{% extends "base.html" %}

{% block title %}Conversations - {{ app_name }}{% endblock %}

{% block extra_head %}
<style>
    .list-group-item .flex-grow-1:hover {
        background-color: rgba(0, 123, 255, 0.05);
        border-radius: 0.25rem;
    }
    .list-group-item {
        transition: background-color 0.2s ease;
    }
</style>
{% endblock %}

{% block content %}
<div class="row">
    <div class="col-12">
        <h2 class="mb-4">
            <i class="bi bi-list-ul"></i> Conversations
            <button class="btn btn-primary float-end" onclick="showNewConversationModal()">
                <i class="bi bi-plus-circle-fill"></i> New Conversation
            </button>
        </h2>
    </div>
</div>

<!-- Conversations List -->
<div class="row">
    <div class="col-12">
        <div class="card">
            <div class="card-body" id="conversations-list">
                <div class="text-center">
                    <div class="spinner-border text-primary" role="status">
                        <span class="visually-hidden">Loading...</span>
                    </div>
                    <p class="mt-2">Loading conversations...</p>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Delete Confirmation Modal -->
<div class="modal fade" id="deleteConversationModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title"><i class="bi bi-exclamation-triangle-fill text-danger"></i> Delete Conversation</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p>Are you sure you want to delete this conversation?</p>
                <p class="mb-0"><strong id="delete-conversation-name"></strong></p>
                <p class="text-danger small mt-2">
                    <i class="bi bi-exclamation-circle"></i> This action cannot be undone. All messages and conversation history will be permanently deleted.
                </p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                    Cancel
                </button>
                <button type="button" class="btn btn-danger" id="confirm-delete-btn" onclick="confirmDelete()">
                    <i class="bi bi-trash-fill"></i> Delete Conversation
                </button>
            </div>
        </div>
    </div>
</div>

<!-- New Conversation Modal -->
<div class="modal fade" id="newConversationModal" tabindex="-1">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title"><i class="bi bi-plus-circle-fill"></i> New Conversation</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <form id="new-conversation-form">
                    <div class="mb-3">
                        <label for="conversation-name" class="form-label">Conversation Name</label>
                        <input
                            type="text"
                            class="form-control"
                            id="conversation-name"
                            name="name"
                            placeholder="Enter a name for this conversation"
                            required
                        >
                    </div>

                    <div class="mb-3">
                        <label for="model-select" class="form-label">Model</label>
                        <select class="form-select" id="model-select" name="model_id" required>
                            <option value="">Loading models...</option>
                        </select>
                    </div>

                    <div class="mb-3">
                        <label for="instructions" class="form-label">
                            Instructions / System Prompt
                            <span class="text-muted">(Optional)</span>
                        </label>
                        <textarea
                            class="form-control"
                            id="instructions"
                            name="instructions"
                            rows="4"
                            placeholder="Enter system instructions for this conversation..."
                        ></textarea>
                    </div>

                    <div class="mb-3">
                        <label for="file-attachments" class="form-label">
                            File Attachments
                            <span class="text-muted">(Optional)</span>
                        </label>
                        <input
                            class="form-control"
                            type="file"
                            id="file-attachments"
                            name="files"
                            multiple
                        >
                        <div class="form-text">
                            Supported: txt, md, json, yaml, xml, csv, log, py, js, ts, java, cpp, c, h
                        </div>
                    </div>
                </form>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                    Cancel
                </button>
                <button type="button" class="btn btn-primary" onclick="createConversation()">
                    <i class="bi bi-check-circle-fill"></i> Create Conversation
                </button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_scripts %}
<script>
// Load conversations on page load
window.addEventListener('load', () => {
    loadConversations();
});

// Load conversations
async function loadConversations() {
    try {
        const response = await fetch('/api/conversations');
        const conversations = await response.json();

        if (conversations.length === 0) {
            document.getElementById('conversations-list').innerHTML = `
                <div class="text-center text-muted">
                    <i class="bi bi-inbox" style="font-size: 3rem;"></i>
                    <p class="mt-3">No conversations yet</p>
                    <button class="btn btn-primary" onclick="showNewConversationModal()">
                        <i class="bi bi-plus-circle-fill"></i> Create Your First Conversation
                    </button>
                </div>
            `;
            return;
        }

        let html = '<div class="list-group">';
        conversations.forEach(conv => {
            const createdDate = new Date(conv.created_at).toLocaleString();
            const lastMessageDate = conv.last_message_at ?
                new Date(conv.last_message_at).toLocaleString() :
                'No messages yet';

