#!/bin/bash

# Configuration file path
CONFIG_DIR="$(dirname $0)"
CONFIG_FILE="${CONFIG_DIR}/star_trek_languages.conf"
DEBUG=false

# Function to display debug messages
debug() {
    if [ "$DEBUG" = true ]; then
        echo "DEBUG: $1"
    fi
}

# Function to list available languages
list_languages() {
    echo "Available languages:"
    grep -E "^[a-zA-Z_]+ " "$CONFIG_FILE"|awk '{print $1}'|grep -v _|sort -u
}

# Function to translate date to a fictional language
translate_date() {
    local language=$1
    local day_label=""
    local month_label=""
    local day_of_week_label=""
    local month_of_year_label=""
    
    # Get the current day, month, and day of week
    current_day=$(date +%d)
    current_month=$(date +%B)
    current_day_of_week=$(date +%u)

    debug "Current day: $current_day"
    debug "Current month: $current_month"
    debug "Current day of week: $current_day_of_week"

    # Read the configuration file and get the labels
    while IFS= read -r line; do
        if [[ $line == "$language "* ]]; then
            day_label=$(echo $line | awk '{print $2}')
            month_label=$(echo $line | awk '{print $3}')
        elif [[ $line == "${language}_day $current_day_of_week "* ]]; then
            day_of_week_label=$(echo $line | awk '{print $3}')
        elif [[ $line == "${language}_month $current_month "* ]]; then
            month_of_year_label=$(echo $line | awk '{print $3}')
        fi
    done < "$CONFIG_FILE"

    debug "Day label: $day_label"
    debug "Month label: $month_label"
    debug "Day of week label: $day_of_week_label"
    debug "Month of year label: $month_of_year_label"

    if [ -z "$day_label" ] || [ -z "$month_label" ] || [ -z "$day_of_week_label" ] || [ -z "$month_of_year_label" ]; then
        echo "Language not supported or not found in the configuration file."
        exit 1
    fi

    # Translate and display the date
    echo "Today's date in ${language^} is: $day_of_week_label $day_label $current_day, $month_of_year_label $month_label"
}

# Check for command line arguments
if [ $# -eq 0 ]; then
    echo "Usage: $(basename $0) [-d] [-l] <language>"
    exit 1
fi

# Parse command line options using getopts
while getopts "ld" opt; do
    case ${opt} in
        l)  # List available languages
            list_languages
            exit 0
            ;;
        d)  # Enable debug mode
            DEBUG=true
            ;;
        \?) # Invalid option
            echo "Invalid option: -$OPTARG"
            exit 1
            ;;
    esac
done

# Shift to the positional arguments after options
shift $((OPTIND -1))

# If no positional arguments left after processing options, show usage
if [ $# -eq 0 ]; then
    echo "Usage: $(basename $0) [-d] [-l] <language>"
    exit 1
fi

# The first remaining argument should be the language
language=$1

# Call the function with the provided language
translate_date "$language"