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import os
import json
import gradio as gr
from openai import OpenAI

# ---- APIキー(SecretsにOPENAI_API_KEYをセット)----
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
if not OPENAI_API_KEY:
    raise RuntimeError("OPENAI_API_KEY is not set. Add it in Settings → Variables and secrets.")

client = OpenAI(api_key=OPENAI_API_KEY)
MODEL = "gpt-4o"  # 必要に応じて gpt-4o-mini などに変更

# ---- iOS等のノッチ/ホームバーに合わせて安全領域を確保(ここが追加)----
SAFEAREA_CSS = """
/* iOS/Androidのノッチ・ホームバー分の余白を動的に確保 */
html, body, #root, .gradio-container {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  /* 画面いっぱいに広げる */
  min-height: 100dvh;
  box-sizing: border-box;
}
"""

def summarize(text: str, length: str = "short") -> str:
    system = (
        "あなたは日英の要約アシスタント。"
        "重要点の抽出、冗長排除、事実の改変の禁止。出力は日本語で。"
        f"長さの目安:{length}"
    )
    resp = client.chat.completions.create(
        model=MODEL,
        messages=[
            {"role": "system", "content": system},
            {"role": "user", "content": text}
        ]
    )
    return resp.choices[0].message.content.strip()

def translate(text: str, target_lang: str = "en", formality: str = "neutral") -> str:
    system = "あなたは一流の翻訳家。意味忠実・自然な文体・用語統一・固有名詞も丁寧に。"
    user = f"次の文を{target_lang}に翻訳。文体:{formality}\n\n{text}"
    resp = client.chat.completions.create(
        model=MODEL,
        messages=[
            {"role": "system", "content": system},
            {"role": "user", "content": user}
        ]
    )
    return resp.choices[0].message.content.strip()

# ---- ここで css=SAFEAREA_CSS を渡す(ここが追加)----
with gr.Blocks(title="Summarize & Translate", css=SAFEAREA_CSS) as demo:
    gr.Markdown("# Summarize & Translate")
    with gr.Tab("Summarize"):
        txt = gr.Textbox(lines=8, label="本文")
        length = gr.Dropdown(["short", "medium", "long"], value="short", label="長さ")
        out = gr.Textbox(label="要約結果")
        btn = gr.Button("要約する")
        btn.click(fn=summarize, inputs=[txt, length], outputs=out)

    with gr.Tab("Translate"):
        txt2 = gr.Textbox(lines=8, label="本文")
        lang = gr.Dropdown(["ja", "en", "zh", "ko", "fr", "de"], value="en", label="言語")
        lform = gr.Dropdown(["neutral", "formal", "casual"], value="neutral", label="文体")
        out2 = gr.Textbox(label="翻訳結果")
        btn2 = gr.Button("翻訳する")
        btn2.click(fn=translate, inputs=[txt2, lang, lform], outputs=out2)

if __name__ == "__main__":
    demo.launch()