#!/usr/bin/env bash
[ -f functions.sh ] && source functions.sh
# shellcheck source=/dev/null
[ -f bot.cfg ] && source bot.cfg

userName="$1"
channelName="$2"
shift 2

# Debug logging
echo "DEBUG say.sh: userName='$userName' channelName='$channelName' args='$*'" >> "$log"

# Check if there are any arguments
if [[ -z "$*" ]]; then
    msg "$channelName" "$userName: Please provide a message to say."
    exit 0
fi

# Ensure channels array is available
if [[ -z "${channels[*]}" ]]; then
    msg "$channelName" "$userName: Configuration error - no channels configured."
    exit 1
fi

# Check if invoked from a PM (channel name equals username)
if [[ "$channelName" == "$userName" ]]; then
    # PM context: check if first argument is a channel name
    # Extract just the first word (bot.sh passes all remaining args as a single string)
    firstWord="${1%% *}"
    echo "DEBUG say.sh: PM context detected, firstWord='$firstWord', allArgs='$*'" >> "$log"

    # Note: bot.sh strips "# " (hash-space) from commands, but "#channel" stays intact
    # Remove # prefix if present for comparison
    firstWordNoHash="${firstWord#\#}"

    # Check if first word looks like a channel name (matches configured channels)
    isConnected=false
    targetChannel=""

    for configuredChannel in "${channels[@]}"; do
        if [[ "$firstWordNoHash" == "$configuredChannel" ]]; then
            isConnected=true
            targetChannel="$configuredChannel"
            break
        fi
    done

    if [[ "$isConnected" == "true" ]]; then
        # First word is a known channel, extract the rest as the message
        restOfMessage="${1#* }"
        # If firstWord == $1, there was no space, so no message
        if [[ "$firstWord" == "$1" ]]; then
            msg "$userName" "Please provide a message to say in #$targetChannel."
        else
            msg "#$targetChannel" "$restOfMessage"
        fi
    else
        # Check if first word looks like it could be a channel name (not in our list)
        # If it contains no spaces and looks channel-ish, assume user specified wrong channel
        if [[ "$firstWordNoHash" =~ ^[a-zA-Z0-9_-]+$ ]] && [[ ! "$firstWordNoHash" =~ [[:space:]] ]]; then
            # Looks like a channel name but we're not connected
            msg "$userName" "I am not connected to #$firstWordNoHash."
        else
            # No channel specified, broadcast to all channels
            for configuredChannel in "${channels[@]}"; do
                msg "#$configuredChannel" "$*"
            done
        fi
    fi
else
    # Channel context: just say the message in the current channel
    msg "$channelName" "$*"
fi