{% extends "base.html" %}

{% block title %}{{ _('Bulk Time Entry') }} - {{ app_name }}{% endblock %}

{% block content %}
{% block extra_css %}
<style>
/* Bulk Entry alignment tweaks (light/dark consistent) */
.bulk-entry .form-label { color: var(--text-primary); }
.bulk-entry .card { border: 1px solid var(--border-color); }
.bulk-entry .card-body .form-control,
.bulk-entry .card-body .form-select { background: #ffffff; }
[data-theme="dark"] .bulk-entry .card-body .form-control,
[data-theme="dark"] .bulk-entry .card-body .form-select { background: #0f172a; color: var(--text-primary); border-color: var(--border-color); }
.bulk-entry .form-control::placeholder { color: var(--text-muted); }
[data-theme="dark"] .bulk-entry .form-control::placeholder { color: #64748b; }
.bulk-entry .form-check-input { cursor: pointer; }

/* Date range preview */
.date-range-preview {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.75rem;
    margin-top: 0.5rem;
}

.date-range-preview.show {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.preview-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.preview-stat {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.preview-stat.secondary {
    background: var(--secondary-color);
}

.preview-dates {
    margin-top: 0.5rem;
    max-height: 120px;
    overflow-y: auto;
    font-size: 0.875rem;
    color: var(--text-muted);
}
</style>
{% endblock %}
<div class="container-fluid bulk-entry">
    {% from "_components.html" import page_header %}
    <div class="row g-3">
        <div class="col-12">
            {% set actions %}
            <a href="{{ url_for('main.dashboard') }}" class="btn btn-outline-light btn-sm">
                <i class="fas fa-arrow-left"></i> {{ _('Back') }}
            </a>
            <a href="{{ url_for('timer.manual_entry') }}" class="btn btn-outline-light btn-sm">
                <i class="fas fa-clock"></i> {{ _('Single Entry') }}
            </a>
            {% endset %}
            {{ page_header('fas fa-calendar-plus', _('Bulk Time Entry'), _('Create multiple time entries for consecutive days'), actions) }}
        </div>
    </div>

    <div class="row">
        <div class="col-lg-8">
            <div class="card shadow-sm border-0">
                <div class="card-header d-flex justify-content-between align-items-center">
                    <h6 class="m-0">
                        <i class="fas fa-calendar-plus me-2 text-primary"></i>{{ _('Bulk Entry Form') }}
                    </h6>
                    <div class="d-none d-md-flex gap-2">
                        <a href="{{ url_for('timer.bulk_entry') }}" class="btn-header btn-outline-primary">
                            <i class="fas fa-rotate-right me-1"></i> {{ _('Reset') }}
                        </a>
                    </div>
                </div>
                <div class="card-body">
                    <form method="POST" action="{{ url_for('timer.bulk_entry') }}" id="bulkEntryForm">
                        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="project_id" class="form-label fw-semibold">
                                        <i class="fas fa-project-diagram me-1"></i>{{ _('Project') }} *
                                    </label>
                                    <select class="form-select" id="project_id" name="project_id" required>
                                        <option value=""></option>
                                        {% set selected_project_id = (request.form.get('project_id') or selected_project_id or '')|int %}
                                        {% for project in projects %}
                                            <option value="{{ project.id }}" {% if project.id == selected_project_id %}selected{% endif %}>{{ project.name }}</option>
                                        {% endfor %}
                                    </select>
                                    <div class="form-text">{{ _('Select the project to log time for') }}</div>
                                </div>
                            </div>
                            <div class="col-md-6">
                                {% set preselected_task_id = request.form.get('task_id') or selected_task_id %}
                                <div class="mb-3">
                                    <label for="task_id" class="form-label fw-semibold">
                                        <i class="fas fa-tasks me-1"></i>{{ _('Task (optional)') }}
                                    </label>
                                    <select class="form-select" id="task_id" name="task_id" data-selected-task-id="{{ preselected_task_id or '' }}" disabled>
                                        <option value=""></option>
                                    </select>
                                    <div class="form-text">{{ _('Tasks load after selecting a project') }}</div>
                                </div>
                            </div>
                        </div>

