#!/bin/bash
# ac-talk — Speak text on the Docker host machine via TTS
# Usage: ac-talk "Hello world"
#        ac-talk -v espeak "Hello world"
#        echo "build done" | ac-talk

DOCKER_HOST_IP="${AC_HOST_IP:-172.17.0.1}"
SSH_USER="${AC_HOST_USER:-me}"
VOICE="${VOICE:-flite}"

# Parse flags
while [ $# -gt 0 ]; do
    case "$1" in
        -v|--voice) VOICE="$2"; shift 2 ;;
        -h|--help)
            echo "Usage: ac-talk [-v flite|espeak] \"text to speak\""
            echo "       echo \"text\" | ac-talk"
            echo ""
            echo "Speaks text on the Docker host machine."
            echo "Env: AC_HOST_IP (default: 172.17.0.1)"
            echo "     AC_HOST_USER (default: me)"
            echo "     VOICE (default: flite)"
            exit 0 ;;
        --) shift; break ;;
        -*) echo "Unknown flag: $1" >&2; exit 1 ;;
        *) break ;;
    esac
done

# Get text from args or stdin
TEXT="$*"
if [ -z "${TEXT}" ]; then
    TEXT=$(cat)
fi

if [ -z "${TEXT}" ]; then
    echo "ac-talk: no text provided" >&2
    exit 1
fi

# Escape single quotes for remote shell
ESCAPED=$(printf '%s' "${TEXT}" | sed "s/'/'\\\\''/g")

case "${VOICE}" in
    espeak|espeak-ng)
        CMD="espeak-ng '${ESCAPED}' 2>/dev/null || espeak '${ESCAPED}' 2>/dev/null"
        ;;
    flite|*)
        CMD="flite -t '${ESCAPED}' 2>/dev/null"
        ;;
esac

ssh -o StrictHostKeyChecking=no -o ConnectTimeout=5 -o LogLevel=ERROR \
    "${SSH_USER}@${DOCKER_HOST_IP}" "${CMD}" 2>/dev/null

if [ $? -ne 0 ]; then
    echo "ac-talk: failed to reach host at ${DOCKER_HOST_IP}" >&2
    exit 1
fi