            html += `
                <div class="list-group-item">
                    <div class="d-flex w-100 justify-content-between align-items-start">
                        <div class="flex-grow-1" style="cursor: pointer;" onclick="window.location.href='/chat/${conv.id}'">
                            <h6 class="mb-1">
                                <i class="bi bi-chat-dots"></i> ${conv.name}
                            </h6>
                            <p class="mb-1 small">
                                <strong>Model:</strong> <code>${conv.model_id}</code>
                            </p>
                            <small class="text-muted">
                                Created: ${createdDate} | Last message: ${lastMessageDate}
                            </small>
                        </div>
                        <div class="d-flex flex-column align-items-end ms-3">
                            <small class="text-muted mb-2">${conv.message_count} messages</small>
                            <button class="btn btn-sm btn-outline-danger" onclick="deleteConversation(${conv.id}, '${conv.name.replace(/'/g, "\\'")}')">
                                <i class="bi bi-trash"></i> Delete
                            </button>
                        </div>
                    </div>
                </div>
            `;
        });
        html += '</div>';

        document.getElementById('conversations-list').innerHTML = html;

    } catch (error) {
        document.getElementById('conversations-list').innerHTML = `
            <div class="alert alert-danger">
                <i class="bi bi-exclamation-triangle-fill"></i> Failed to load conversations
            </div>
        `;
    }
}

// Show new conversation modal
async function showNewConversationModal() {
    // Load available models
    await loadModels();

    const modal = new bootstrap.Modal(document.getElementById('newConversationModal'));
    modal.show();
}

// Load available models
async function loadModels() {
    try {
        const response = await fetch('/api/models');
        const models = await response.json();

        const select = document.getElementById('model-select');
        select.innerHTML = '<option value="">Select a model...</option>';

        models.forEach(model => {
            const option = document.createElement('option');
            option.value = model.id;

            // Show service provider and optionally model maker
            let displayText = model.name;
            if (model.model_maker && model.provider !== model.model_maker) {
                // Show both: "Model Name [Model Maker via Service Provider]"
                displayText += ` [${model.model_maker} via ${model.provider}]`;
            } else {
                // Show service only: "Model Name [Service Provider]"
                displayText += ` [${model.provider}]`;
            }

            option.textContent = displayText;
            select.appendChild(option);
        });

    } catch (error) {
        document.getElementById('model-select').innerHTML = `
            <option value="">Failed to load models</option>
        `;
    }
}

// Create conversation
async function createConversation() {
    const form = document.getElementById('new-conversation-form');
    const formData = new FormData(form);

    try {
        // Disable button
        event.target.disabled = true;
        event.target.innerHTML = '<i class="bi bi-hourglass-split"></i> Creating...';

        const response = await fetch('/api/conversations', {
            method: 'POST',
            body: formData
        });

        if (!response.ok) {
            throw new Error('Failed to create conversation');
        }

        const conversation = await response.json();

        // Close modal
        bootstrap.Modal.getInstance(document.getElementById('newConversationModal')).hide();

        // Redirect to chat
        window.location.href = `/chat/${conversation.id}`;

    } catch (error) {
        alert('Failed to create conversation: ' + error.message);

        // Re-enable button
        event.target.disabled = false;
        event.target.innerHTML = '<i class="bi bi-check-circle-fill"></i> Create Conversation';
    }
}

// Global variable to store conversation to delete
let conversationToDelete = null;

// Show delete confirmation modal
function deleteConversation(conversationId, conversationName) {
    conversationToDelete = conversationId;
    document.getElementById('delete-conversation-name').textContent = conversationName;

    const modal = new bootstrap.Modal(document.getElementById('deleteConversationModal'));
    modal.show();
}

// Confirm and execute deletion
async function confirmDelete() {
    if (!conversationToDelete) {
        return;
    }

    const deleteBtn = document.getElementById('confirm-delete-btn');

    try {
        // Disable button
        deleteBtn.disabled = true;
        deleteBtn.innerHTML = '<i class="bi bi-hourglass-split"></i> Deleting...';

        const response = await fetch(`/api/conversations/${conversationToDelete}`, {
            method: 'DELETE'
        });

        if (!response.ok) {
            throw new Error('Failed to delete conversation');
        }

        // Close modal
        bootstrap.Modal.getInstance(document.getElementById('deleteConversationModal')).hide();

        // Reset button state
        deleteBtn.disabled = false;
        deleteBtn.innerHTML = '<i class="bi bi-trash-fill"></i> Delete Conversation';

        // Clear conversation to delete
        conversationToDelete = null;

        // Reload conversations list
        await loadConversations();

    } catch (error) {
        alert('Failed to delete conversation: ' + error.message);

        // Re-enable button
        deleteBtn.disabled = false;
        deleteBtn.innerHTML = '<i class="bi bi-trash-fill"></i> Delete Conversation';
    }
}
</script>
{% endblock %}