# ── Cloud Run v2 Services ─────────────────────────────────────────────────────
# Three prod regions + one stage region.
# All services use INGRESS_TRAFFIC_ALL so the global LB can reach them.
# Secrets are mounted as env vars via Secret Manager volume references.

locals {
  run_labels = {
    "managed-by" = "terraform"
    "project"    = "neuron-marketing"
  }
}

# ── Prod — us-central1 ────────────────────────────────────────────────────────

resource "google_cloud_run_v2_service" "prod_us" {
  name     = "marketing-prod-us"
  location = "us-central1"
  project  = var.project_id

  # Allow the global HTTP(S) load balancer to reach this service
  ingress = "INGRESS_TRAFFIC_ALL"

  labels = local.run_labels

  template {
    service_account = google_service_account.marketing.email

    scaling {
      min_instance_count = 1
      max_instance_count = 100
    }

    containers {
      image = local.image

      resources {
        limits = {
          cpu    = "2"
          memory = "1Gi"
        }
        # cpu_idle = false keeps CPU allocated at all times (no throttling between requests)
        cpu_idle = false
      }

      # ── Static env vars ───────────────────────────────────────────────────
      env {
        name  = "NODE_ENV"
        value = "production"
      }
      env {
        name  = "NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY"
        value = local.stripe_publishable_key
      }

      # ── Secret env vars from Secret Manager ───────────────────────────────
      env {
        name = "STRIPE_SECRET_KEY"
        value_source {
          secret_key_ref {
            secret  = "stripe-secret-key"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_WEBHOOK_SECRET"
        value_source {
          secret_key_ref {
            secret  = "stripe-webhook-secret"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_PROFESSIONAL"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-professional"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_FOUNDING"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-founding"
            version = "latest"
          }
        }
      }

      ports {
        container_port = 3000
        name           = "http1"
      }

      startup_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 5
        timeout_seconds       = 5
        period_seconds        = 10
        failure_threshold     = 3
      }

      liveness_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 15
        timeout_seconds       = 5
        period_seconds        = 30
        failure_threshold     = 3
      }
    }

    max_instance_request_concurrency = 1000
  }

  traffic {
    type    = "TRAFFIC_TARGET_ALLOCATION_TYPE_LATEST"
    percent = 100
  }

  depends_on = [google_project_iam_member.marketing_secret_accessor]
}

# ── Prod — europe-west1 ───────────────────────────────────────────────────────

resource "google_cloud_run_v2_service" "prod_eu" {
  name     = "marketing-prod-eu"
  location = "europe-west1"
  project  = var.project_id

  ingress = "INGRESS_TRAFFIC_ALL"
  labels  = local.run_labels

  template {
    service_account = google_service_account.marketing.email

    scaling {
      min_instance_count = 1
      max_instance_count = 100
    }

    containers {
      image = local.image

      resources {
        limits = {
          cpu    = "2"
          memory = "1Gi"
        }
        cpu_idle = false
      }

      env {
        name  = "NODE_ENV"
        value = "production"
      }
      env {
        name  = "NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY"
        value = local.stripe_publishable_key
      }

      env {
        name = "STRIPE_SECRET_KEY"
        value_source {
          secret_key_ref {
            secret  = "stripe-secret-key"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_WEBHOOK_SECRET"
        value_source {
          secret_key_ref {
            secret  = "stripe-webhook-secret"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_PROFESSIONAL"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-professional"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_FOUNDING"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-founding"
            version = "latest"
          }
        }
      }

      ports {
        container_port = 3000
        name           = "http1"
      }

      startup_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 5
        timeout_seconds       = 5
        period_seconds        = 10
        failure_threshold     = 3
      }

      liveness_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 15
        timeout_seconds       = 5
        period_seconds        = 30
        failure_threshold     = 3
      }
    }

    max_instance_request_concurrency = 1000
  }

  traffic {
    type    = "TRAFFIC_TARGET_ALLOCATION_TYPE_LATEST"
    percent = 100
  }

