open-url

#!/bin/bash

command_exists() {
    which "$1" >/dev/null 2>&1
}

add_browser_if_available() {
    local browser="$1"; shift
    local binary="$1"
    [ -n "$binary" ] ||
        binary="$browser"

    if command_exists "$binary"; then
        browsers[$browser]="$binary"
        priority+=("$browser")
    else
        debug "$browser ($binary) not found"
    fi
}

is_browser_running() {
    debug "$1 - pids"
    pidof -q "$1"
}

launch() {
    local browser="$1" && shift
    debug "browser: $browser"
    debug "browser-binary: ${browsers[$browser]}"

    exec "${browsers[$browser]}" "$@" </dev/null >/dev/null 2>&1 &
    disown
    exit 0
}

# show bash substitutions; i.e turn on xtrace?
if [ "$bash_debug" = 1 ]; then
    set -x
fi

# be noisy .. show debug?
if [[ "$debug" = 1  || "$bash_debug" = 1 ]]; then
    debug() { echo "DEBUG: $*" 2>&1 ; }
else
    # keep it quiet, can ya!
    exec </dev/null
    exec >/dev/null
    exec 2>&1

    debug() { return 0; }
fi

# array to hold browser definitions
declare -A browsers

# browsers in priority order; filled in by add_browser_if_available
priority=()

# priority order of browsers
add_browser_if_available vivaldi
add_browser_if_available chrome google-chrome
add_browser_if_available opera
add_browser_if_available firefox
add_browser_if_available epiphany-browser
add_browser_if_available rekonq
add_browser_if_available konqueror

# loop through the priority list and see which one is already running
for b in "${priority[@]}"; do
    is_browser_running "$b" &&
        launch "$b" "$@"
done

# if nothing was found running, launch in the first one
launch "${priority[0]}" "$@"