package documents

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

// TestParseFile verifies ParseFile loads front matter and markdown sections.
func TestParseFile(t *testing.T) {
	t.Parallel()

	repo := t.TempDir()
	path := filepath.Join(repo, "docs", "ai")
	if err := os.MkdirAll(path, 0o755); err != nil {
		t.Fatal(err)
	}

	file := filepath.Join(path, "repo-memory.md")
	content := strings.TrimSpace(`
---
title: Zeus Repo Memory
repo: zeus
---

# Repo Memory

Intro text.

## Module Map

- app/app
- gateway

## Danger Zones

- shared libs
`)
	if err := os.WriteFile(file, []byte(content), 0o644); err != nil {
		t.Fatal(err)
	}

	doc, err := ParseFile(repo, file)
	if err != nil {
		t.Fatal(err)
	}

	if got, want := doc.Title, "Zeus Repo Memory"; got != want {
		t.Fatalf("title = %q, want %q", got, want)
	}
	if got, want := doc.DocPath, "docs/ai/repo-memory.md"; got != want {
		t.Fatalf("doc path = %q, want %q", got, want)
	}
	if len(doc.Sections) != 3 {
		t.Fatalf("sections = %d, want 3", len(doc.Sections))
	}
	if got, want := doc.Sections[1].Heading, "Module Map"; got != want {
		t.Fatalf("section heading = %q, want %q", got, want)
	}
}