#!/usr/bin/env python3
"""
Simple example showing how to use selectui as a library.
"""

import os
import sys

sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'src'))

from selectui import SelectUI


def select_programming_language():
    """Let user select a programming language."""

    languages = [
        {
            "title": "Python",
            "subtitle": "High-level, interpreted language",
            "extension": ".py",
            "year": "1991"
        },
        {
            "title": "JavaScript",
            "subtitle": "Dynamic web programming language",
            "extension": ".js",
            "year": "1995"
        },
        {
            "title": "Rust",
            "subtitle": "Systems programming language",
            "extension": ".rs",
            "year": "2010"
        },
        {
            "title": "Go",
            "subtitle": "Concurrent programming language",
            "extension": ".go",
            "year": "2009"
        },
        {
            "title": "TypeScript",
            "subtitle": "Typed superset of JavaScript",
            "extension": ".ts",
            "year": "2012"
        },
    ]

    app = SelectUI(
        items=languages,
        oneshot=True,
        title_key="title",
        subtitle_key="subtitle",
        info_key="year"
    )

    app.run()

    return app.selected_item


def select_from_simple_list():
    """Select from a simple list of items."""

    items = [
        {"title": "Option A"},
        {"title": "Option B"},
        {"title": "Option C"},
        {"title": "Option D"},
    ]

    app = SelectUI(
        items=items,
        oneshot=True
    )

    app.run()

    return app.selected_item


def select_file():
    """Select a file from current directory."""
    import os

    files = []
    for filename in os.listdir('.'):
        if os.path.isfile(filename):
            size = os.path.getsize(filename)
            files.append({
                "title": filename,
                "subtitle": f"{size} bytes",
                "path": os.path.abspath(filename)
            })

    if not files:
        print("No files found in current directory", file=sys.stderr)
        return None

    app = SelectUI(
        items=files,
        oneshot=True,
        title_key="title",
        subtitle_key="subtitle"
    )

    app.run()

    return app.selected_item


if __name__ == "__main__":
    print("SelectUI Library Example\n", file=sys.stderr)
    print("Choose an example:", file=sys.stderr)
    print("1. Select a programming language", file=sys.stderr)
    print("2. Select from simple list", file=sys.stderr)
    print("3. Select a file", file=sys.stderr)

    choice = input("\nEnter choice (1-3): ")

    result = None
    if choice == "1":
        result = select_programming_language()
    elif choice == "2":
        result = select_from_simple_list()
    elif choice == "3":
        result = select_file()
    else:
        print("Invalid choice", file=sys.stderr)
        sys.exit(1)

    if result:
        print("\nYou selected:", file=sys.stderr)
        import json
        print(json.dumps(result, indent=2), file=sys.stderr)
    else:
        print("\nNo selection made", file=sys.stderr)