# =============================================
# 被其他脚本 source，从 system.yaml 导出环境变量
# =============================================
# 用法：source scripts/_load_config.sh
# =============================================

_load_yaml_value() {
    # 从 system.yaml 读取一个值
    # 用法: _load_yaml_value "servers.overseas_host"
    local key_path="$1"
    local default="${2:-}"

    if command -v python3 &>/dev/null; then
        local value
        value=$(python3 -c "
import yaml, sys
try:
    with open('configs/system.yaml') as f:
        cfg = yaml.safe_load(f)
    parts = '${key_path}'.split('.')
    val = cfg
    for p in parts:
        val = val[p]
    print(val)
except Exception:
    sys.exit(1)
" 2>/dev/null) && echo "$value" && return
    fi
    echo "$default"
}

# ── 导出脚本需要的变量 ──────────────────────────
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
CONFIG_DIR="$SCRIPT_DIR/../configs"

if [ -f "$CONFIG_DIR/system.yaml" ]; then
    export CRAWL_PROJECT_DIR="$(_load_yaml_value "servers.overseas_path" "/opt/intlgrab")"
    export LOCAL_PROJECT_DIR="$(_load_yaml_value "servers.domestic_path" "/home/pi/intlnews")"
    export OVERSEAS_HOST="$(_load_yaml_value "servers.overseas_host" "")"
    export SYNC_SENTINEL="$(_load_yaml_value "sync.sentinel" "/tmp/en_news_sync_done")"
    export SYNC_PACK_DIR="$(_load_yaml_value "sync.pack_dir" "/tmp")"
else
    echo "WARNING: configs/system.yaml not found, using defaults"
    export CRAWL_PROJECT_DIR="/opt/intlgrab"
    export LOCAL_PROJECT_DIR="/home/pi/intlnews"
fi