"""
deploy/i18n.py — 国际化字符串 (English default)
"""
import os

LANG = os.environ.get("BREADBUDDY_LANG", "en")

STRINGS = {
    "app_title": {"en": "BreadBuddy", "zh": "BreadBuddy"},
    "app_subtitle": {
        "en": "AI Bread Baking Assistant — Take a photo or describe your bread problem",
        "zh": "AI 面包烘焙助手 — 拍张照片或描述面包问题"
    },
    "hero_text": {
        "en": "Snap a photo, let me check your bread",
        "zh": "拍张照片，让我看看你的面包怎么了"
    },
    "photo_label": {
        "en": "📷 Tap to take a photo or upload",
        "zh": "📷 点击拍照或上传照片"
    },
    "desc_placeholder": {
        "en": "Describe your bread problem... (optional)",
        "zh": "描述一下你的面包问题...（可选）"
    },
    "desc_value": {
        "en": "Bread collapsed, inside is sticky and wet",
        "zh": "面包塌陷，内部湿粘"
    },
    "temp_preset_label": {
        "en": "Environment Presets",
        "zh": "环境温湿度预设"
    },
    "preset_winter": {"en": "❄️ Winter 5-15°C", "zh": "❄️ 冬天 5-15°C"},
    "preset_spring": {"en": "🌸 Spring 15-25°C", "zh": "🌸 春天 15-25°C"},
    "preset_summer": {"en": "☀️ Summer 25-35°C", "zh": "☀️ 夏天 25-35°C"},
    "preset_custom": {"en": "⚙️ Custom", "zh": "⚙️ 自定义"},
    "btn_diagnose": {"en": "Start Diagnosis", "zh": "开始诊断"},
    "btn_rediagnose": {"en": "← Restart", "zh": "← 重新诊断"},
    "btn_followup_placeholder": {
        "en": "Ask a follow-up... e.g. Can you explain the first cause?",
        "zh": "继续追问... 例如：能详细说一下第二个原因吗？"
    },
    "loading_connecting": {
        "en": "Connecting to AI...",
        "zh": "正在连接 AI 诊断师..."
    },
    "loading_first_time": {
        "en": "First time may take 30-60s to warm up the model",
        "zh": "首次诊断需要约 30-60 秒预热模型"
    },
    "thinking": {"en": "Analyzing...", "zh": "正在思考..."},
    "thinking_bread": {"en": "🧠 Analyzing bread photo...", "zh": "🔍 正在分析面包照片..."},
    "thinking_text": {"en": "🧠 Analyzing your question...", "zh": "🧠 正在分析面包问题..."},
    "empty_hint_title": {
        "en": "Start Diagnosing Your Bread",
        "zh": "开始诊断你的面包"
    },
    "empty_hint_subtitle": {
        "en": "Upload a photo or describe the problem, then click \"Start Diagnosis\"",
        "zh": "上传照片或描述问题，点击「开始诊断」"
    },
    "speed_prefix": {"en": "⏱️", "zh": "⏱️"},
    "speed_thinking": {"en": "⏱️ thinking...", "zh": "⏱️ 思考中..."},
    "api_error_prefix": {"en": "❌ API error: ", "zh": "❌ API error: "},
    "network_error_prefix": {"en": "❌ Network error: ", "zh": "❌ 网络错误: "},
    "api_url_not_configured": {
        "en": "❌ API URL not configured",
        "zh": "❌ API URL 未配置"
    },
    "timeout_error": {"en": "❌ Response timeout, try again", "zh": "❌ 推理服务响应超时，请稍后重试"},
    "unavailable_error": {"en": "❌ Service unavailable, try again", "zh": "❌ 推理服务暂时不可用，请稍后重试"},
    "accordion_label": {
        "en": "🧠 Model Thinking (optional)",
        "zh": "🧠 模型思考过程（可选）"
    },
    "followup_banner_prefix": {
        "en": "🧠 Follow-up context: ",
        "zh": "🧠 追问上下文："
    },
    "footer_line1": {
        "en": "\u00a9 2026 Rockstone Games. All rights reserved. https://github.com/the-rockstone-games",
        "zh": "\u00a9 2026 Rockstone Games. All rights reserved. https://github.com/the-rockstone-games"
    },
    "footer_line2": {
        "en": "",
        "zh": ""
    },
    "preset_q_detail": {"en": "🔍 Details on cause 1", "zh": "🔍 详细原因"},
    "preset_q_ferment": {"en": "⏱️ Fermentation tips", "zh": "⏱️ 发酵调整"},
    "preset_q_recipe": {"en": "📖 Simple recipe", "zh": "📖 简易配方"},
    "preset_q_detail_prompt": {
        "en": "Can you explain the first cause in detail?",
        "zh": "能详细说一下第一个原因吗？"
    },
    "preset_q_ferment_prompt": {
        "en": "How should I adjust fermentation time?",
        "zh": "我该怎么调整发酵时间？"
    },
    "preset_q_recipe_prompt": {
        "en": "Is there a simpler recipe?",
        "zh": "有没有更简单的配方？"
    },
    "temperature_label": {"en": "Temperature", "zh": "温度"},
    "humidity_label": {"en": "Humidity", "zh": "湿度"},
    "lang_toggle_en": {"en": "中文", "zh": "EN"},
}

# System prompts
DIAGNOSIS_SYSTEM_PROMPT = {
    "en": """You are a bread baking diagnostic assistant. Always respond in English.

Diagnose the bread problem and provide structured output using these exact section headers:

### Possible Causes
1. [Severity] Cause description
### Fixes
1. Fix suggestion
### Recommended Recipes
1. Recipe Name — Description

Severity levels: [Severe], [Moderate], [Mild]""",
    "zh": """### 可能原因
1. 原因
### 修复建议
1. 建议
### 推荐配方
1. 配方名 — 描述""",
}

FOLLOWUP_SYSTEM_SUFFIX = {
    "en": "\nAnswer the follow-up based on the conversation above.",
    "zh": "\n基于以上对话回答追问。",
}

USER_PROMPT_FALLBACK = {
    "en": "Please diagnose this bread photo",
    "zh": "请诊断这张面包照片的问题",
}


def t(key: str) -> str:
    """Get translated string for current language."""
    s = STRINGS.get(key, {})
    return s.get(LANG, s.get("en", key))


def set_lang(lang: str):
    """Switch language."""
    global LANG
    LANG = lang if lang in ("en", "zh") else "en"


def get_system_prompt() -> str:
    return DIAGNOSIS_SYSTEM_PROMPT.get(LANG, DIAGNOSIS_SYSTEM_PROMPT["en"])

def get_followup_suffix() -> str:
    return FOLLOWUP_SYSTEM_SUFFIX.get(LANG, FOLLOWUP_SYSTEM_SUFFIX["en"])

def get_user_fallback() -> str:
    return USER_PROMPT_FALLBACK.get(LANG, USER_PROMPT_FALLBACK["en"])