narratio/internal/config/session_template_test.go

package config

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

func TestLoadSessionWithOptionsRendersCompactPlaceholder(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: "{{session_id}}"
campaign: sample-campaign
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	cfg, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{SessionID: "2026-04-04"})
	if err != nil {
		t.Fatalf("LoadSessionWithOptions() error = %v", err)
	}
	if cfg.SessionID != "2026-04-04" {
		t.Fatalf("SessionID = %q, want 2026-04-04", cfg.SessionID)
	}
}

func TestLoadSessionWithOptionsRendersSpacedPlaceholder(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: "{{ session_id }}"
campaign: sample-campaign
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	cfg, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{SessionID: "2026-04-04"})
	if err != nil {
		t.Fatalf("LoadSessionWithOptions() error = %v", err)
	}
	if cfg.SessionID != "2026-04-04" {
		t.Fatalf("SessionID = %q, want 2026-04-04", cfg.SessionID)
	}
}

func TestLoadSessionWithOptionsUnresolvedPlaceholderFails(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: "{{ session_id }}"
campaign: sample-campaign
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	_, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{})
	if err == nil {
		t.Fatal("expected error, got nil")
	}
	if !strings.Contains(err.Error(), "unresolved template variable") {
		t.Fatalf("error = %q, want unresolved-variable context", err.Error())
	}
	if !strings.Contains(err.Error(), "session_id") {
		t.Fatalf("error = %q, want session_id variable", err.Error())
	}
}

func TestLoadSessionWithOptionsMismatchFails(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: 2026-05-03
campaign: sample-campaign
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	_, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{SessionID: "2026-04-04"})
	if err == nil {
		t.Fatal("expected error, got nil")
	}
	if !strings.Contains(err.Error(), "session_id mismatch") {
		t.Fatalf("error = %q, want mismatch context", err.Error())
	}
}

func TestLoadSessionWithOptionsUnknownFieldStillRejectedAfterRendering(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: "{{ session_id }}"
campaign: sample-campaign
unknown_field: true
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	_, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{SessionID: "2026-04-04"})
	if err == nil {
		t.Fatal("expected error, got nil")
	}
	if !strings.Contains(err.Error(), "strict decode failed") {
		t.Fatalf("error = %q, want strict-decode context", err.Error())
	}
}

func TestLoadSessionWithOptionsConcreteSessionStillLoads(t *testing.T) {
	dir := t.TempDir()
	sessionPath := filepath.Join(dir, "session.yml")
	sessionYAML := `session_id: 2026-05-03
campaign: sample-campaign
inputs:
  audio_dir: ./audio
  speakers_file: ./speakers.yml
  autocorrect_file: ./autocorrect.yml
  glossary_file: ./glossary.yml
`
	if err := os.WriteFile(sessionPath, []byte(sessionYAML), 0o644); err != nil {
		t.Fatalf("write session.yml: %v", err)
	}

	cfg, err := LoadSessionWithOptions(sessionPath, SessionLoadOptions{})
	if err != nil {
		t.Fatalf("LoadSessionWithOptions() error = %v", err)
	}
	if cfg.SessionID != "2026-05-03" {
		t.Fatalf("SessionID = %q, want 2026-05-03", cfg.SessionID)
	}
}