#!/usr/bin/env bash
[ -f functions.sh ] && source functions.sh

farewellsFile="triggers/bye/farewells.txt"

# Time tracking to prevent spam from flaky connections
# Track last bye time for each user (in seconds since epoch)
declare -A lastByeTime

# Only say bye if user hasn't been farewelled in the last hour (3600 seconds)
currentTime=$(date +%s)
userName="${1,,}"
cooldownPeriod=3600

if [[ -n "${lastByeTime[$userName]}" ]]; then
    timeSinceLastBye=$((currentTime - lastByeTime[$userName]))
    if [[ $timeSinceLastBye -lt $cooldownPeriod ]]; then
        # User was farewelled recently, skip bye message
        exit 0
    fi
fi

# Update last bye time for this user
lastByeTime[$userName]=$currentTime

# All names to match are completely lowercase.
case "$userName" in
storm_dragon)
msg "${2%% :*}" "NOOOOOOOOOO!!! $1: come back!!!"
;;
*)
# Read farewells from file into array
if [[ -f "$farewellsFile" ]]; then
    mapfile -t farewell < "$farewellsFile"
else
    # Fallback if file doesn't exist
    farewell=("Goodbye" "Farewell!")
fi

# Replace placeholders with actual values
selectedFarewell="${farewell[$((RANDOM % ${#farewell[@]}))]}"
selectedFarewell="${selectedFarewell//\{channel\}/${2%% :*}}"

# Check if farewell contains {name} placeholder
if [[ "$selectedFarewell" == *"{name}"* ]]; then
    # Replace {name} with actual name, don't add prefix
    selectedFarewell="${selectedFarewell//\{name\}/$1}"
    msg "${2%% :*}" "$selectedFarewell"
else
    # No {name} placeholder, use traditional "name: farewell" format
    msg "${2%% :*}" "$1: $selectedFarewell"
fi
;;
esac