package config

import (
	"os"
	"path/filepath"
	"testing"
)

// TestLoadFailsOnMissingFile runs one orchestration or CLI step.
// Signature: TestLoadFailsOnMissingFile(t *testing.T).
// Why: covers file-read failure handling for config load path.
func TestLoadFailsOnMissingFile(t *testing.T) {
	if _, err := Load(filepath.Join(t.TempDir(), "missing.yaml")); err == nil {
		t.Fatalf("expected missing file error")
	}
}

// TestLoadFailsOnBadYAML runs one orchestration or CLI step.
// Signature: TestLoadFailsOnBadYAML(t *testing.T).
// Why: covers YAML decode failure handling for config load path.
func TestLoadFailsOnBadYAML(t *testing.T) {
	cfgPath := filepath.Join(t.TempDir(), "ananke.yaml")
	if err := os.WriteFile(cfgPath, []byte(":\n- invalid"), 0o644); err != nil {
		t.Fatalf("write bad config: %v", err)
	}
	if _, err := Load(cfgPath); err == nil {
		t.Fatalf("expected decode error")
	}
}

// TestLoadFailsValidationOnBrokenValues runs one orchestration or CLI step.
// Signature: TestLoadFailsValidationOnBrokenValues(t *testing.T).
// Why: covers Load->Validate error propagation.
func TestLoadFailsValidationOnBrokenValues(t *testing.T) {
	cfgPath := filepath.Join(t.TempDir(), "ananke.yaml")
	raw := `
control_planes: [titan-0a]
expected_flux_branch: main
expected_flux_source_url: ssh://git@scm.bstein.dev:2242/bstein/titan-iac.git
iac_repo_path: /opt/titan-iac
startup:
  service_checklist:
    - name: x
      url: https://ok.example
      timeout_seconds: 0
`
	if err := os.WriteFile(cfgPath, []byte(raw), 0o644); err != nil {
		t.Fatalf("write config: %v", err)
	}
	if _, err := Load(cfgPath); err == nil {
		t.Fatalf("expected validation failure")
	}
}

// TestLoadKeepsExplicitServiceChecklist runs one orchestration or CLI step.
// Signature: TestLoadKeepsExplicitServiceChecklist(t *testing.T).
// Why: host recovery configs must be able to keep a narrow, explicit checklist
// without silently inheriting the full default service catalog.
func TestLoadKeepsExplicitServiceChecklist(t *testing.T) {
	cfgPath := filepath.Join(t.TempDir(), "ananke.yaml")
	raw := `
control_planes: [titan-0a]
expected_flux_branch: main
expected_flux_source_url: ssh://git@scm.bstein.dev:2242/bstein/titan-iac.git
iac_repo_path: /opt/titan-iac
startup:
  service_checklist_explicit_only: true
  service_checklist:
    - name: gitea-api
      url: https://scm.bstein.dev/api/healthz
      accepted_statuses: [200]
      body_contains: pass
      timeout_seconds: 12
ups:
  enabled: false
`
	if err := os.WriteFile(cfgPath, []byte(raw), 0o644); err != nil {
		t.Fatalf("write config: %v", err)
	}

	cfg, err := Load(cfgPath)
	if err != nil {
		t.Fatalf("load config: %v", err)
	}
	if len(cfg.Startup.ServiceChecklist) != 1 {
		t.Fatalf("expected 1 explicit service check, got %d", len(cfg.Startup.ServiceChecklist))
	}
	if cfg.Startup.ServiceChecklist[0].Name != "gitea-api" {
		t.Fatalf("expected explicit gitea-api check, got %q", cfg.Startup.ServiceChecklist[0].Name)
	}
}