{% extends "base.html" %}
{% block content %}

<div class="container py-4">

  <!-- Header -->
  <div class="mb-4">
    <h2 class="fw-bold mb-2">Biofuel Screening Tool</h2>
    <p class="page-intro-text mb-0">
      Screen candidate fuels from a CSV file using property prediction, cetane number targeting,
      filtering, and Pareto ranking.
    </p>
  </div>

  {% if error %}
  <div class="alert alert-danger">
    <i class="bi bi-exclamation-triangle me-2"></i>{{ error }}
  </div>
  {% endif %}

  {% if info %}
  <div class="alert alert-info">
    <i class="bi bi-info-circle me-2"></i>{{ info }}
  </div>
  {% endif %}

  <!-- Input Form -->
  <div class="card card-metric p-4 mb-4">
    <h5 class="fw-bold mb-3">Screening Configuration</h5>

    <form method="POST" enctype="multipart/form-data">

      <div class="row g-3">

        <div class="col-md-4">
          <label class="form-label fw-semibold">Screening Mode</label>
          <select name="mode" id="screeningMode" class="form-select" onchange="toggleFilterPanel()">
            <option value="pure_component">Pure Component Screening</option>
            <option value="mixture">Mixture Screening</option>
          </select>
          <div class="form-text">
            Pure mode expects a CSV with a <code>smiles</code> column.
            Mixture mode expects mixture database format.
          </div>
        </div>

        <div class="col-md-4">
          <label class="form-label fw-semibold">Target CN</label>
          <input type="number" step="0.01" name="target_cn" class="form-control" value="50">
        </div>

        
        <div class="col-md-4">
          <label class="form-label fw-semibold">CSV File</label>
          <input type="file" name="csv_file" accept=".csv" class="form-control">
          
          <div class="mt-2">
            <div class="small fw-semibold text-muted mb-1">CSV downloads</div>
          
            <div class="d-flex flex-wrap gap-2">
              <a href="{{ url_for('download_pure_screening_template') }}"
                 class="btn btn-outline-primary btn-sm">
                Pure Template
              </a>
          
              <a href="{{ url_for('download_pure_screening_example') }}"
                 class="btn btn-outline-secondary btn-sm">
                Pure Example
              </a>
          
              <a href="{{ url_for('download_mixture_screening_template') }}"
                 class="btn btn-outline-primary btn-sm">
                Mixture Template
              </a>
          
              <a href="{{ url_for('download_mixture_screening_example') }}"
                 class="btn btn-outline-secondary btn-sm">
                Mixture Example
              </a>
            </div>
          </div>
         </div> 

      </div>

      <!-- Pure component filters -->
      <div id="filterPanel" class="border rounded-3 p-3 mt-4">
        <h6 class="fw-bold mb-3">Property Filters for Pure Component Screening</h6>

        <div class="row g-3">

          <div class="col-md-3">
            <label class="form-label small fw-semibold">Min BP (°C)</label>
            <input type="number" step="0.01" name="bp_min" class="form-control" value="60">
          </div>

          <div class="col-md-3">
            <label class="form-label small fw-semibold">Max BP (°C)</label>
            <input type="number" step="0.01" name="bp_max" class="form-control" value="250">
          </div>

          <div class="col-md-2">
            <label class="form-label small fw-semibold">Min Density</label>
            <input type="number" step="0.01" name="density_min" class="form-control" value="720">
          </div>

          <div class="col-md-2">
            <label class="form-label small fw-semibold">Min LHV</label>
            <input type="number" step="0.01" name="lhv_min" class="form-control" value="30">
          </div>

          <div class="col-md-2">
            <label class="form-label small fw-semibold">Min Viscosity</label>
            <input type="number" step="0.01" name="viscosity_min" class="form-control" value="2">
          </div>

        </div>

        <div class="form-text mt-2">
          Default filters match the CLI settings: BP 60–250 °C, density ≥ 720 kg/m³,
          LHV ≥ 30 MJ/kg, and viscosity ≥ 2 cSt.
        </div>
      </div>

      <button type="submit" class="btn btn-primary mt-4">
        Run Screening
      </button>

