{# ============================================================================
   AI Config Modal - Spec 026: AI Smart Scheduling

   Configuration interface for AI schedule generation.
   Features:
   - Optimization priority selector (drag-to-reorder)
   - Custom instructions textarea
   - Owner toggles with availability status
   - Usage counter display
   - Re-optimization warning modal

   SDD Reference: lines 1464-1479 (AiConfigModal component structure)
   PRD Reference: lines 98-104 (AI Generation user flow)
   ============================================================================ #}

<div class="modal fade" id="aiConfigModal" tabindex="-1" aria-labelledby="aiConfigModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header bg-gradient-primary text-white">
                <h5 class="modal-title" id="aiConfigModalLabel">
                    <i class="fa-solid fa-robot me-2"></i>Generate Schedule with AI
                </h5>
                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">
                {# Loading state #}
                <div id="aiConfigLoading" class="text-center py-5">
                    <i class="fa-solid fa-spinner fa-spin fa-2x text-primary"></i>
                    <p class="mt-3 text-muted">Loading AI configuration...</p>
                </div>

                {# Main content (hidden until loaded) #}
                <div id="aiConfigContent" class="d-none">
                    {# Rate Limit Warning #}
                    <div id="aiRateLimitWarning" class="alert alert-warning d-none" role="alert">
                        <i class="fa-solid fa-exclamation-triangle me-2"></i>
                        <span id="aiRateLimitMessage">You've reached the weekly generation limit.</span>
                    </div>

                    {# Pending Job Warning #}
                    <div id="aiPendingJobWarning" class="alert alert-info d-none" role="alert">
                        <div class="d-flex align-items-center justify-content-between">
                            <div>
                                <i class="fa-solid fa-clock me-2"></i>
                                <span>A schedule generation is already <strong id="aiPendingJobStatus">pending</strong> for this week.</span>
                            </div>
                            <button type="button" class="btn btn-sm btn-danger ms-3" id="aiCancelPendingJobBtn">
                                <i class="fa-solid fa-ban me-1"></i>Cancel Job
                            </button>
                        </div>
                        <small class="d-block mt-2 text-muted">
                            Cancel the existing job to start a new generation.
                        </small>
                    </div>

                    {# Usage Counter #}
                    <div class="d-flex justify-content-between align-items-center mb-4 p-3 bg-light rounded">
                        <div>
                            <h6 class="mb-1"><i class="fa-solid fa-chart-pie me-2 text-primary"></i>AI Generation Usage</h6>
                            <small class="text-muted">Usage resets at the start of each pay period</small>
                        </div>
                        <div class="text-end">
                            <div class="h4 mb-0">
                                <span id="aiUsageCount" class="text-primary">0</span>
                                <span class="text-muted">/</span>
                                <span id="aiUsageLimit" class="text-muted">5</span>
                            </div>
                            <small class="text-muted">runs this period</small>
                        </div>
                    </div>

                    {# Week Info #}
                    <div class="mb-4">
                        <label class="form-label fw-semibold">
                            <i class="fa-solid fa-calendar-week me-2"></i>Schedule Week
                        </label>
                        <div class="form-control bg-light" id="aiSelectedWeek">
                            {# Populated by JS #}
                        </div>
                        <div class="form-text" id="aiOpenShiftsInfo">
                            <span id="aiOpenShiftCount">0</span> open shifts to fill
                        </div>
                    </div>

                    {# Solver Type Selector (Spec 038 Phase 7) #}
                    <div class="mb-4" id="aiSolverTypeSection">
                        <label class="form-label fw-semibold">
                            <i class="fa-solid fa-microchip me-2"></i>Scheduling Engine
                        </label>
                        <div class="d-flex gap-3" role="radiogroup" aria-label="Scheduling engine type">
                            <div class="form-check form-check-card flex-fill" id="aiSolverMathContainer" style="display: none;" aria-live="polite">
                                <input class="form-check-input" type="radio" name="solverType" id="aiSolverMath" value="math">
                                <label class="form-check-label w-100" for="aiSolverMath">
                                    <div class="fw-medium"><i class="fa-solid fa-calculator me-1"></i>Smart Scheduler</div>
                                    <small class="text-muted d-block mt-1">Builds the most cost-effective schedule automatically. Best when keeping labor costs low is your top priority.</small>
                                </label>
                            </div>
                            <div class="form-check form-check-card flex-fill">
                                <input class="form-check-input" type="radio" name="solverType" id="aiSolverAi" value="ai" checked>
                                <label class="form-check-label w-100" for="aiSolverAi">
                                    <div class="fw-medium"><i class="fa-solid fa-robot me-1"></i>AI Assistant</div>
                                    <small class="text-muted d-block mt-1">Tell it what you need in plain English and it adapts. Best when you have specific preferences or unique scheduling needs.</small>
                                </label>
                            </div>
                        </div>
                    </div>

