1 files changed, 69 insertions, 0 deletions
diff --git a/local/index.go b/local/index.go
new file mode 100644
index 0000000..a90276e
--- /dev/null
+++ b/local/index.go
@@ -0,0 +1,69 @@
+package local
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+var pageIndex map[string]PageList
+
+func (p *Page) RebuildIndex() error {
+	pageIndex = nil
+	_, err := p.Index()
+	return err
+}
+
+// Index returns a map of all pages below the current Page's Path seperated
+// into their respective tags If a Page has multiple tags it will be listed
+// under each
+func (p *Page) Index() (map[string]PageList, error) {
+	if pageIndex != nil {
+		return pageIndex, nil
+	}
+	fmt.Fprintln(os.Stderr, "Rebuilding index...")
+
+	out := make(map[string]PageList)
+
+	var pageErr error
+
+	filepath.Walk(filepath.Dir(p.Path),
+		func(path string, info os.FileInfo, err error) error {
+			if err != nil {
+				return err
+			}
+
+			if !info.IsDir() && strings.HasSuffix(info.Name(), ".md") {
+
+				p2 := &Page{Path: strings.ReplaceAll(path, ".md", "")}
+				err = p2.Read()
+
+				if err != nil {
+					pageErr = err
+					fmt.Fprintln(os.Stderr, "Error encountered: ", err)
+					return err
+				}
+
+				for tag, _ := range p2.Tags {
+					if _, ok := out[tag]; !ok {
+						out[tag] = []*Page{p2}
+					} else {
+						out[tag] = append(out[tag], p2)
+					}
+				}
+
+			}
+
+			return nil
+		})
+
+	pageIndex = out
+
+	return out, nil
+}
+
+func (p *Page) Time() time.Time {
+	return p.Date.Time
+}