move: log parsers

logparser/functional/textwriter.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"sort"
+	"strings"
+)
+
+// TODO: sort by result key interfaces section
+
+const (
+
+	//          DOMAINS PAGES VISITS UNIQUES
+	//             ^      ^     ^    ^
+	//             |      |     |    |
+	header     = "%-25s %-10s %10s %10s\n"
+	line       = "%-25s %-10s %10d %10d\n"
+	footer     = "\n%-36s %10d %10d\n" // -> "" VISITS UNIQUES
+	dash       = "-"
+	dashLength = 58
+)
+
+func textWriter(w io.Writer) outputFn {
+	return func(res []result) error {
+		sort.Slice(res, func(i, j int) bool {
+			return res[i].domain > res[j].domain
+		})
+
+		var total result
+
+		fmt.Fprintf(w, header, "DOMAINS", "PAGES", "VISITS", "UNIQUES")
+		fmt.Fprintf(w, strings.Repeat(dash, dashLength)+"\n")
+
+		for _, r := range res {
+			total = total.add(r)
+			fmt.Fprintf(w, line, r.domain, r.page, r.visits, r.uniques)
+		}
+
+		fmt.Fprintf(w, footer, "", total.visits, total.uniques)
+
+		return nil
+	}
+}
+
+func noWhere() outputFn {
+	return func(res []result) error {
+		return nil
+	}
+}