Switch profiles on bluez cards with alsa (A2DP and HFP)

bluez-switcher.sh

#!/usr/bin/env bash
# Switch profiles between bluez cards (A2DP and HFP)
# Check profiles and cards with: pactl list cards
# Victor Oliveira <victor.oliveira@gmx.com>

CARD="bluez_card.AA_BB_CC_DD_EE_FF"


while read LINE; do
    test -n "${CARD_FOUND}" && {
        grep "Perfil ativo:" <<<"${LINE}" &> /dev/null && {
            ACTIVE_PROFILE="${LINE#*: }"
            break
        }
    }

    grep "${CARD}" <<<"${LINE}" &> /dev/null && {
        CARD_FOUND=1
    }
done < <(pactl list cards)


test "${ACTIVE_PROFILE}" == "a2dp_sink" && {
    pactl set-card-profile "${CARD}" handsfree_head_unit
} || {
    pactl set-card-profile "${CARD}" a2dp_sink
}