{% extends 'django_forms_workflows/base.html' %}
{% load crispy_forms_tags %}
{% load forms_workflows_tags %}

{% block title %}Approve Submission #{{ submission.id }} - {{ site_name }}{% endblock %}

{% block content %}
<div class="row">
    <div class="col-lg-10 mx-auto">
        <h1 class="mb-4">Review Submission</h1>

        <!-- Approval Progress (staged / sequential / parallel) -->
        {% if workflow_mode != "none" %}
        <div class="card mb-4">
            <div class="card-header bg-light">
                <h5 class="mb-0"><i class="bi bi-diagram-3"></i> Approval Progress</h5>
            </div>
            <div class="card-body">

                {% if workflow_mode == "staged" %}
                {# ---- staged pipeline ---- #}
                <div class="d-flex justify-content-between align-items-start flex-wrap gap-2">
                    {% for stage in approval_stages %}
                    <div class="text-center flex-fill p-2">
                        <div class="rounded-circle d-inline-flex justify-content-center align-items-center mb-2
                            {% if stage.is_completed %}bg-success text-white
                            {% elif stage.is_current %}bg-primary text-white
                            {% elif stage.is_rejected %}bg-danger text-white
                            {% else %}bg-light text-muted border{% endif %}"
                            style="width:44px;height:44px;font-weight:bold;">
                            {% if stage.is_completed %}<i class="bi bi-check-lg"></i>
                            {% elif stage.is_rejected %}<i class="bi bi-x-lg"></i>
                            {% else %}{{ stage.number }}{% endif %}
                        </div>
                        <div class="{% if stage.is_current %}fw-bold text-primary{% elif stage.is_pending %}text-muted{% endif %}">
                            <small>{{ stage.name }}</small><br>
                            {% if stage.approval_logic == "all" %}<span class="badge bg-secondary" style="font-size:10px;">All must approve</span>
                            {% elif stage.approval_logic == "any" %}<span class="badge bg-info text-dark" style="font-size:10px;">Any can approve</span>
                            {% else %}<span class="badge bg-light text-muted border" style="font-size:10px;">Sequential</span>{% endif %}
                            {% if stage.total_count > 0 %}<br><small class="text-muted">{{ stage.approved_count }}/{{ stage.total_count }} approved</small>{% endif %}
                        </div>
                    </div>
                    {% if not forloop.last %}
                    <div class="flex-shrink-0 align-self-start pt-3 text-muted d-none d-md-block"><i class="bi bi-arrow-right-circle fs-5"></i></div>
                    {% endif %}
                    {% endfor %}
                </div>
                {% if current_stage_number and total_stages %}
                <p class="text-center text-muted mt-2 mb-0"><small>Stage {{ current_stage_number }} of {{ total_stages }}</small></p>
                {% endif %}

                {% elif workflow_mode == "sequence" %}
                {# ---- sequential legacy ---- #}
                <div class="d-flex justify-content-between align-items-center flex-wrap">
                    {% for step in approval_steps %}
                    <div class="text-center flex-fill p-2">
                        <div class="rounded-circle d-inline-flex justify-content-center align-items-center mb-2
                            {% if step.is_completed %}bg-success text-white
                            {% elif step.is_current %}bg-primary text-white
                            {% elif step.is_rejected %}bg-danger text-white
                            {% else %}bg-light text-muted border{% endif %}"
                            style="width:40px;height:40px;">
                            {% if step.is_completed %}<i class="bi bi-check"></i>
                            {% elif step.is_rejected %}<i class="bi bi-x"></i>
                            {% else %}{{ step.number }}{% endif %}
                        </div>
                        <div class="{% if step.is_current %}fw-bold text-primary{% elif step.is_pending %}text-muted{% endif %}">
                            <small>{{ step.group_name }}</small>
                        </div>
                    </div>
                    {% if not forloop.last %}
                    <div class="flex-shrink-1 px-2 text-muted d-none d-md-block"><i class="bi bi-arrow-right"></i></div>
                    {% endif %}
                    {% endfor %}
                </div>

                {% elif workflow_mode == "all" or workflow_mode == "any" %}
                {# ---- parallel legacy (all/any) ---- #}
                {% if workflow_mode == "all" %}
                <p class="text-muted small mb-3"><i class="bi bi-info-circle"></i> All groups listed below must approve this submission.</p>
                {% else %}
                <p class="text-muted small mb-3"><i class="bi bi-info-circle"></i> Any one of the groups below can approve this submission.</p>
                {% endif %}
                <div class="d-flex flex-wrap gap-3 justify-content-center">
                    {% for pt in parallel_tasks %}
                    <div class="text-center p-2">
                        <div class="rounded-circle d-inline-flex justify-content-center align-items-center mb-2
                            {% if pt.task.status == 'approved' %}bg-success text-white
                            {% elif pt.task.status == 'rejected' %}bg-danger text-white
                            {% elif pt.is_current %}bg-primary text-white
                            {% else %}bg-light text-muted border{% endif %}"
                            style="width:40px;height:40px;">
                            {% if pt.task.status == 'approved' %}<i class="bi bi-check"></i>
                            {% elif pt.task.status == 'rejected' %}<i class="bi bi-x"></i>
                            {% else %}<i class="bi bi-hourglass-split"></i>{% endif %}
                        </div>
                        <div class="{% if pt.is_current %}fw-bold text-primary{% endif %}">
                            <small>{{ pt.group_name }}</small>
                        </div>
                    </div>
                    {% endfor %}
                </div>
                {% endif %}

