"""
Step 1: API Configuration
"""
import streamlit as st
from core.workflow import set_openai_api_key
from services.key_manager import get_key_manager


def render_step1():
    """Render Step 1: Input API Keys"""
    st.header("Step 1: Input Your API Keys")
    st.markdown("Configure API keys for the models you want to use for evaluation. (Optional)")

    st.markdown("### 🔑 OpenAI Configuration")
    st.session_state.openai_key_input = st.text_input(
        "OpenAI API Key",
        type="password",
        value=st.session_state.get("openai_key_input", ""),
        help="Enter your OpenAI API key for GPT model evaluation (optional)",
    )

    if st.session_state.openai_key_input:
        if st.button("Test OpenAI Connection", key="test_openai"):
            with st.spinner("Testing connection..."):
                try:
                    from providers.openai_client import OpenAIClient

                    client = OpenAIClient(st.session_state.openai_key_input)
                    # Simple test - check if key is valid format
                    if st.session_state.openai_key_input.startswith("sk-"):
                        st.success("✅ OpenAI API key format is valid!")
                        st.session_state.openai_configured = True
                        st.session_state.openai_key = (
                            st.session_state.openai_key_input
                        )
                        # Save to KeyManager
                        key_manager = get_key_manager()
                        key_manager.set_key("openai", st.session_state.openai_key)
                        set_openai_api_key(
                            st.session_state.openai_key
                        )  # <-- initialize core

                    else:
                        st.error("❌ Invalid OpenAI API key format")
                        st.session_state.openai_configured = False
                except Exception as e:
                    st.error(f"❌ Error: {str(e)}")
                    st.session_state.openai_configured = False

    if st.session_state.get("openai_configured", False):
        st.success("✅ OpenAI is configured and ready!")

    # Validation
    st.divider()

    if st.session_state.get("openai_configured", False):
        st.success("✅ API configured! You can proceed.")
    else:
        st.info("💡 You can proceed without configuring an API key, or configure OpenAI above.")

    if st.button("Next: Upload File →", type="primary", use_container_width=True):
        st.session_state.step = 2
        st.rerun()