#!/usr/bin/env sh
set -e

# logging functions
in_log() {
    local type="$1"
    shift
    printf '%s [%s] [Entrypoint]: %s\n' "$(date -u '+%Y-%m-%dT%H:%M:%SZ')" "$type" "$*"
}

in_error() {
    in_log ERROR "$@" >&2
    exit 1
}

# Indirect expansion (ie) is not supported in bourne shell. That's why we are using this "magic" here.
ie_gv() {
    eval "echo \$$1"
}

# usage: file_env VAR [DEFAULT]
#    ie: file_env 'XYZ_DB_PASSWORD' 'example'
# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
#  "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
file_env() {
    local var="$1"
    local fileVar="${var}_FILE"
    local def="${2:-}"

    if [ "$(ie_gv ${var})" != "" ]; then
        if [ "$(ie_gv ${fileVar})" != "" ]; then
            in_error "Both $var and $fileVar are set (but are exclusive)"
        fi
        unset "$fileVar"
        return
    fi

    if [ "$(ie_gv ${fileVar})" != "" ] && [ -f "$(ie_gv ${fileVar})" ]; then
        export "$var"="$(cat $(ie_gv ${fileVar}))"
    elif [ ! -z "$def" ]; then
        export "$var"="$def"
    fi

    unset "$fileVar"
}

# first arg is `-f` or `--some-option`
if [ "${1#-}" != "$1" ]; then
    set -- supervisord "$@"
fi

# create storage volume
if [ -d "$BAK_STORAGE_PATH" ]; then
    if [ ! -d /var/www/app/storage ]; then
        mv "$BAK_STORAGE_PATH" /var/www/app/storage
    else
        # copy missing folders in storage
        IN_STORAGE_BACKUP="$(ls "$BAK_STORAGE_PATH")"
        for path in $IN_STORAGE_BACKUP; do
            if [ ! -e "/var/www/app/storage/$path" ]; then
                cp -Rp "$BAK_STORAGE_PATH/$path" "/var/www/app/storage/"
            fi
        done
    fi
    rm -rf "$BAK_STORAGE_PATH"
fi

# prevent init scripts from running when upgrading from IN <= 5.1.62
if [ -f /var/www/app/public/version ] && [ "$INVOICENINJA_VERSION" != "$(cat /var/www/app/public/version)" ]; then
    touch /var/www/app/storage/.initialized
fi

# create public volume
if [ -d "$BAK_PUBLIC_PATH" ]; then
    if [ ! -d /var/www/app/public ]; then
        mv "$BAK_PUBLIC_PATH" /var/www/app/public
    elif [ ! -f /var/www/app/public/version ] || [ "$INVOICENINJA_VERSION" != "$(cat /var/www/app/public/version)" ]; then
        # version mismatch, update all
        cp -au "$BAK_PUBLIC_PATH/"* /var/www/app/public
        echo "$INVOICENINJA_VERSION" >/var/www/app/public/version
    elif [ ! -d /var/www/app/public/logo ] && [ -d "$BAK_PUBLIC_PATH/logo" ]; then
        # missing logo folder only, copy folder
        cp -a "$BAK_PUBLIC_PATH/logo" /var/www/app/public/logo
    elif [ -d "$BAK_PUBLIC_PATH/logo" ]; then
        # copy missing folders in logo
        IN_LOGO_BACKUP="$(ls "$BAK_PUBLIC_PATH/logo")"
        for path in $IN_LOGO_BACKUP; do
            if [ ! -e "/var/www/app/public/logo/$path" ]; then
                cp -a "$BAK_PUBLIC_PATH/logo/$path" "/var/www/app/public/logo/"
            fi
        done
    fi
    rm -rf "$BAK_PUBLIC_PATH"
fi

# Initialize values that might be stored in a file
file_env 'APP_KEY'
file_env 'API_SECRET'
file_env 'CLOUDFLARE_API_KEY'
file_env 'DB_USERNAME'
file_env 'DB_USERNAME1'
file_env 'DB_USERNAME2'
file_env 'DB_PASSWORD'
file_env 'DB_PASSWORD1'
file_env 'DB_PASSWORD2'
file_env 'MAIL_USERNAME'
file_env 'MAIL_PASSWORD'
file_env 'MAILGUN_SECRET'
file_env 'S3_KEY'
file_env 'S3_SECRET'

# Run IN/Laravel stuff
if [[ "$1" == "supervisord" ]] || [[ "$1" == "php-fpm" ]]; then
    in_log INFO "Initialising Invoice Ninja..."
    . invoiceninja-init.sh
fi

exec docker-php-entrypoint "$@"