# Per-host inputs (all supplied by the root module's for_each).

variable "name" {
  description = "Short host key (e.g. \"prod\", \"dev\"), used in log lines."
  type        = string
}

variable "host" {
  description = "IP or hostname to SSH to."
  type        = string
}

variable "ssh_user" {
  description = "SSH login user (must be able to sudo)."
  type        = string
}

variable "ssh_private_key_path" {
  description = "Path to the private key file for ssh_user."
  type        = string
}

variable "role" {
  description = "\"prod\" | \"beta\" | \"dev\" — informational. One module instance is one (host, environment) pair, so vps2 (which runs both prod and beta) gets two instances, each with its own role/app_dir/image tags -- see the root module's `hosts` variable."
  type        = string
}

variable "git_branch" {
  description = "This INFRA repo's branch the host checkout is reset to (independent of which app images are deployed — see backend_image_tag / frontend_image_tag)."
  type        = string
}

variable "backend_image_tag" {
  description = "Backend image tag to pull (emi/thermograph-backend/app), e.g. \"sha-<12 hex>\" (build-push.yml's tag for the backend-repo commit) or a semver tag. The host has no app-repo checkout to derive this from, so it's always explicit."
  type        = string
}

variable "frontend_image_tag" {
  description = "Frontend image tag to pull (emi/thermograph-frontend/app), e.g. \"sha-<12 hex>\" (build-push.yml's tag for the frontend-repo commit) or a semver tag. Always explicit, same as backend_image_tag."
  type        = string
}

variable "domain" {
  description = "Public domain. \"\" => no Caddy/TLS (open the app port instead)."
  type        = string
}

variable "compose_files" {
  description = "Compose files to layer, in order (dev appends docker-compose.dev.yml)."
  type        = list(string)
}

variable "openmeteo" {
  description = "Self-host the ERA5 archive: layer docker-compose.openmeteo.yml + provision the host rclone mount."
  type        = bool
  default     = false
}

variable "om_data_dir" {
  description = "Host rclone mount point for the archive bucket (OM_DATA_DIR the overlay bind-mounts)."
  type        = string
  default     = "/mnt/om-archive"
}

variable "om_bucket_remote" {
  description = "rclone remote:path for the archive bucket (mounted at om_data_dir)."
  type        = string
  default     = ""
}

variable "om_rclone_conf" {
  description = "rclone.conf contents installed to /etc/rclone/rclone.conf. Sensitive."
  type        = string
  default     = ""
  sensitive   = true
}

variable "om_vfs_cache_max" {
  description = "rclone --vfs-cache-max-size for the mount's on-disk hot cache."
  type        = string
  default     = "80G"
}

variable "app_dir" {
  description = "Checkout path on the host."
  type        = string
}

variable "repo_root" {
  description = "Local repo root, used to hash the compose files for the re-apply trigger."
  type        = string
}

variable "repo_url" {
  description = "Git remote to clone from if the host has no checkout yet."
  type        = string
}

variable "app_port" {
  description = "Port backend binds / is health-checked on."
  type        = number
}

variable "frontend_port" {
  description = "Port the frontend SSR service binds / is health-checked on (repo-split Stage 4). Loopback-only, never opened in ufw -- reached via Caddy's path-split or backend's own reverse-proxy fallback, never directly."
  type        = number
  default     = 8080
}

# ---- Sizing -------------------------------------------------------------------
variable "workers" {
  description = "uvicorn worker count (WORKERS)."
  type        = number
}

variable "app_cpus" {
  description = "App container CPU cap (APP_CPUS)."
  type        = number
}

variable "db_cpus" {
  description = "DB container CPU cap (DB_CPUS)."
  type        = number
}

variable "db_memory" {
  description = "DB container memory cap (DB_MEMORY), e.g. \"8g\"."
  type        = string
}

variable "timescaledb_tag" {
  description = "TimescaleDB image tag (TIMESCALEDB_TAG), e.g. \"2.17.2-pg18\". \"latest-pg18\" (the default) matches today's behavior; pin an exact minor before any host could ever replicate with another."
  type        = string
  default     = "latest-pg18"
}

# Secrets (POSTGRES_PASSWORD, THERMOGRAPH_AUTH_SECRET, VAPID keys, REGISTRY_TOKEN,
# Discord/SMTP credentials, ...) are no longer Terraform variables -- they're
# rendered at deploy time from the SOPS+age vault (deploy/secrets/*.yaml) by
# deploy/render-secrets.sh, which deploy.sh calls. See main.tf's remote-exec step 3.