# ─────────────────────────────────────────────────────────────────────────────
# Docker stack unit tests — run with: tofu test (from repo root)
# Requires OpenTofu >= 1.7.0 (mock_provider support)
#
# All providers are mocked — no real Docker host needed.
# Tests cover: variable validation, plan structure, source type modes.
# ─────────────────────────────────────────────────────────────────────────────

mock_provider "docker" {}

# ─── Shared baseline variables ────────────────────────────────────────────────
# Every run block below can override individual values.

variables {
  ssh_host     = "test-host.example.com"
  ssh_user     = "deploy"
  ssh_key_path = "/tmp/test-key"

  app_name    = "testapp"
  environment = "dev"

  openresty_source_type        = "bind_mount"
  openresty_remote_config_path = "/opt/apps/testapp/openresty"
  openresty_external_port      = 8080

  db_name     = "testdb"
  db_user     = "testuser"
  db_password = "test-secret"
}

# ─── Smoke tests: valid configurations plan without error ─────────────────────

run "valid_dev_bind_mount" {
  command = plan
  # Verifies the baseline dev/bind_mount config produces a valid plan.
}

run "valid_prod_bind_mount" {
  command = plan
  variables {
    environment = "prod"
  }
}

run "valid_git_clone_with_tag" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_repo    = "https://gitea.example.com/org/myapp.git"
    openresty_git_ref     = "v2.1.0"
  }
}

run "valid_git_clone_with_commit_sha" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_repo    = "https://gitea.example.com/org/myapp.git"
    openresty_git_ref     = "a3f8c1d2e4b56789abcdef0123456789abcdef01"
  }
}

run "valid_local_build" {
  command = plan
  variables {
    openresty_source_type         = "local_build"
    openresty_local_build_context = "./openresty"
    openresty_dockerfile          = "Dockerfile"
  }
}

# ─── Validation: git_ref must not be a mutable branch name ───────────────────

run "reject_git_ref_main" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_repo    = "https://gitea.example.com/org/myapp.git"
    openresty_git_ref     = "main"
  }
  expect_failures = [var.openresty_git_ref]
}

run "reject_git_ref_master" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_ref     = "master"
  }
  expect_failures = [var.openresty_git_ref]
}

run "reject_git_ref_develop" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_ref     = "develop"
  }
  expect_failures = [var.openresty_git_ref]
}

run "reject_git_ref_HEAD" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_ref     = "HEAD"
  }
  expect_failures = [var.openresty_git_ref]
}

run "reject_git_ref_latest" {
  command = plan
  variables {
    openresty_source_type = "git_clone"
    openresty_git_ref     = "latest"
  }
  expect_failures = [var.openresty_git_ref]
}

# ─── Validation: environment must be 'prod' or 'dev' ─────────────────────────

run "reject_environment_staging" {
  command = plan
  variables {
    environment = "staging"
  }
  expect_failures = [var.environment]
}

run "reject_environment_production" {
  command = plan
  variables {
    environment = "production"
  }
  expect_failures = [var.environment]
}

# ─── Validation: openresty_source_type must be one of the three modes ─────────

run "reject_invalid_source_type" {
  command = plan
  variables {
    openresty_source_type = "s3_bucket"
  }
  expect_failures = [var.openresty_source_type]
}