The task is to create a Python script that generates a high-level design for a GPON FTTH network based on user input. The script will take the name of a specific area as input, retrieve geographic and road network data autonomously (using libraries like osmnx), and then generate a KML file with all the necessary details for planning a GPON FTTH network. The process will be displayed in real time to the user.

Here’s a step-by-step breakdown of the design:

1. User Input
The script should prompt the user to input the name of the area to be designed (e.g., a city or a specific location).
Use libraries like geopy or osmnx to geocode the area and retrieve boundary data.
Action:

Prompt the user: "Please enter the name of the area you would like to design the network for."
Geocode the area to get boundary and location coordinates.
2. Data Retrieval (Autonomous)
Use osmnx (which does not require an API key) to retrieve geographic data for the selected area. This should include:
Road networks: Used for determining fiber routes.
Buildings or premises: For determining potential customer locations (ONTs).
Use the boundary coordinates to download data like streets, buildings, and infrastructure.
Action:

Download road networks, building footprints, and other relevant geospatial data for the area using osmnx.
Display progress as each dataset is retrieved.
3. Network Design Algorithm
OLT Placement: Place the Optical Line Terminal (OLT) at a strategic central location within the area, ensuring optimal reach to all points.
Splitter Placement:
Place primary splitters (1:4 or 1:16) at critical points within the area, using road junctions or central points as reference.
Use secondary splitters as necessary, closer to customer premises, to support GPON split ratios up to 1:64.
Fiber Routes:
Create feeder routes from the OLT to the primary splitters.
Create distribution routes from the splitters to the customer locations (buildings/premises).
Drop cables from the distribution network to individual buildings.
Signal Budget: Automatically calculate the optical power budget based on the distance between OLT, splitters, and customer ONTs.
Action:

Display the placement of the OLT and splitters.
Draw and label fiber routes from OLT to splitters and from splitters to buildings.
Show progress with real-time status updates for each step of the design.
4. Hardware Placement
Add all the necessary hardware components into the design:
Street cabinets to house splitters.
Manholes for underground fiber splicing and routing.
Poles for aerial fiber installation (where applicable).
ONTs at customer premises.
Action:

Automatically place hardware components (cabinets, manholes, poles, ONTs) in the KML output, displaying each step in real time.
5. Material and Equipment Naming
The script should assign realistic names to materials and equipment, such as:
Fiber optic cables (e.g., 144F feeder, 8F distribution).
Splitters (1:4, 1:16).
Cabinets, manholes, and poles.
ONTs at each customer location.
Action:

Display the naming of all components and materials used in the design.
6. KML Output Generation
Create a KML file that contains:
Lines representing the fiber optic network (feeder, distribution, and drop cables).
Points for OLT, splitters, cabinets, manholes, and ONTs.
Attributes: Include all necessary details (cable types, splitter ratios, distances, etc.) in the KML file for visualization and planning.
The KML should also contain different layers for:
Feeder network.
Distribution network.
Customer premises.
Hardware components (splitters, cabinets, poles, etc.).
Action:

Save the KML file and display a real-time message indicating progress ("Generating KML file...") and final output ("KML file created successfully.").
7. Real-Time Display and Debugging
Throughout the process, display all steps in real time on the console. Include verbose information about:
What data is being retrieved.
What hardware is being placed.
The current status of KML generation.
Provide real-time feedback, status updates, and debugging information to ensure transparency in the design process.
Action:

Continuously output the current stage to the user, ensuring that every step is shown as it happens.
8. Error Handling
If any part of the data retrieval or design fails (e.g., area not found, no data for that location), display an appropriate error message.
Handle exceptions, such as internet connectivity issues or missing data, and prompt the user to retry.
Action:

Catch any potential errors during data retrieval or processing, display informative error messages, and allow the user to retry or adjust input.
9. Additional Considerations for Customization
Allow the user to specify split ratios (1:4, 1:8, 1:16) based on design requirements.
Allow the user to select overhead vs. underground deployment where applicable.
Ensure that the design is flexible enough to adapt to different service areas, from urban to rural locations.
Action:

Implement options for customization in the user input and display the effect of these options in real time as the design is generated.
Expected Output:
KML file: A file named after the selected area, containing the GPON FTTH network design (with all fiber lines, splitters, hardware, and premises locations).
Real-time updates: Continuous feedback and progress updates displayed to the user.
Error handling: Friendly error messages if something goes wrong.
By following these steps, the script will autonomously generate a high-level GPON FTTH design for any user-defined area, leveraging free data sources and tools like osmnx and producing a fully-detailed KML file output.