variable "tls_secret_name" {}
variable "tier" { type = string }

resource "kubernetes_namespace" "osm-routing" {
  metadata {
    name = "osm-routing"
    labels = {
      "istio-injection" : "disabled"
    }
  }
}

# --- OSRM Foot ---
resource "kubernetes_deployment" "osrm-foot" {
  metadata {
    name      = "osrm-foot"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app  = "osrm-foot"
      tier = var.tier
    }
  }
  spec {
    replicas = 1
    strategy {
      type = "Recreate"
    }
    selector {
      match_labels = {
        app = "osrm-foot"
      }
    }
    template {
      metadata {
        labels = {
          app = "osrm-foot"
        }
      }
      spec {
        container {
          name    = "osrm-foot"
          image   = "ghcr.io/project-osrm/osrm-backend:latest"
          command = ["osrm-routed", "--algorithm", "MLD", "/data/foot/greater-london-latest.osrm"]
          port {
            name           = "http"
            container_port = 5000
            protocol       = "TCP"
          }
          volume_mount {
            name       = "osrm-data"
            mount_path = "/data"
          }
        }
        volume {
          name = "osrm-data"
          nfs {
            server = "10.0.10.15"
            path   = "/mnt/main/osm-routing/osrm-data"
          }
        }
      }
    }
  }
}

resource "kubernetes_service" "osrm-foot" {
  metadata {
    name      = "osrm-foot"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app = "osrm-foot"
    }
  }
  spec {
    selector = {
      app = "osrm-foot"
    }
    port {
      port        = 5000
      target_port = 5000
    }
  }
}

# --- OSRM Bicycle ---
resource "kubernetes_deployment" "osrm-bicycle" {
  metadata {
    name      = "osrm-bicycle"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app  = "osrm-bicycle"
      tier = var.tier
    }
  }
  spec {
    replicas = 1
    strategy {
      type = "Recreate"
    }
    selector {
      match_labels = {
        app = "osrm-bicycle"
      }
    }
    template {
      metadata {
        labels = {
          app = "osrm-bicycle"
        }
      }
      spec {
        container {
          name    = "osrm-bicycle"
          image   = "ghcr.io/project-osrm/osrm-backend:latest"
          command = ["osrm-routed", "--algorithm", "MLD", "/data/bicycle/greater-london-latest.osrm"]
          port {
            name           = "http"
            container_port = 5000
            protocol       = "TCP"
          }
          volume_mount {
            name       = "osrm-data"
            mount_path = "/data"
          }
        }
        volume {
          name = "osrm-data"
          nfs {
            server = "10.0.10.15"
            path   = "/mnt/main/osm-routing/osrm-data"
          }
        }
      }
    }
  }
}

resource "kubernetes_service" "osrm-bicycle" {
  metadata {
    name      = "osrm-bicycle"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app = "osrm-bicycle"
    }
  }
  spec {
    selector = {
      app = "osrm-bicycle"
    }
    port {
      port        = 5000
      target_port = 5000
    }
  }
}

# --- OTP (OpenTripPlanner) ---
resource "kubernetes_deployment" "otp" {
  metadata {
    name      = "otp"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app  = "otp"
      tier = var.tier
    }
  }
  spec {
    replicas = 0 # Scaled down: TfL GTFS data expired, OTP crash-loops on build
    strategy {
      type = "Recreate"
    }
    selector {
      match_labels = {
        app = "otp"
      }
    }
    template {
      metadata {
        labels = {
          app = "otp"
        }
      }
      spec {
        container {
          name  = "otp"
          image = "opentripplanner/opentripplanner:2.6.0"
          args  = ["--build", "--save"]
          port {
            name           = "http"
            container_port = 8080
            protocol       = "TCP"
          }
          volume_mount {
            name       = "otp-data"
            mount_path = "/var/opentripplanner"
          }
        }
        volume {
          name = "otp-data"
          nfs {
            server = "10.0.10.15"
            path   = "/mnt/main/osm-routing/otp-data"
          }
        }
      }
    }
  }
}

resource "kubernetes_service" "otp" {
  metadata {
    name      = "otp"
    namespace = kubernetes_namespace.osm-routing.metadata[0].name
    labels = {
      app = "otp"
    }
  }
  spec {
    selector = {
      app = "otp"
    }
    port {
      port        = 8080
      target_port = 8080
    }
  }
}