            </div>
        </div>
        {% endif %}

        <!-- Submission Info -->
        <div class="card mb-4">
            <div class="card-header">
                <h5 class="mb-0"><i class="bi bi-info-circle"></i> Submission Information</h5>
            </div>
            <div class="card-body">
                <div class="row">
                    <div class="col-md-6">
                        <p><strong>Form:</strong> {{ submission.form_definition.name }}</p>
                        <p><strong>Submitter:</strong> {{ submission.submitter.get_full_name|default:submission.submitter.username }}</p>
                        <p><strong>Email:</strong> {{ submission.submitter.email }}</p>
                    </div>
                    <div class="col-md-6">
                        <p><strong>Submitted:</strong> {{ submission.submitted_at|date:"Y-m-d H:i" }}</p>
                        <p><strong>Status:</strong> {{ submission.get_status_display }}</p>
                        {% if workflow_mode == "staged" and current_stage_number and total_stages %}
                        <p><strong>Current Stage:</strong> {{ current_stage_number }} of {{ total_stages }}</p>
                        {% elif workflow_mode == "sequence" and current_step_number and total_steps %}
                        <p><strong>Current Step:</strong> {{ current_step_number }} of {{ total_steps }}</p>
                        {% endif %}
                    </div>
                </div>
            </div>
        </div>

        {% if has_approval_step_fields and approval_step_form %}
        <!-- Submission Data Section (Read-only) -->
        <div class="card mb-4">
            <div class="card-header bg-secondary text-white">
                <h5 class="mb-0"><i class="bi bi-file-text"></i> Submission Data</h5>
            </div>
            <div class="card-body">
                <table class="table table-bordered table-sm">
                    {% for key, value in form_data.items %}
                        {% if key not in approval_field_names %}
                        <tr>
                            <th style="width: 30%;">{{ key|title }}</th>
                            <td>
                                {% if value.url %}
                                    {% if value.content_type and 'image' in value.content_type %}
                                        <img src="{{ value.url }}" alt="{{ value.filename }}" class="img-fluid" style="max-width: 200px; max-height: 200px;">
                                    {% endif %}
                                    <a href="{{ value.url }}" target="_blank" class="btn btn-sm btn-outline-primary">
                                        <i class="bi bi-download"></i> {{ value.filename }}
                                    </a>
                                {% elif value.path %}
                                    <span class="text-muted">{{ value.filename }}</span>
                                {% else %}
                                    {{ value }}
                                {% endif %}
                            </td>
                        </tr>
                        {% endif %}
                    {% endfor %}
                </table>
            </div>
        </div>

        <!-- Completed Approval Steps (show previous approvals) -->
        {% for step in approval_steps %}
            {% if step.is_completed %}
            <div class="card mb-4 border-success">
                <div class="card-header bg-success text-white">
                    <h5 class="mb-0"><i class="bi bi-check-circle"></i> Step {{ step.number }}: {{ step.group_name }}
                        <span class="badge bg-light text-success float-end">Completed</span>
                    </h5>
                </div>
                <div class="card-body">
                    <table class="table table-bordered table-sm mb-0">
                        {% for field_info in step.fields %}
                            {% with field_name=field_info.field_name %}
                                {% if field_name in form_data %}
                                <tr>
                                    <th style="width: 30%;">{{ field_info.field_label }}</th>
                                    <td>{{ form_data|get_item:field_name }}</td>
                                </tr>
                                {% endif %}
                            {% endwith %}
                        {% empty %}
                            <tr><td colspan="2" class="text-muted">No fields recorded for this step.</td></tr>
                        {% endfor %}
                    </table>
                </div>
            </div>
            {% endif %}
        {% endfor %}

        <!-- Approval Form with Step Fields -->
        <form method="post" data-loading-message="Processing your decision...">
            {% csrf_token %}

