proxyfix

#!/usr/bin/env bash
# proxyfix — unified Clash proxy detect & fix tool
set -euo pipefail

# Resolve symlink: BASH_SOURCE[0] may be ~/.local/bin/proxyfix
_src="${BASH_SOURCE[0]}"
while [[ -L $_src ]]; do
  _dir=$(cd "$(dirname "$_src")" && pwd)
  _src=$(readlink "$_src")
  [[ $_src != /* ]] && _src="${_dir}/${_src}"
done
PROXYFIX_ROOT=$(cd "$(dirname "$_src")" && pwd)
export PROXYFIX_ROOT

usage() {
  cat <<EOF
Usage: proxyfix [command] [options]

Commands:
  fix              Detect and repair proxy issues (default)
  detect           Check only; exit 1 if broken
  status           Human-readable status report
  test             Connectivity smoke tests
  download URL     Smart download (direct-first for large CDN files)

Options:
  --quiet          Minimal output (for systemd/hooks)
  --app NAME       Limit fix to: all|clash|cursor|steam|shell|pacman|discord

Examples:
  proxyfix fix
  proxyfix detect
  proxyfix fix --app steam
  proxyfix download https://example.com/file.bin
EOF
}

CMD="${1:-fix}"
shift || true

QUIET=""
APP_FILTER="all"

while [[ $# -gt 0 ]]; do
  case "$1" in
    --quiet|-q) QUIET=1; export QUIET ;;
    --app) APP_FILTER="${2:?}"; shift ;;
    -h|--help) usage; exit 0 ;;
    *) break ;;
  esac
  shift
done

export APP_FILTER

# shellcheck source=lib/common.sh
source "${PROXYFIX_ROOT}/lib/common.sh"

case "$CMD" in
  fix|"")
    bash "${PROXYFIX_ROOT}/lib/fix.sh"
    ;;
  detect)
    bash "${PROXYFIX_ROOT}/lib/detect.sh"
    ;;
  status)
    bash "${PROXYFIX_ROOT}/lib/detect.sh" || true
    printf '\n--- Shell ---\n'
    if [[ -f $PROXY_SH ]]; then
      # shellcheck source=/dev/null
      source "$PROXY_SH"
      proxy_status 2>/dev/null || true
    fi
    printf '\nPort: %s\n' "$(mixed_port)"
    ;;
  test)
    bash "${HOME}/.cursor/tools/test-network.sh" 2>/dev/null || {
      curl -sS --max-time 10 -o /dev/null -w 'google: %{http_code}\n' https://www.google.com
      curl -sS --max-time 10 -o /dev/null -w 'cursor: %{http_code}\n' https://api2.cursor.sh
    }
    ;;
  download)
    URL="${1:?URL required}"
    OUT="${2:-}"
    exec bash "${PROXYFIX_ROOT}/bin/proxyfix-download" "$URL" ${OUT:+"$OUT"}
    ;;
  help|-h|--help)
    usage
    ;;
  *)
    echo "Unknown command: $CMD" >&2
    usage >&2
    exit 1
    ;;
esac