  depends_on = [google_project_iam_member.marketing_secret_accessor]
}

# ── Prod — asia-northeast1 ────────────────────────────────────────────────────

resource "google_cloud_run_v2_service" "prod_apac" {
  name     = "marketing-prod-apac"
  location = "asia-northeast1"
  project  = var.project_id

  ingress = "INGRESS_TRAFFIC_ALL"
  labels  = local.run_labels

  template {
    service_account = google_service_account.marketing.email

    scaling {
      min_instance_count = 1
      max_instance_count = 100
    }

    containers {
      image = local.image

      resources {
        limits = {
          cpu    = "2"
          memory = "1Gi"
        }
        cpu_idle = false
      }

      env {
        name  = "NODE_ENV"
        value = "production"
      }
      env {
        name  = "NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY"
        value = local.stripe_publishable_key
      }

      env {
        name = "STRIPE_SECRET_KEY"
        value_source {
          secret_key_ref {
            secret  = "stripe-secret-key"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_WEBHOOK_SECRET"
        value_source {
          secret_key_ref {
            secret  = "stripe-webhook-secret"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_PROFESSIONAL"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-professional"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_FOUNDING"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-founding"
            version = "latest"
          }
        }
      }

      ports {
        container_port = 3000
        name           = "http1"
      }

      startup_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 5
        timeout_seconds       = 5
        period_seconds        = 10
        failure_threshold     = 3
      }

      liveness_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 15
        timeout_seconds       = 5
        period_seconds        = 30
        failure_threshold     = 3
      }
    }

    max_instance_request_concurrency = 1000
  }

  traffic {
    type    = "TRAFFIC_TARGET_ALLOCATION_TYPE_LATEST"
    percent = 100
  }

  depends_on = [google_project_iam_member.marketing_secret_accessor]
}

# ── Stage — us-central1 ───────────────────────────────────────────────────────
# min_instances=0 to save cost on staging.
# Cloudflare Access handles auth in front; Cloud Run itself is open so the LB
# health checks pass without credentials.

resource "google_cloud_run_v2_service" "stage" {
  name     = "marketing-stage"
  location = "us-central1"
  project  = var.project_id

  ingress = "INGRESS_TRAFFIC_ALL"

  labels = merge(local.run_labels, {
    "environment" = "stage"
  })

  template {
    service_account = google_service_account.marketing.email

    scaling {
      min_instance_count = 0
      max_instance_count = 10
    }

    containers {
      image = local.image

      resources {
        limits = {
          cpu    = "1"
          memory = "512Mi"
        }
        cpu_idle = true
      }

      env {
        name  = "NODE_ENV"
        value = "production"
      }
      env {
        name  = "NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY"
        value = local.stripe_publishable_key
      }

      env {
        name = "STRIPE_SECRET_KEY"
        value_source {
          secret_key_ref {
            secret  = "stripe-secret-key"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_WEBHOOK_SECRET"
        value_source {
          secret_key_ref {
            secret  = "stripe-webhook-secret"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_PROFESSIONAL"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-professional"
            version = "latest"
          }
        }
      }
      env {
        name = "STRIPE_PRICE_FOUNDING"
        value_source {
          secret_key_ref {
            secret  = "stripe-price-founding"
            version = "latest"
          }
        }
      }

      ports {
        container_port = 3000
        name           = "http1"
      }

      startup_probe {
        http_get {
          path = "/api/health"
          port = 3000
        }
        initial_delay_seconds = 5
        timeout_seconds       = 5
        period_seconds        = 10
        failure_threshold     = 5
      }
    }

    max_instance_request_concurrency = 1000
  }

  traffic {
    type    = "TRAFFIC_TARGET_ALLOCATION_TYPE_LATEST"
    percent = 100
  }

  depends_on = [google_project_iam_member.marketing_secret_accessor]
}