    </form>
  </div>

  <!-- Run summary -->
  {% if run_info %}
  <div class="card card-metric p-4 mb-4">
    <h5 class="fw-bold mb-3">Screening Summary</h5>

    <div class="row g-3">
      <div class="col-md-3">
        <div class="border rounded-3 p-3 bg-white">
          <p class="text-muted small mb-1">Mode</p>
          <h6 class="fw-bold mb-0">{{ run_info.mode }}</h6>
        </div>
      </div>

      <div class="col-md-3">
        <div class="border rounded-3 p-3 bg-white">
          <p class="text-muted small mb-1">Target CN</p>
          <h6 class="fw-bold mb-0">{{ run_info.target_cn }}</h6>
        </div>
      </div>

      <div class="col-md-2">
        <div class="border rounded-3 p-3 bg-white">
          <p class="text-muted small mb-1">All</p>
          <h6 class="fw-bold mb-0">{{ run_info.n_all }}</h6>
        </div>
      </div>

      <div class="col-md-2">
        <div class="border rounded-3 p-3 bg-white">
          <p class="text-muted small mb-1">Filtered</p>
          <h6 class="fw-bold mb-0">{{ run_info.n_filtered }}</h6>
        </div>
      </div>

      <div class="col-md-2">
        <div class="border rounded-3 p-3 bg-white">
          <p class="text-muted small mb-1">Pareto</p>
          <h6 class="fw-bold mb-0">{{ run_info.n_pareto }}</h6>
        </div>
      </div>
    </div>
  </div>
  {% endif %}

  <!-- Filtered results -->
  {% if filtered_table %}
  <div class="card card-metric p-4 mb-4">
    <div class="d-flex justify-content-between align-items-center flex-wrap gap-2 mb-3">
      <h5 class="fw-bold mb-0">Top / Filtered Candidates</h5>
      <form method="POST" action="{{ url_for('download_screening_result', result_type='filtered') }}">
        <input type="hidden" name="results_data" value='{{ filtered_records | tojson }}'>
        <button type="submit" class="btn btn-outline-success btn-sm">
          Download Filtered CSV
        </button>
      </form>
    </div>

    <div class="table-responsive app-table-wrap molecule-table">
      {{ filtered_table | safe }}
    </div>
  </div>
  {% endif %}

  <!-- Pareto results -->
  {% if pareto_table %}
  <div class="card card-metric p-4 mb-4">
    <div class="d-flex justify-content-between align-items-center flex-wrap gap-2 mb-3">
      <h5 class="fw-bold mb-0">Pareto Front</h5>
      <form method="POST" action="{{ url_for('download_screening_result', result_type='pareto') }}">
        <input type="hidden" name="results_data" value='{{ pareto_records | tojson }}'>
        <button type="submit" class="btn btn-outline-primary btn-sm">
          Download Pareto CSV
        </button>
      </form>
    </div>

    <p class="text-muted small">
      Pareto candidates balance low CN error with low YSI.
    </p>

    <div class="table-responsive app-table-wrap molecule-table">
      {{ pareto_table | safe }}
    </div>
  </div>
  {% endif %}

  <!-- All candidates -->
  {% if all_table %}
  <div class="card card-metric p-4 mb-4">
    <div class="d-flex justify-content-between align-items-center flex-wrap gap-2 mb-3">
      <h5 class="fw-bold mb-0">All Candidates</h5>
      <form method="POST" action="{{ url_for('download_screening_result', result_type='all') }}">
        <input type="hidden" name="results_data" value='{{ all_records | tojson }}'>
        <button type="submit" class="btn btn-outline-secondary btn-sm">
          Download All CSV
        </button>
      </form>
    </div>

    <div class="table-responsive app-table-wrap molecule-table">
      {{ all_table | safe }}
    </div>
  </div>
  {% endif %}

</div>

<script>
function toggleFilterPanel() {
  const mode = document.getElementById("screeningMode").value;
  const panel = document.getElementById("filterPanel");

  if (mode === "pure_component") {
    panel.style.display = "block";
  } else {
    panel.style.display = "none";
  }
}

document.addEventListener("DOMContentLoaded", toggleFilterPanel);
</script>

{% endblock %}