            <!-- Current Step Fields Section with Decision inline -->
            <div class="card mb-4 border-primary">
                <div class="card-header bg-primary text-white">
                    <h5 class="mb-0"><i class="bi bi-pencil-square"></i> Step {{ current_step_number }}: {{ task.step_name }}
                        <span class="badge bg-light text-primary float-end">Your Action Required</span>
                    </h5>
                </div>
                <div class="card-body">
                    <p class="text-muted mb-4">Please review the submission above and fill in the required fields below.</p>
                    {{ approval_step_form|crispy }}

                    <hr class="my-4">

                    <!-- Decision Section inline -->
                    <h6 class="mb-3"><i class="bi bi-clipboard-check"></i> Your Decision</h6>
                    <div class="mb-3">
                        <label for="comments" class="form-label">Comments (Optional)</label>
                        <textarea class="form-control" id="comments" name="comments" rows="2" placeholder="Add any comments about your decision..."></textarea>
                    </div>
                    <div class="d-grid gap-2 d-md-block">
                        <button type="submit" name="decision" value="approve" class="btn btn-success btn-lg">
                            <i class="bi bi-check-circle"></i> Approve
                        </button>
                        <button type="submit" name="decision" value="reject" class="btn btn-danger btn-lg">
                            <i class="bi bi-x-circle"></i> Reject
                        </button>
                        <a href="{% url 'forms_workflows:approval_inbox' %}" class="btn btn-outline-secondary btn-lg">
                            <i class="bi bi-arrow-left"></i> Back
                        </a>
                    </div>
                </div>
            </div>
        </form>

        <!-- Future Steps Preview (greyed out) -->
        {% for step in approval_steps %}
            {% if step.number > current_step_number %}
            <div class="card mb-4 border-secondary opacity-50">
                <div class="card-header bg-light text-muted">
                    <h5 class="mb-0"><i class="bi bi-hourglass"></i> Step {{ step.number }}: {{ step.group_name }}
                        <span class="badge bg-secondary float-end">Pending</span>
                    </h5>
                </div>
                <div class="card-body">
                    <p class="text-muted mb-0"><em>This step will be available after all previous steps are approved.</em></p>
                </div>
            </div>
            {% endif %}
        {% endfor %}

        {% else %}
        <!-- Standard Approval (No Step Fields) -->
        <!-- Submission Data -->
        <div class="card mb-4">
            <div class="card-header bg-secondary text-white">
                <h5 class="mb-0"><i class="bi bi-file-text"></i> Submission Data</h5>
            </div>
            <div class="card-body">
                <table class="table table-bordered">
                    {% for key, value in form_data.items %}
                        <tr>
                            <th style="width: 30%;">{{ key|title }}</th>
                            <td>
                                {% if value.url %}
                                    {# File upload with URL - display as image or link #}
                                    {% if value.content_type and 'image' in value.content_type %}
                                        <div class="mb-2">
                                            <img src="{{ value.url }}" alt="{{ value.filename }}" class="img-fluid" style="max-width: 400px; max-height: 400px;">
                                        </div>
                                    {% endif %}
                                    <a href="{{ value.url }}" target="_blank" class="btn btn-sm btn-outline-primary">
                                        <i class="bi bi-download"></i> {{ value.filename }}
                                    </a>
                                    <small class="text-muted ms-2">
                                        {% if value.size %}({{ value.size|filesizeformat }}){% endif %}
                                    </small>
                                {% elif value.path %}
                                    {# File upload with path but no URL #}
                                    <span class="text-muted">{{ value.filename }}</span>
                                    <small class="text-muted ms-2">(File stored but URL unavailable)</small>
                                {% else %}
                                    {{ value }}
                                {% endif %}
                            </td>
                        </tr>
                    {% endfor %}
                </table>
            </div>
        </div>
        <!-- Approval Decision -->
        <div class="card mb-4 border-success">
            <div class="card-header bg-light">
                <h5 class="mb-0"><i class="bi bi-clipboard-check"></i> Your Decision</h5>
            </div>
            <div class="card-body">
                <form method="post" data-loading-message="Processing your decision...">
                    {% csrf_token %}
                    <div class="mb-3">
                        <label for="comments" class="form-label">Comments (Optional)</label>
                        <textarea class="form-control" id="comments" name="comments" rows="3" placeholder="Add any comments about your decision..."></textarea>
                    </div>
                    <div class="d-grid gap-2 d-md-block">
                        <button type="submit" name="decision" value="approve" class="btn btn-success btn-lg">
                            <i class="bi bi-check-circle"></i> Approve
                        </button>
                        <button type="submit" name="decision" value="reject" class="btn btn-danger btn-lg">
                            <i class="bi bi-x-circle"></i> Reject
                        </button>
                        <a href="{% url 'forms_workflows:approval_inbox' %}" class="btn btn-outline-secondary btn-lg">
                            <i class="bi bi-arrow-left"></i> Back
                        </a>
                    </div>
                </form>
            </div>
        </div>
        {% endif %}
    </div>
</div>
{% endblock %}