import gradio as gr
import json
from datetime import datetime
from patient_registration import register_patient
from test_selection import select_tests, get_tests_by_category
from billing import fetch_billing

# Load data
def load_data():
    try:
        with open("data.json", "r") as file:
            data = json.load(file)
            return data.get("patients", {}), data.get("last_sequence", {"year": None, "month": None, "number": 0})
    except FileNotFoundError:
        return {}, {"year": None, "month": 0, "number": 0}

# Save data
def save_data(patients, last_sequence):
    with open("data.json", "w") as file:
        json.dump({"patients": patients, "last_sequence": last_sequence}, file)

# Generate patient ID
def generate_patient_id(phone, last_sequence):
    today = datetime.now()
    current_year = today.year
    current_month = today.month
    
    if last_sequence["year"] != current_year or last_sequence["month"] != current_month:
        last_sequence["year"] = current_year
        last_sequence["month"] = current_month
        last_sequence["number"] = 1
    else:
        last_sequence["number"] += 1
    
    patient_id = f"{current_year}{current_month:02d}{last_sequence['number']:05d}"
    return patient_id

# Patient Registration Tab
def registration_interface(name, father_name, age, gender, phone, address):
    patients, last_sequence = load_data()
    patient_id = generate_patient_id(phone, last_sequence)
    
    patients[patient_id] = {
        "name": name,
        "father_name": father_name,
        "age": age,
        "gender": gender,
        "phone": phone,
        "address": address,
        "tests": [],
        "total_cost": 0
    }
    
    save_data(patients, last_sequence)
    return f"Patient Registered. Patient ID: {patient_id}", patient_id

# Tests Selection Tab
def test_interface(categories):
    available_tests = get_tests_by_category(categories)
    return gr.update(choices=available_tests)

def confirm_tests_interface(patient_id, selected_tests):
    patients, last_sequence = load_data()
    response = select_tests(patient_id, selected_tests, patients)
    save_data(patients, last_sequence)
    return response

# Billing Tab
def billing_interface(patient_id):
    patients, _ = load_data()
    if patient_id in patients:
        billing_info = fetch_billing(patient_id, patients)
        return billing_info
    else:
        return "Invalid Patient ID. Please check the ID."

# Custom CSS styling
custom_css = """
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

/* General Page Style */
body {
    font-family: 'Poppins', Arial, sans-serif;
    background: linear-gradient(135deg, #4a90e2, #003c7c);
    color: #ffffff;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Header Styling */
#header {
    color: #7fffd4;
    text-align: center;
    font-weight: 700;
    font-size: 2.5em;
    margin-bottom: 25px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

#header:hover {
    color: #32cd32;
    transform: scale(1.05);
}

/* Container Style */
.gradio-container {
    max-width: 850px;
    margin: 30px auto;
    padding: 40px;
    background: rgba(0, 0, 50, 0.95);
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    color: #e0f7fa;
}

/* Form Field Styles */
input, select, textarea {
    max-width: 700px;
    border: 1px solid #7fffd4;
    border-radius: 8px;
    padding: 10px 12px;
    background: rgba(245, 245, 245, 0.95);
    color: #2d2d2d;
    font-size: 15px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    box-shadow: 0px 3px 5px rgba(0, 0, 0, 0.15);
}

/* Button Style */
.gr-button {
    color: #ffffff;
    background: linear-gradient(135deg, #1de9b6, #007aff);
    border: none;
    border-radius: 12px;
    padding: 12px 30px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    transition: 0.3s ease;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.gr-button:hover {
    background: linear-gradient(135deg, #005cbf, #00bfa5);
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* Tab Styling */
.nav-tabs {
    display: flex;
    justify-content: space-around;
    background-color: #001848;
    border-bottom: 1px solid #ffffff;
    padding: 12px;
    gap: 20px;
}

.nav-tabs .nav-item {
    font-size: 1.2em;
    color: #7fffd4;
    padding: 10px 18px;
    cursor: pointer;
    font-weight: 500;
    border: 2px solid transparent;
    border-radius: 8px;
    transition: color 0.3s, border-color 0.3s;
}

.nav-tabs .nav-item:hover {
    color: #00ffcc;
    background-color: rgba(0, 255, 204, 0.1);
}

.nav-tabs .nav-item.active {
    color: #ff8c00;
    border-bottom: 3px solid #ff8c00;
    font-weight: 700;
    background-color: rgba(255, 140, 0, 0.1);
    padding: 8px 16px;
}

