url_for('clients.create_client') }}" class="text-primary hover:underline">{{ _('Create new client') }}</a></p>
                    </div>
                </div>

                <div>
                    <div class="flex items-center justify-between">
                        <label for="description" class="form-label">{{ _('Description') }}</label>
                        <small class="text-text-muted-light dark:text-text-muted-dark">{{ _('Supports Markdown') }}</small>
                    </div>
                    <div class="markdown-editor-wrapper">
                        <textarea class="form-input hidden" id="description" name="description" rows="10">{{ request.form.get('description', project.description or '') }}</textarea>
                        <div id="description_editor"></div>
                    </div>
                </div>

                <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                    <div>
                        <label class="inline-flex items-center gap-2 text-sm font-medium text-gray-700 dark:text-gray-300">
                            <input type="checkbox" id="billable" name="billable" {% if (request.form and request.form.get('billable')) or (not request.form and project.billable) %}checked{% endif %} class="rounded border-gray-300 text-primary shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                            {{ _('Billable') }}
                        </label>
                    </div>
                    <div>
                        <label for="hourly_rate" class="form-label">{{ _('Hourly Rate') }}</label>
                        <input type="number" step="0.01" min="0" id="hourly_rate" name="hourly_rate" value="{{ request.form.get('hourly_rate', project.hourly_rate or '') }}" placeholder="e.g. 75.00" class="form-input">
                        <p class="text-xs text-text-muted-light dark:text-text-muted-dark mt-1">{{ _('Leave empty for non-billable projects') }}</p>
                    </div>
                </div>

                <div>
                    <label for="billing_ref" class="form-label">{{ _('Billing Reference') }}</label>
                    <input type="text" id="billing_ref" name="billing_ref" value="{{ request.form.get('billing_ref', project.billing_ref or '') }}" placeholder="Optional" class="form-input">
                </div>

                <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                    <div>
                        <label for="budget_amount" class="form-label">{{ _('Budget Amount') }}</label>
                        <input type="number" step="0.01" min="0" id="budget_amount" name="budget_amount" value="{{ request.form.get('budget_amount', project.budget_amount or '') }}" placeholder="{{ _('e.g. 10000.00') }}" class="form-input">
                    </div>
                    <div>
                        <label for="budget_threshold_percent" class="form-label">{{ _('Alert Threshold (%)') }}</label>
                        <input type="number" step="1" min="0" max="100" id="budget_threshold_percent" name="budget_threshold_percent" value="{{ request.form.get('budget_threshold_percent', project.budget_threshold_percent or 80) }}" placeholder="80" class="form-input">
                    </div>
                </div>

                <div>
                    <label for="color" class="form-label">{{ _('Gantt color') }}</label>
                    <div class="gantt-color-picker flex items-center gap-3 mt-1">
                        <div class="gantt-color-picker-swatch rounded border border-gray-300 dark:border-gray-600 overflow-hidden flex-shrink-0" style="width:2.5rem;height:2.5rem;min-width:2.5rem;min-height:2.5rem;"></div>
                        <input type="text" name="color" id="color" value="{{ request.form.get('color', project.color or '#3b82f6') }}" class="form-input w-28 font-mono text-sm" maxlength="7" placeholder="#3b82f6" data-color-input>
                    </div>
                    <p class="text-xs text-text-muted-light dark:text-text-muted-dark mt-1">{{ _('Optional: Color for this project on the Gantt chart. Pick or enter a hex code (e.g. #3b82f6).') }}</p>
                </div>

                {% if custom_field_definitions %}
                <div class="mt-6 border-t border-border-light dark:border-border-dark pt-6">
                    <h3 class="text-lg font-semibold mb-4">{{ _('Custom Fields') }}</h3>
                    <p class="text-sm text-text-muted-light dark:text-text-muted-dark mb-4">
                        {{ _('These custom fields are defined globally and available for all projects.') }}
                    </p>
                    <div class="space-y-4">
                        {% for definition in custom_field_definitions %}
                        <div>
                            <label for="custom_field_{{ definition.field_key }}" class="form-label">
                                {{ definition.label }}
                                {% if definition.is_mandatory %}<span class="text-red-600 dark:text-red-400">*</span>{% endif %}
                            </label>
                            <input 
                                type="text" 
                                id="custom_field_{{ definition.field_key }}" 
                                name="custom_field_{{ definition.field_key }}" 
                                value="{{ request.form.get('custom_field_' + definition.field_key, project.get_custom_field(definition.field_key, '') if project.custom_fields else '') }}" 
                                placeholder="{{ definition.description or _('Enter value') }}" 
                                class="form-input w-full"
                                {% if definition.is_mandatory %}required{% endif %}
                            >
                            {% if definition.description %}
                            <p class="text-xs text-text-muted-light dark:text-text-muted-dark mt-1">{{ definition.description }}</p>
                            {% endif %}
                        </div>
                        {% endfor %}
                    </div>
                </div>
                {% endif %}