                        <!-- Date Range Selection -->
                        <div class="row g-3 mb-3">
                            <div class="col-12">
                                <div class="card border-0 shadow-sm">
                                    <div class="card-body">
                                        <div class="mb-3 fw-semibold text-primary">
                                            <i class="fas fa-calendar-alt me-1"></i>{{ _('Date Range') }} *
                                        </div>
                                        <div class="row g-2">
                                            <div class="col-md-6">
                                                <label for="start_date" class="form-label fw-semibold">{{ _('Start Date') }}</label>
                                                <input type="date" class="form-control" name="start_date" id="start_date" required value="{{ request.form.get('start_date','') }}">
                                            </div>
                                            <div class="col-md-6">
                                                <label for="end_date" class="form-label fw-semibold">{{ _('End Date') }}</label>
                                                <input type="date" class="form-control" name="end_date" id="end_date" required value="{{ request.form.get('end_date','') }}">
                                            </div>
                                        </div>
                                        <div class="form-check form-switch mt-2">
                                            <input class="form-check-input" type="checkbox" id="skip_weekends" name="skip_weekends" {% if request.form.get('skip_weekends') %}checked{% endif %}>
                                            <label class="form-check-label" for="skip_weekends">
                                                {{ _('Skip weekends (Saturday & Sunday)') }}
                                            </label>
                                        </div>
                                        <!-- Date Range Preview -->
                                        <div id="dateRangePreview" class="date-range-preview" style="display: none;">
                                            <div class="d-flex justify-content-between align-items-center mb-2">
                                                <strong>{{ _('Preview') }}</strong>
                                                <small class="text-muted">{{ _('Entries will be created for these dates') }}</small>
                                            </div>
                                            <div class="preview-stats" id="previewStats"></div>
                                            <div class="preview-dates" id="previewDates"></div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <!-- Time Range -->
                        <div class="row g-3">
                            <div class="col-12 col-md-6">
                                <div class="card border-0 shadow-sm">
                                    <div class="card-body">
                                        <div class="mb-2 fw-semibold text-primary"><i class="fas fa-play me-1"></i>{{ _('Start Time') }} *</div>
                                        <input type="time" class="form-control" name="start_time" id="start_time" required value="{{ request.form.get('start_time','') }}">
                                        <div class="form-text">{{ _('Same start time for all days') }}</div>
                                    </div>
                                </div>
                            </div>
                            <div class="col-12 col-md-6">
                                <div class="card border-0 shadow-sm">
                                    <div class="card-body">
                                        <div class="mb-2 fw-semibold text-primary"><i class="fas fa-stop me-1"></i>{{ _('End Time') }} *</div>
                                        <input type="time" class="form-control" name="end_time" id="end_time" required value="{{ request.form.get('end_time','') }}">
                                        <div class="form-text">{{ _('Same end time for all days') }}</div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <div class="my-3">
                            <label for="notes" class="form-label fw-semibold">
                                <i class="fas fa-sticky-note me-1"></i>{{ _('Notes') }}
                            </label>
                            <textarea class="form-control" id="notes" name="notes" style="height: 100px" placeholder="{{ _('What did you work on? (same notes for all entries)') }}">{{ request.form.get('notes','') }}</textarea>
                        </div>

