#!/usr/bin/env bash

SESSION="circolog"
DAEMON="d"
WINDOW="${SESSION}:${DAEMON}"

send_command() {
    tmux send-keys -t "${WINDOW}.${1}" "${2}" Enter
}

digit_command() {
    local input=$2
    for (( i=0; i<${#input}; i++ ))
    do
        sleep 0.1
        tmux send-keys -t "${WINDOW}.${1}" "${input:$i:1}"
    done
    sleep 2
    tmux send-keys -t "${WINDOW}.${1}" Enter
}

digit_comment() {
    local input=$2
    for (( i=0; i<${#input}; i++ ))
    do
        sleep 0.1
        tmux send-keys -t "${WINDOW}.${1}" "${input:$i:1}"
    done
    sleep 2
    for (( i=0; i<${#input}; i++ ))
    do
        tmux send-keys -t "${WINDOW}.${1}" "C-h"
    done
}

config() {
    tmux new -s $SESSION -n $DAEMON -d
    tmux set-option -t $SESSION status off
    tmux split-window -v -t $WINDOW
    send_command 0 "bash"
    send_command 1 "bash"
    send_command 0 "PS1='my-server ~ '"
    send_command 1 "PS1='my-server ~ '"
    send_command 0 "clear"
    send_command 1 "clear"
}

start_circologd() {
    sleep 3;
    digit_comment 0 "Let's start circologd in foreground. It can be put in background as an ordinary unix process and will keep on listening."
    digit_command 0 "circologd"
}

start_ctl() {
    sleep 20;
    digit_comment 1 "Let's also play with the control utility for circologd, circologctl."
    sleep 1
    digit_command 1 "circologctl status"
    sleep 3
    digit_comment 1 "circologd can be paused..."
    digit_command 1 "circologctl pause"
    sleep 3;
    digit_comment 1 "...and unpaused"
    digit_command 1 "circologctl pause"
    sleep 3
    digit_comment 1 "A filter can be applied, so that circologd record only some messages."
    digit_command 1 "circologctl filter 'msg LIKE \"%interested%\"'"
    sleep 1
    digit_command 1 "circologctl status"
}

attach_session() {
    tmux attach -t $SESSION
}

cleanup() {
    send_command 0 "C-c"
    tmux kill-session -t $SESSION
}

trap cleanup 2 15
config
start_circologd &
start_ctl &
attach_session