#!/bin/bash

set -e
set -o pipefail

err_and_quit () {
    printf "\n\n\033[33mError occured during setup. \nPlease fix possible issues and run the script again.\033[m\n\n"
    exit 1
}

on_ctrl_c_pressed () {
    printf "\n\n\033[33mYou have pressed Ctrl-C. Setup is interrupted.\033[m\n\n"
    exit 1
}

# clean newly created ccnet/seafile configs when exit on SIGINT
trap on_ctrl_c_pressed 2

read_yes_no () {
    printf "[yes|no] "
    read yesno
    while [[ "$yesno" != "yes" && "$yesno" != "no" ]]
    do
        printf "please answer [yes|no] "
        read yesno
    done

    if [[ "$yesno" == "no" ]]; then
        return 1
    else
        return 0
    fi
}

ask_question () {
    local question default key
    question=$1
    default=$2
    key=$3
    printf "$question"
    printf "\n"
    if [[ "$default" != "" && "$default" != "nodefault" ]]; then
        printf "[default: $default] "
    elif [[ "$key" != "" ]]; then
        printf "[$key]: "
    fi
}

get_server_name () {
    local question="Host name for your seafile server?" default="seafile.example.com"
    ask_question "$question" "seafile.example.com"
    read server_name
    if [[ "$server_name" == "" ]]; then
        server_name=$default
    elif [[ ! $server_name =~ ^[a-zA-Z0-9_-.]+$ ]]; then
        printf "\n\033[33m${server_name}\033[m is not a valid name.\n"
        get_server_name
    fi
    echo
}

# echo "Please specify the email address and password for the seahub administrator."
# echo "You can use them to login as admin on your seahub website."
# echo

get_admin_email () {
    local question="Admin email address for your seafile server?" default="me@example.com"
    ask_question "$question" "$default"
    read admin_email
    if [[ "$admin_email" == "" ]]; then
        admin_email=$default
    elif [[ ! $admin_email =~ ^.+@.*\..+$ ]]; then
        echo "$admin_email is not a valid email address"
        get_admin_email
    fi
}

get_admin_passwd () {
    local question="Admin password for your seafile server?"
    ask_question "$question" "nodefault" "seahub admin password"
    read -s admin_passwd
    echo
    question="Please enter the password again:"
    ask_question "$question" "nodefault" "seahub admin password again"
    read -s admin_passwd_again
    echo
    if [[ "$admin_passwd" != "$admin_passwd_again" ]]; then
        printf "\033[33mThe passwords didn't match.\033[m"
        get_admin_passwd
    elif [[ "$admin_passwd" == "" ]]; then
        echo "Password cannot be empty."
        get_admin_passwd
    fi
}

get_server_name
get_admin_email
get_admin_passwd

cat >containers/bootstrap.conf<<EOF
[server]
server.hostname = $server_name
admin.email = $admin_email
admin.password = $admin_passwd
EOF

# ./launcher bootstrap && ./launcher start