                <div class="mt-6 flex justify-end gap-3 border-t border-border-light dark:border-border-dark pt-4">
                    <a href="{{ url_for('projects.view_project', project_id=project.id) }}" class="bg-gray-200 dark:bg-gray-700 px-4 py-2 rounded-lg">{{ _('Cancel') }}</a>
                    <button type="submit" class="bg-primary text-white px-4 py-2 rounded-lg">{{ _('Save Changes') }}</button>
                </div>
            </form>
        </div>
    </div>
</div>

{% block extra_css %}
<link rel="stylesheet" href="https://uicdn.toast.com/editor/latest/toastui-editor.min.css">
<link rel="stylesheet" href="https://uicdn.toast.com/editor/latest/theme/toastui-editor-dark.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@simonwep/pickr/dist/themes/classic.min.css">
{% endblock %}

{% endblock %}

{% block scripts_extra %}
<script src="https://cdn.jsdelivr.net/npm/@simonwep/pickr/dist/pickr.min.js"></script>
<script src="{{ url_for('static', filename='js/gantt-color-picker.js') }}"></script>
<script src="https://uicdn.toast.com/editor/latest/toastui-editor-all.min.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
    const clientSelect = document.getElementById('client_id');
    const hourlyRateInput = document.getElementById('hourly_rate');
    const descriptionInput = document.getElementById('description');
    function applyClientDefaultRate() {
        let defaultRate = null;
        if (clientSelect.tagName === 'INPUT' && clientSelect.type === 'hidden') {
            defaultRate = clientSelect.getAttribute('data-default-rate');
        } else if (clientSelect.options && clientSelect.selectedIndex >= 0) {
            const selectedOption = clientSelect.options[clientSelect.selectedIndex];
            defaultRate = selectedOption ? selectedOption.getAttribute('data-default-rate') : null;
        }
        if (defaultRate && !hourlyRateInput.value) {
            hourlyRateInput.value = defaultRate;
        }
    }
    clientSelect.addEventListener('change', applyClientDefaultRate);
    applyClientDefaultRate();

    let mdEditor = null;
    if (descriptionInput && window.toastui && window.toastui.Editor) {
        const theme = document.documentElement.classList.contains('dark') ? 'dark' : 'light';
        mdEditor = new toastui.Editor({
            el: document.getElementById('description_editor'),
            height: '340px',
            initialEditType: 'wysiwyg',
            previewStyle: 'vertical',
            usageStatistics: false,
            theme: theme,
            toolbarItems: [
                ['heading', 'bold', 'italic', 'strike'],
                ['hr', 'quote'],
                ['ul', 'ol', 'task'],
                ['link', 'code', 'codeblock', 'table'],
                ['image'],
                ['scrollSync']
            ],
            initialValue: descriptionInput.value || ''
        });

        const observer = new MutationObserver(function(mutations) {
            mutations.forEach(function(mutation) {
                if (mutation.type === 'attributes' && mutation.attributeName === 'class' && mdEditor) {
                    const nextTheme = document.documentElement.classList.contains('dark') ? 'dark' : 'light';
                    try { if (typeof mdEditor.setTheme === 'function') mdEditor.setTheme(nextTheme); } catch (e) {}
                }
            });
        });
        observer.observe(document.documentElement, { attributes: true, attributeFilter: ['class'] });

        mdEditor.removeHook && mdEditor.removeHook('addImageBlobHook');
        mdEditor.addHook && mdEditor.addHook('addImageBlobHook', async (blob, callback) => {
            try {
                const formData = new FormData();
                formData.append('image', blob, blob.name || 'upload.png');
                const res = await fetch('{{ url_for('api.upload_editor_image') }}', { method: 'POST', body: formData });
                const data = await res.json();
                if (data && data.url) { callback(data.url, blob.name || 'image'); }
            } catch (e) { console.error('Image upload error', e); }
        });
    }

    const form = document.querySelector('form[action*="/edit"]') || document.querySelector('form');
    if (form) {
        form.addEventListener('submit', function(){
            if (mdEditor && descriptionInput) {
                try { 
                    descriptionInput.value = mdEditor.getMarkdown(); 
                } catch (err) {
                    console.error('Failed to sync markdown editor:', err);
                }
            }
        });
    }
});
</script>
{% endblock %}