                        <div class="row g-3 align-items-center">
                            <div class="col-12 col-md-8">
                                <div class="mb-3 mb-md-0">
                                    <label for="tags" class="form-label fw-semibold">
                                        <i class="fas fa-tags me-1"></i>{{ _('Tags') }}
                                    </label>
                                    <input type="text" class="form-control" id="tags" name="tags" placeholder="{{ _('tag1, tag2, tag3') }}" value="{{ request.form.get('tags','') }}">
                                    <div class="form-text">{{ _('Separate tags with commas (same for all entries)') }}</div>
                                </div>
                            </div>
                            <div class="col-12 col-md-4">
                                <div class="mb-3 mb-md-0">
                                    <label class="form-label fw-semibold d-block" for="billable">
                                        <i class="fas fa-dollar-sign me-1"></i>{{ _('Billable') }}
                                    </label>
                                    <div class="form-check form-switch d-flex align-items-center">
                                        <input class="form-check-input" type="checkbox" id="billable" name="billable" {% if request.form.get('billable') %}checked{% else %}checked{% endif %}>
                                        <span class="ms-2 text-muted small">{{ _('Include in invoices') }}</span>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <div class="d-flex justify-content-between flex-column flex-md-row mt-3">
                            <a href="{{ url_for('main.dashboard') }}" class="btn btn-outline-secondary mb-2 mb-md-0">
                                <i class="fas fa-arrow-left me-1"></i> {{ _('Back') }}
                            </a>
                            <div class="btn-group" role="group">
                                <button type="submit" class="btn btn-primary" id="submitBtn">
                                    <i class="fas fa-save me-2"></i><span id="submitText">{{ _('Create Entries') }}</span>
                                </button>
                                <button type="reset" class="btn btn-outline-primary">
                                    <i class="fas fa-broom me-2"></i>{{ _('Clear') }}
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <div class="col-lg-4">
            <div class="card shadow-sm border-0">
                <div class="card-header">
                    <h6 class="m-0">
                        <i class="fas fa-lightbulb me-2 text-warning"></i>{{ _('Bulk Entry Tips') }}
                    </h6>
                </div>
                <div class="card-body">
                    <div class="tip-item mb-3 d-flex gap-3">
                        <div class="tip-icon text-primary"><i class="fas fa-calendar-alt"></i></div>
                        <div class="tip-content">
                            <strong>{{ _('Date Range') }}</strong>
                            <p class="small text-muted mb-0">{{ _('Select start and end dates. Entries will be created for each day in the range.') }}</p>
                        </div>
                    </div>
                    <div class="tip-item mb-3 d-flex gap-3">
                        <div class="tip-icon text-info"><i class="fas fa-calendar-times"></i></div>
                        <div class="tip-content">
                            <strong>{{ _('Skip Weekends') }}</strong>
                            <p class="small text-muted mb-0">{{ _('Enable to automatically skip Saturdays and Sundays from the date range.') }}</p>
                        </div>
                    </div>
                    <div class="tip-item mb-3 d-flex gap-3">
                        <div class="tip-icon text-success"><i class="fas fa-clock"></i></div>
                        <div class="tip-content">
                            <strong>{{ _('Same Time Daily') }}</strong>
                            <p class="small text-muted mb-0">{{ _('All entries will use the same start and end time each day.') }}</p>
                        </div>
                    </div>
                    <div class="tip-item d-flex gap-3">
                        <div class="tip-icon text-warning"><i class="fas fa-exclamation-triangle"></i></div>
                        <div class="tip-content">
                            <strong>{{ _('Conflict Check') }}</strong>
                            <p class="small text-muted mb-0">{{ _('System will check for existing time entries and prevent overlaps.') }}</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<style>
.form-floating > label {
    background-color: transparent;
    color: var(--text-secondary);
}
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select:focus ~ label,
.form-floating > .form-select:not([value=""]) ~ label {
    color: var(--primary-color);
}

/* Ensure task field label gets proper dark mode styling */
#task_id:focus ~ label,
#task_id:not([value=""]) ~ label {
    color: var(--primary-color) !important;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.15);
}

/* Fix form-text visibility in both light and dark modes */
.form-text {
    color: var(--text-muted) !important;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
    position: relative;
    z-index: 1;
}

[data-theme="dark"] .form-text {
    color: var(--text-muted) !important;
}

.tip-icon { font-size: 18px; }

/* Match invoices page look-and-feel */
.card-header {
    border-bottom: 1px solid var(--border-color);
}
.card.shadow-sm {
    border: 1px solid var(--border-color);
}
.btn-outline-primary {
    border-width: 1px;
}
.btn-outline-primary:hover {
    color: #fff;
}
</style>