                    {# Optimization Priorities #}
                    <div class="mb-4">
                        <label class="form-label fw-semibold">
                            <i class="fa-solid fa-sliders me-2"></i>Optimization Priorities
                        </label>
                        <p class="text-muted small mb-2">Drag to reorder. Higher items have more weight.</p>
                        <ul id="aiPriorityList" class="list-group priority-sortable">
                            <li class="list-group-item d-flex align-items-center priority-item" data-priority="labor_cost">
                                <i class="fa-solid fa-grip-vertical me-3 text-muted drag-handle"></i>
                                <div class="flex-grow-1">
                                    <div class="fw-medium">Labor Cost</div>
                                    <small class="text-muted">Prefer lower-cost employees when qualifications are equal</small>
                                </div>
                                <span class="badge bg-primary priority-rank">1</span>
                            </li>
                            <li class="list-group-item d-flex align-items-center priority-item" data-priority="hours_fairness">
                                <i class="fa-solid fa-grip-vertical me-3 text-muted drag-handle"></i>
                                <div class="flex-grow-1">
                                    <div class="fw-medium">Hours Fairness</div>
                                    <small class="text-muted">Distribute hours evenly among employees based on their requested hours</small>
                                </div>
                                <span class="badge bg-primary priority-rank">2</span>
                            </li>
                            <li class="list-group-item d-flex align-items-center priority-item" data-priority="seniority">
                                <i class="fa-solid fa-grip-vertical me-3 text-muted drag-handle"></i>
                                <div class="flex-grow-1">
                                    <div class="fw-medium">Seniority</div>
                                    <small class="text-muted">Prefer more senior employees for shifts</small>
                                </div>
                                <span class="badge bg-primary priority-rank">3</span>
                            </li>
                            <li class="list-group-item d-flex align-items-center priority-item" data-priority="position_coverage">
                                <i class="fa-solid fa-grip-vertical me-3 text-muted drag-handle"></i>
                                <div class="flex-grow-1">
                                    <div class="fw-medium">Position Coverage</div>
                                    <small class="text-muted">Ensure adequate role coverage per shift</small>
                                </div>
                                <span class="badge bg-primary priority-rank">4</span>
                            </li>
                        </ul>
                    </div>

                    {# Custom Instructions (only for AI solver) #}
                    <div class="mb-4" id="aiCustomInstructionsContainer">
                        <label for="aiCustomInstructions" class="form-label fw-semibold">
                            <i class="fa-solid fa-comment-dots me-2"></i>Custom Instructions (Optional)
                        </label>
                        <textarea class="form-control" id="aiCustomInstructions" rows="3" maxlength="500"
                                  placeholder="Any special considerations for this schedule? e.g., 'Sarah prefers morning shifts', 'Need extra coverage on Saturday'"></textarea>
                        <div class="form-text d-flex justify-content-between">
                            <span>Add any specific instructions for the AI</span>
                            <span><span id="aiInstructionsCount">0</span>/500</span>
                        </div>
                    </div>

                    {# Owner Toggles #}
                    <div class="mb-4" id="aiOwnerTogglesSection">
                        <label class="form-label fw-semibold">
                            <i class="fa-solid fa-crown me-2"></i>Owner Scheduling
                        </label>
                        <p class="text-muted small mb-2">Owners are excluded by default. Toggle to include specific owners.</p>
                        <div id="aiOwnerToggles" class="border rounded p-3">
                            {# Populated dynamically #}
                            <div class="text-center text-muted py-2">
                                <i class="fa-solid fa-spinner fa-spin me-2"></i>Loading owners...
                            </div>
                        </div>
                    </div>

                    {# Email Notification Option #}
                    <div class="form-check mb-3">
                        <input class="form-check-input" type="checkbox" id="aiNotifyByEmail">
                        <label class="form-check-label" for="aiNotifyByEmail">
                            <i class="fa-solid fa-envelope me-1"></i>
                            Email me when schedule is ready
                        </label>
                    </div>

                    {# Save Defaults Checkbox #}
                    <div class="form-check">
                        <input class="form-check-input" type="checkbox" id="aiSaveDefaults" checked>
                        <label class="form-check-label" for="aiSaveDefaults">
                            <i class="fa-solid fa-floppy-disk me-1"></i>
                            Save these settings as defaults
                        </label>
                    </div>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal" id="aiConfigCancelBtn">Cancel</button>
                <button type="button" class="btn btn-primary" id="aiGenerateSubmitBtn" disabled>
                    <i class="fa-solid fa-robot me-2"></i>Generate Schedule
                </button>
            </div>
        </div>
    </div>
</div>

{# Re-optimization Warning Modal #}
<div class="modal fade" id="aiReoptimizeWarningModal" tabindex="-1" aria-labelledby="aiReoptimizeWarningLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header bg-warning">
                <h5 class="modal-title" id="aiReoptimizeWarningLabel">
                    <i class="fa-solid fa-triangle-exclamation me-2"></i>Replace Existing AI Assignments?
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">
                <p>This week already has <strong><span id="aiExistingCount">0</span></strong> AI-assigned shifts.</p>
                <p>Regenerating will <strong>replace all existing AI assignments</strong> with new suggestions.</p>
                <div class="alert alert-info small">
                    <i class="fa-solid fa-info-circle me-2"></i>
                    Manually-assigned shifts will not be affected.
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-warning" id="aiForceRegenerateBtn">
                    <i class="fa-solid fa-rotate me-2"></i>Replace & Regenerate
                </button>
            </div>
        </div>
    </div>
</div>