#!/usr/bin/with-contenv bash

# make our folders
mkdir -p \
    /config/{nginx/site-confs,keys} \
    /run \
    /var/lib/nginx/tmp/client_body \
    /var/tmp/nginx

# generate keys (maybe)
if [[ $DISABLE_HTTPS -ne 1 ]]; then
    if [[ $ENABLE_LETSENCRYPT -eq 1 ]]; then
        if [[ ! -f /etc/letsencrypt/live/$LETSENCRYPT_DOMAIN/fullchain.pem ]]; then
            certbot certonly \
                --noninteractive \
                --standalone \
                --preferred-challenges http \
                -d $LETSENCRYPT_DOMAIN \
                --agree-tos \
                --email $LETSENCRYPT_EMAIL
        fi

        # remove default certbot renewal
        if [[ -f /etc/cron.d/certbot ]]; then
            rm /etc/cron.d/certbot
        fi

        # setup certbot renewal script
        if [[ ! -f /etc/cron.daily/letencrypt-renew ]]; then
            cp /defaults/letsencrypt-renew /etc/cron.daily/
        fi
    else
        # use self-signed certs
        if [[ -f /config/keys/cert.key && -f /config/keys/cert.crt ]]; then
            echo "using keys found in /config/keys"
        else
            echo "generating self-signed keys in /config/keys, you can replace these with your own keys if required"
            SUBJECT="/C=US/ST=TX/L=Austin/O=jitsi.org/OU=Jitsi Server/CN=*"
            openssl req -new -x509 -days 3650 -nodes -out /config/keys/cert.crt -keyout /config/keys/cert.key -subj "$SUBJECT"
        fi
    fi
    if [[ ! -f /config/nginx/dhparams.pem ]]; then
        openssl dhparam -out /config/nginx/dhparams.pem 2048
    fi
fi

# copy config files
if [[ ! -f /config/nginx/nginx.conf ]]; then
    cp /defaults/nginx.conf /config/nginx/nginx.conf
fi

if [[ ! -f /config/nginx/meet.conf ]]; then
    tpl /defaults/meet.conf > /config/nginx/meet.conf
fi

if [[ ! -f /config/nginx/ssl.conf ]]; then
    tpl /defaults/ssl.conf > /config/nginx/ssl.conf
fi

if [[ ! -f /config/nginx/site-confs/default ]]; then
    tpl /defaults/default > /config/nginx/site-confs/default
fi


if [[ $ENABLE_CDN -eq 1 || x$ENABLE_CDN == xtrue ]]; then
    [ -z "$CDN_URL" ] && CDN_URL="https://web-cdn.jitsi.net/"
    export BV=$(dpkg -s jitsi-meet-web | grep Version | awk '{print $2}'| cut -d'.' -f3 | cut -d'-' -f1)
    echo "<base href=\"${CDN_URL}${BV}/\" />" > /usr/share/jitsi-meet/base.html
fi

if [[ ! -f /config/config.js ]]; then
    [ -z "$XMPP_MUC_DOMAIN" ] && export XMPP_MUC_DOMAIN="conference.$XMPP_DOMAIN"
    [ -z "$XMPP_RECORDER_DOMAIN" ] && export XMPP_RECORDER_DOMAIN="recorder.$XMPP_DOMAIN"

    tpl /defaults/config.js > /config/config.js

    if [[ ! -z "${ETHERPAD_URL_BASE}" && -z "$(grep -om1 'etherpad_base:' /config/config.js)" ]]; then
        sed -i \
            -e "/enableWelcomePage/a\    etherpad_base: '/etherpad/p/'," \
            /config/config.js
    fi

    if [[ $ENABLE_TRANSCRIPTIONS -eq 1 || "$ENABLE_TRANSCRIPTIONS" == "true" ]]; then
        sed -i \
             -e "s#// transcribingEnabled:.*#transcribingEnabled: true,#" \
             /config/config.js
    fi
fi

if [[ ! -f /config/interface_config.js ]]; then
    cp /defaults/interface_config.js /config/interface_config.js

    # It will remove parameter 'closedcaptions' from TOOLBAR_BUTTONS if ENABLE_TRANSCRIPTIONS is false,
    # because it enabled by default, but not supported out of the box.
    if [[ $ENABLE_TRANSCRIPTIONS -ne 1 || "$ENABLE_TRANSCRIPTIONS" != "true" ]]; then
        sed -i \
            -e "s#'closedcaptions', ##" \
            /config/interface_config.js
    fi

fi