<script type="application/json" id="i18n-json-timer-bulk">
{
  "no_task": {{ _('No task')|tojson }},
  "failed_load": {{ _('Failed to load tasks')|tojson }},
  "total_days": {{ _('Total days')|tojson }},
  "weekdays_only": {{ _('Weekdays only')|tojson }},
  "total_hours": {{ _('Total hours')|tojson }},
  "entries_for": {{ _('Entries will be created for')|tojson }}
}
</script>
<script>
var i18nTimerBulk = (function(){ try{ var el=document.getElementById('i18n-json-timer-bulk'); return el?JSON.parse(el.textContent):{}; }catch(e){ return {}; } })();
document.addEventListener('DOMContentLoaded', function() {
    // Set default dates to today
    const today = new Date().toISOString().split('T')[0];
    const now = new Date().toTimeString().slice(0, 5);
    
    if (!document.getElementById('start_date').value) {
        document.getElementById('start_date').value = today;
    }
    if (!document.getElementById('end_date').value) {
        document.getElementById('end_date').value = today;
    }
    if (!document.getElementById('start_time').value) {
        document.getElementById('start_time').value = '09:00';
    }
    if (!document.getElementById('end_time').value) {
        document.getElementById('end_time').value = '17:00';
    }
    
    // Mobile-specific improvements
    if (window.innerWidth <= 768) {
        // Add mobile-specific classes
        const form = document.querySelector('form');
        form.classList.add('mobile-form');
        
        // Improve touch targets
        const inputs = document.querySelectorAll('.form-control, .form-select');
        inputs.forEach(input => {
            input.classList.add('touch-target');
        });
        
        // Improve buttons
        const buttons = document.querySelectorAll('.btn');
        buttons.forEach(btn => {
            btn.classList.add('touch-target');
        });
    }
    
    // Handle mobile viewport changes
    window.addEventListener('resize', function() {
        if (window.innerWidth <= 768) {
            document.body.classList.add('mobile-view');
        } else {
            document.body.classList.remove('mobile-view');
        }
    });

    // Dynamic task loading based on project selection
    const projectSelect = document.getElementById('project_id');
    const taskSelect = document.getElementById('task_id');

    const L = { 
        noTask: i18nTimerBulk.no_task || 'No task', 
        failedLoad: i18nTimerBulk.failed_load || 'Failed to load tasks',
        totalDays: i18nTimerBulk.total_days || 'Total days',
        weekdaysOnly: i18nTimerBulk.weekdays_only || 'Weekdays only',
        totalHours: i18nTimerBulk.total_hours || 'Total hours',
        entriesFor: i18nTimerBulk.entries_for || 'Entries will be created for'
    };

    async function loadTasksForProject(projectId) {
        if (!projectId) {
            taskSelect.innerHTML = '<option value="">' + L.noTask + '</option>';
            taskSelect.disabled = true;
            return;
        }
        try {
            const resp = await fetch(`/api/tasks?project_id=${projectId}`);
            if (!resp.ok) throw new Error(L.failedLoad);
            const data = await resp.json();
            const tasks = Array.isArray(data.tasks) ? data.tasks : [];
            taskSelect.innerHTML = '<option value="">' + L.noTask + '</option>';
            tasks.forEach(t => {
                const opt = document.createElement('option');
                opt.value = String(t.id);
                opt.textContent = t.name;
                taskSelect.appendChild(opt);
            });
            // Preselect if provided
            const preId = taskSelect.getAttribute('data-selected-task-id');
            if (preId) {
                const found = Array.from(taskSelect.options).some(o => o.value === preId);
                if (found) taskSelect.value = preId;
                // Clear after first use
                taskSelect.setAttribute('data-selected-task-id', '');
            }
            taskSelect.disabled = false;
        } catch (e) {
            // On error, keep disabled
            taskSelect.innerHTML = '<option value="">' + L.noTask + '</option>';
            taskSelect.disabled = true;
        }
    }