/* Label Styling */
label {
    font-size: 1em;
    font-weight: 600;
    color: #7fffd4;
    margin-bottom: 5px;
}

/* Output Text Styling */
#test_output, #billing_output {
    color: #ffffff !important;
    background-color: rgba(0, 0, 50, 0.8) !important;
    padding: 10px;
    border-radius: 5px;
    font-weight: bold;
    text-align: left;
}

/* Responsive Design for Mobile Devices */
@media (max-width: 768px) {
    .gradio-container {
        padding: 20px;
    }
    
    #header {
        font-size: 2em;
    }

    input, textarea, select, .gr-button {
        font-size: 1em;
        padding: 10px;
    }
}
"""

# Gradio Interface
with gr.Blocks(css=custom_css) as app:
    gr.Markdown("<h1 style='text-align: center;'>👩🏻‍🔬丂卂ㄒ卄Ҝ尺ㄩㄒ卄卂 ㄥ丨爪丂🔬</h1>", elem_id="header")

    with gr.Tab("Patient Registration"):
        gr.Markdown("<h2>Register a New Patient</h2>")

        with gr.Row():
            name = gr.Textbox(label="Patient Name", placeholder="Enter patient's full name", elem_id="name_field")
            father_name = gr.Textbox(label="Father/Husband's Name", placeholder="Enter father/husband's full name", elem_id="father_name_field")

        with gr.Row():
            age = gr.Number(label="Age", value=None, minimum=0, maximum=120, elem_id="age_field")
            gender = gr.Radio(
                choices=["Male", "Female", "Other"],
                label="Gender",
                elem_id="gender_field"
            )

        with gr.Row():
            phone = gr.Textbox(label="Phone Number", placeholder="Enter a valid 10-digit phone number", elem_id="phone_field")
            address = gr.Textbox(label="Address", placeholder="Enter full address", lines=2, elem_id="address_field")

        register_button = gr.Button("Register Patient", elem_id="register_button")
        registration_output = gr.Markdown(elem_id="registration_output")
        patient_id_display = gr.Textbox(label="Patient ID", interactive=False, elem_id="patient_id_display")  # Display Patient ID as non-editable text
        
        # Copy Patient ID functionality with JavaScript
        gr.Markdown("""
        <button onclick="copyPatientID()" class="gr-button" style="margin-top: 10px;">Copy Patient ID</button>
        <script>
            function copyPatientID() {
                const patientID = document.querySelector('#patient_id_display input').value;
                navigator.clipboard.writeText(patientID).then(() => {
                    alert('Patient ID copied to clipboard');
                });
            }
        </script>
        """)

        # Callback for registration and display Patient ID
        register_button.click(registration_interface, [name, father_name, age, gender, phone, address], [registration_output, patient_id_display])

    with gr.Tab("Tests"):
        gr.Markdown("<h2>Select Tests for the Patient</h2>")
        patient_id_test = gr.Textbox(label="Patient ID", placeholder="Enter Patient ID")
        paste_button_test = gr.Button("Paste Patient ID")  # Paste button to auto-fill Patient ID
        categories = gr.CheckboxGroup(
            ["Haematology", "Clinical Pathology", "Biochemistry", "Microbiology", "Specific Diseases", "Serology", "Radiology", "Other Diagnostic Tests"],
            label="Select Test Categories"
        )
        available_tests = gr.CheckboxGroup(label="Available Tests")
        confirm_button = gr.Button("Confirm Selected Tests")

        test_output = gr.Markdown(label="Test Selection Output", elem_id="test_output")

        categories.change(test_interface, inputs=categories, outputs=available_tests)
        confirm_button.click(confirm_tests_interface, [patient_id_test, available_tests], test_output)

        # Paste button action for Tests Tab
        paste_button_test.click(lambda x: x, patient_id_display, patient_id_test)

    with gr.Tab("Billing"):
        gr.Markdown("<h2>Billing Information</h2>")
        patient_id_bill = gr.Textbox(label="Patient ID", placeholder="Enter Patient ID for Billing")
        paste_button_bill = gr.Button("Paste Patient ID")  # Paste button for Billing
        fetch_button = gr.Button("Fetch Billing Details")
        
        billing_output = gr.Markdown(label="Billing Information", elem_id="billing_output")
        
        fetch_button.click(billing_interface, [patient_id_bill], billing_output)
        
        # Paste button action for Billing Tab
        paste_button_bill.click(lambda x: x, patient_id_display, patient_id_bill)

app.launch()