91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
// ingestion/internal/wiki/inventory.go
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package wiki
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import (
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"bufio"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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)
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// LoadInventory walks brain/wiki/ and returns all pages grouped by type.
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// Missing subdirectories are silently skipped.
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func LoadInventory(brainDir string) (map[PageType][]Entry, error) {
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result := map[PageType][]Entry{
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PageTypeConcept: {},
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PageTypeEntity: {},
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PageTypeSource: {},
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}
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for pt := range result {
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dir := filepath.Join(brainDir, "wiki", string(pt))
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entries, err := os.ReadDir(dir)
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if os.IsNotExist(err) {
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continue
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}
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if err != nil {
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return nil, fmt.Errorf("read dir %s: %w", dir, err)
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}
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for _, e := range entries {
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if e.IsDir() || !strings.HasSuffix(e.Name(), ".md") {
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continue
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}
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slug := strings.TrimSuffix(e.Name(), ".md")
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path := filepath.Join(dir, e.Name())
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title, aliases := readFrontmatter(path, slug)
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result[pt] = append(result[pt], Entry{Slug: slug, Title: title, Aliases: aliases, Type: pt})
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}
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}
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return result, nil
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}
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// readFrontmatter extracts title and aliases from YAML frontmatter.
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// Falls back to slug for title and empty aliases on any error.
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func readFrontmatter(path, fallbackSlug string) (title string, aliases []string) {
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title = fallbackSlug
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f, err := os.Open(path)
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if err != nil {
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return
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}
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defer f.Close() //nolint:errcheck
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scanner := bufio.NewScanner(f)
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inFM := false
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inAliases := false
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for scanner.Scan() {
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line := scanner.Text()
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if strings.TrimSpace(line) == "---" {
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if !inFM {
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inFM = true
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continue
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}
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break // end of frontmatter
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}
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if !inFM {
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continue
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}
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// Detect alias list items (lines starting with " - ").
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if inAliases {
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trimmed := strings.TrimSpace(line)
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if strings.HasPrefix(trimmed, "- ") {
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aliases = append(aliases, strings.TrimPrefix(trimmed, "- "))
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continue
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}
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inAliases = false // end of alias block
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}
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key, val, ok := strings.Cut(line, ":")
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if !ok {
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continue
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}
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switch strings.TrimSpace(key) {
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case "title":
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title = strings.Trim(strings.TrimSpace(val), `"'`)
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case "aliases":
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inAliases = true
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}
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}
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return
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}
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