#!/bin/bash
# Download Noto Sans fonts for multilingual PDF generation
# Supports: CJK (Chinese, Japanese, Korean), Thai, Vietnamese, Russian, etc.

set -e

FONT_DIR="backend/fonts"

echo "🔤 Downloading fonts for multilingual PDF generation..."

# Create font directory
mkdir -p "$FONT_DIR"

# Function to download font
download_font() {
    local url="$1"
    local file="$2"
    local desc="$3"

    if [ -f "$FONT_DIR/$file" ]; then
        echo "✓ $desc already exists"
    else
        echo "Downloading $desc..."
        if wget -q "$url" -O "$FONT_DIR/$file"; then
            SIZE=$(du -h "$FONT_DIR/$file" | cut -f1)
            echo "✓ $desc downloaded: $SIZE"
        else
            echo "✗ Failed to download $desc"
            return 1
        fi
    fi
}

# NotoSansSC - Chinese (Simplified), also covers Japanese and basic CJK
download_font \
    "https://github.com/notofonts/noto-cjk/raw/main/Sans/Variable/TTF/Subset/NotoSansSC-VF.ttf" \
    "NotoSansSC-Regular.ttf" \
    "Noto Sans SC (Chinese/Japanese)"

# NotoSansKR - Korean
download_font \
    "https://github.com/notofonts/noto-cjk/raw/main/Sans/Variable/TTF/Subset/NotoSansKR-VF.ttf" \
    "NotoSansKR-Regular.ttf" \
    "Noto Sans KR (Korean)"

# NotoSansThai - Thai
download_font \
    "https://github.com/notofonts/noto-fonts/raw/main/hinted/ttf/NotoSansThai/NotoSansThai-Regular.ttf" \
    "NotoSansThai-Regular.ttf" \
    "Noto Sans Thai"

echo ""
echo "✅ Font setup complete!"
echo "Supported languages: Chinese (zh-CN/zh-TW), Japanese (ja), Korean (ko),"
echo "                     Thai (th), Russian (ru), Vietnamese (vi),"
echo "                     and all Latin-based languages (en, de, fr, es, etc.)"