# =========== STACKIT Ressourcen ===========
data "stackit_dns_zone" "zone" {
  project_id = var.stackit_project_id
  name       = trimsuffix(var.moodle_domain, ".")
}

resource "stackit_dns_record_set" "moodle_cname" {
  project_id = var.stackit_project_id
  zone_id    = data.stackit_dns_zone.zone.id
  name       = var.moodle_domain
  type       = "CNAME"
  ttl        = 300
  records    = ["console.apps.01.cf.eu01.stackit.cloud."]
}

resource "stackit_object_storage_bucket" "moodle_bucket" {
  project_id = var.stackit_project_id
  name       = var.s3_bucket_name
}

resource "stackit_object_storage_credential" "s3_credentials" {
  project_id = var.stackit_project_id
}

# =========== Cloud Foundry Ressourcen ===========
resource "cloudfoundry_org" "org" {
  name = var.cf_org_name
}

resource "cloudfoundry_space" "space" {
  name = var.cf_space_name
  org  = cloudfoundry_org.org.id
}

data "cloudfoundry_service" "mariadb" {
  name = "appcloud-mariadb1011"
}

resource "cloudfoundry_service_instance" "db" {
  name       = "moodle-db"
  space      = cloudfoundry_space.space.id
  service_plan = data.cloudfoundry_service.mariadb.service_plans["mariadb-1.4.10-single"]
}

data "cloudfoundry_service" "redis" {
  name = "appcloud-redis7"
}

resource "cloudfoundry_service_instance" "redis_cache" {
  name       = "moodle-redis"
  space      = cloudfoundry_space.space.id
  service_plan = data.cloudfoundry_service.redis.service_plans["redis-4.16.100-replica"]
}

resource "cloudfoundry_user_provided_service_instance" "s3_cups" {
  name        = "moodle-s3-credentials"
  space       = cloudfoundry_space.space.id
  credentials = jsonencode({
    access_key = stackit_object_storage_credential.s3_credentials.access_key
    secret_key = stackit_object_storage_credential.s3_credentials.secret_key
    bucket     = stackit_object_storage_bucket.moodle_bucket.name
    endpoint   = "https://object.storage.eu01.onstackit.cloud/"
  })
}

# =========== Dynamische config.php Erstellung ===========
resource "local_file" "config_php" {
  content = templatefile("${path.module}/config.php.tpl", {
    use_cdn            = var.use_cdn
    wwwroot            = var.use_cdn ? "https://${var.moodle_domain}" : "https://${var.moodle_internal_host}.${trimsuffix(var.moodle_domain, ".")}"
    db_service_name    = data.cloudfoundry_service.mariadb.name
    redis_service_name = data.cloudfoundry_service.redis.name
    s3_cups_name       = cloudfoundry_user_provided_service_instance.s3_cups.name
    cdn_proxy_ip       = var.cdn_proxy_ip
    moodle_domain      = var.moodle_domain
  })
  filename = "${path.module}/moodle/config.php"
}

# =========== Cloud Foundry Applikation (cf push) ===========
resource "cloudfoundry_app" "moodle_app" {
  name         = "moodle"
  space        = cloudfoundry_space.space.id
  path         = "./moodle"
  memory       = "2G"
  disk_quota   = "2G"
  instances    = 2
  buildpack    = "https://github.com/cloudfoundry/php-buildpack.git"

  service_binding { service_instance = cloudfoundry_service_instance.db.id }
  service_binding { service_instance = cloudfoundry_service_instance.redis_cache.id }
  service_binding { service_instance = cloudfoundry_user_provided_service_instance.s3_cups.id }

  routes {
    route = "${var.moodle_internal_host}.${trimsuffix(var.moodle_domain, ".")}"
  }
  routes {
    route = var.moodle_domain
  }

  depends_on = [
    local_file.config_php
  ]
}