#!/bin/bash

## Init is run on host
## For now it is run every time the script is launched, but
## it should be launched only once after build.

## Accessible variables are:
## - SERVICE_NAME        Name of current service
## - DOCKER_BASE_IMAGE   Base image from which this service might be built if any
## - SERVICE_DATASTORE           Location on host of the DATASTORE of this service
## - SERVICE_CONFIGSTORE         Location on host of the CONFIGSTORE of this service

. lib/common || exit 1

set -e

service_def=$(get_compose_service_def "$SERVICE_NAME")

USER_EMAIL=$(echo "$service_def" | shyaml get-value options.email 2>/dev/null) || {
    err "No ${WHITE}email${NORMAL} value in ${DARKYELLOW}$SERVICE_NAME${NORMAL} compose's ${WHITE}options${NORMAL}."
    exit 1
}

config="
$SERVICE_NAME:
  environment:
    LETSENCRYPT_USER_MAIL: $USER_EMAIL"

if environment_def="$(printf "%s" "$service_def" | shyaml -y get-value options.env 2>/dev/null)"; then
    while read-0 key value; do
        config+="$(printf "\n    %s: %s" "$key" "$value")"
    done < <(printf "%s" "$environment_def" | yaml_opt_bash_env_ignore_first_level LEXICON)

    if ! provider=$(printf "%s" "$environment_def" | shyaml -y get-value provider 2>/dev/null); then
        provider=
        ## If no provider is given, we fallback on the first found

        while read-0 key value; do
            [[ "$(echo "$value" | shyaml get-type)" == "struct" ]] && {
                provider="$key"
                break
            }
        done < <(echo "$environment_def" | shyaml key-values-0)
        warn "No ${WHITE}provider${NORMAL} key given, had to infer it, chose '$key'."
    fi

    config+=$(echo -en "\n    LEXICON_PROVIDER: $provider")
fi

if ! challenge_type=$(printf "%s" "$service_def" | shyaml get-value "options.challenge-type" 2>/dev/null); then
    warn "No ${WHITE}challenge-type${NORMAL} provided, defaulting to 'http'."
    challenge_type=http
fi
config+=$(echo -en "\n    CHALLENGE_TYPE: $challenge_type")

init-config-add "$config"

mkdir -p "$SERVICE_DATASTORE/etc/letsencrypt"