    // Initial load if project is already selected (from query/form)
    if (projectSelect && projectSelect.value) {
        loadTasksForProject(projectSelect.value);
    }

    // Reload tasks when project changes
    projectSelect.addEventListener('change', function() {
        // Clear any previous selection
        taskSelect.value = '';
        taskSelect.setAttribute('data-selected-task-id', '');
        loadTasksForProject(this.value);
    });

    // Date range preview functionality
    const startDateInput = document.getElementById('start_date');
    const endDateInput = document.getElementById('end_date');
    const skipWeekendsInput = document.getElementById('skip_weekends');
    const startTimeInput = document.getElementById('start_time');
    const endTimeInput = document.getElementById('end_time');
    const previewDiv = document.getElementById('dateRangePreview');
    const previewStats = document.getElementById('previewStats');
    const previewDates = document.getElementById('previewDates');
    const submitBtn = document.getElementById('submitBtn');
    const submitText = document.getElementById('submitText');

    function updatePreview() {
        const startDate = startDateInput.value;
        const endDate = endDateInput.value;
        const skipWeekends = skipWeekendsInput.checked;
        const startTime = startTimeInput.value;
        const endTime = endTimeInput.value;

        if (!startDate || !endDate) {
            previewDiv.style.display = 'none';
            return;
        }

        const start = new Date(startDate);
        const end = new Date(endDate);
        
        if (end < start) {
            previewDiv.style.display = 'none';
            return;
        }

        // Generate date list
        const dates = [];
        const current = new Date(start);
        
        while (current <= end) {
            if (!skipWeekends || (current.getDay() !== 0 && current.getDay() !== 6)) {
                dates.push(new Date(current));
            }
            current.setDate(current.getDate() + 1);
        }

        if (dates.length === 0) {
            previewDiv.style.display = 'none';
            return;
        }

        // Calculate total hours if times are provided
        let totalHours = 0;
        if (startTime && endTime) {
            const startTimeDate = new Date(`2000-01-01T${startTime}:00`);
            const endTimeDate = new Date(`2000-01-01T${endTime}:00`);
            const diffMs = endTimeDate - startTimeDate;
            const hoursPerDay = diffMs / (1000 * 60 * 60);
            totalHours = hoursPerDay * dates.length;
        }

        // Update stats
        previewStats.innerHTML = '';
        
        const totalDaysStat = document.createElement('span');
        totalDaysStat.className = 'preview-stat';
        totalDaysStat.textContent = `${dates.length} ${L.totalDays}`;
        previewStats.appendChild(totalDaysStat);

        if (skipWeekends) {
            const weekdaysStat = document.createElement('span');
            weekdaysStat.className = 'preview-stat secondary';
            weekdaysStat.textContent = L.weekdaysOnly;
            previewStats.appendChild(weekdaysStat);
        }

        if (totalHours > 0) {
            const hoursStat = document.createElement('span');
            hoursStat.className = 'preview-stat';
            hoursStat.textContent = `${totalHours.toFixed(1)}h ${L.totalHours}`;
            previewStats.appendChild(hoursStat);
        }

        // Update dates list
        const dateStrings = dates.map(d => d.toLocaleDateString()).join(', ');
        previewDates.textContent = `${L.entriesFor}: ${dateStrings}`;

        // Update submit button text
        submitText.textContent = `Create ${dates.length} Entries`;

        // Show preview
        previewDiv.style.display = 'block';
        previewDiv.classList.add('show');
    }

    // Add event listeners for preview updates
    [startDateInput, endDateInput, skipWeekendsInput, startTimeInput, endTimeInput].forEach(input => {
        input.addEventListener('change', updatePreview);
        input.addEventListener('input', updatePreview);
    });

    // Initial preview update
    updatePreview();

    // Form submission handling
    document.getElementById('bulkEntryForm').addEventListener('submit', function(e) {
        submitBtn.disabled = true;
        submitText.textContent = 'Creating...';
    });
});
</script>
{% endblock %}