#!/bin/bash

SERVER=$1
TARGET=$2

_qdbus=${KONVERSATION_DBUS_BIN:-qdbus-qt6}
if ! [ "$(which $_qdbus 2> /dev/null)" ]; then
    _qdbus=qdbus
    if ! [ "$(which $_qdbus 2> /dev/null)" ]; then
        echo "Error: The qdbus (or qdbus-qt6) utility is missing."
        exit 1
    fi
fi

seconds_to_mmss() {
    local total_seconds="$1"

    # Convert to integer (truncate decimal part)
    local int_seconds=$(printf "%.0f" "$total_seconds")

    # Calculate minutes and seconds
    local minutes=$((int_seconds / 60))
    local seconds=$((int_seconds % 60))

    # Format with leading zeros
    printf "%02d:%02d" "$minutes" "$seconds"
}

format_audio() {
    local audio_format="$1"

    # Split the format string on colons
    IFS=':' read -r samplerate bitdepth channels <<< "$audio_format"

    # Fix it all to stereo!
    local channel_text="Stereo"
    case $samplerate in
        dsd64)
            local samplerate="2.822MHz"
            local bitdepth="1"
            dsd="DSD64"
            ;;
        dsd128)
            local samplerate="5.644MHz"
            local bitdepth="1"
            dsd="DSD128"
            ;;
        dsd256)
            local samplerate="11.288MHz"
            local bitdepth="1"
            dsd="DSD256"
            ;;
        dsd512)
            local samplerate="22.576MHz"
            local bitdepth="1"
            dsd="DSD512"
            ;;
        *)
            local trate="$(echo "scale=1; $samplerate / 1000" | bc)"
            samplerate="${trate%.0}kHz"
            dsd=""
            ;;
    esac

    # Return formatted string - we can't set global variables here so we have to split it out later. Thanks bash!
        echo "${samplerate}/${bitdepth}-bit/${channel_text}|${dsd}"
}


get_extension() {
    local filepath="$1"

    # Get just the filename without the path
    local filename="${filepath##*/}"

    # Extract extension and convert to uppercase
    local extension="${filename##*.}"
    echo "${extension^^}"
}

get_mpd_data() {
    # Send commands
    printf "command_list_begin\r\nstatus\r\ncurrentsong\r\ncommand_list_end\r\n" >&3

    # Read responses until we get empty line or OK
    while IFS=': ' read -r name value <&3; do
        [[ "$name" == "" ]] && break  # Empty line = end of response
        [[ "$name" == "OK" ]] && break

        # Process the data
        if [[ -n "$name" && -n "$value" && "$name" =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]]; then
            declare -g "$name=$value"  # Use -g for global scope
        fi
    done
}


# Open non-blocking connection MPD
exec 3<>/dev/tcp/localhost/6600

# Clears the connection string from the buffer
read -r greeting <&3

# Request Data
get_mpd_data
# This is part of the global varible hack junk.
audio_result=$(format_audio $audio)
# It splits the result in to new variables
format_part="${audio_result%|*}"    # Everything before the |
dsd_part="${audio_result#*|}"       # Everything after the |

# Generate codec - either extension, DSD??, or DSD64/Super Audio CD.
fileext=$(get_extension "$file")
if [[ -z "$dsd_part" ]]; then
    codec_result="$fileext"
elif [[ -n "dsd_part" && "$fileext" == "ISO" ]]; then
    codec_result="$dsd_part/Super Audio CD"
else
    codec_result="$dsd_part"
fi


# Format output to send to konversation
spam="/me mpd: $Artist - $Title (From: $Album) [$(seconds_to_mmss $elapsed)/$(seconds_to_mmss $duration) | $format_part | $bitrate kbps | $codec_result]"

# Spam that IRC channel!
$_qdbus org.kde.konversation /irc say $SERVER "$TARGET" "$spam"

exec 3<&-