66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package pipe
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import (
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"fmt"
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"io"
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"text/tabwriter"
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)
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const (
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minWidth = 0
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tabWidth = 4
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padding = 4
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flags = 0
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)
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// TextReport report generator.
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type TextReport struct {
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w io.Writer
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}
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// NewTextReport returns a TextReport report generator.
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func NewTextReport(w io.Writer) *TextReport {
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return &TextReport{w: w}
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}
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// Consume generates a text report.
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func (t *TextReport) Consume(records Iterator) error {
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w := tabwriter.NewWriter(t.w, minWidth, tabWidth, padding, ' ', flags)
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fmt.Fprintf(w, "DOMAINS\tPAGES\tVISITS\tUNIQUES\n")
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fmt.Fprintf(w, "-------\t-----\t------\t-------\n")
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var total record
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printLine := func(r Record) error {
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total = r.sum(total)
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fmt.Fprintf(w, "%s\t%s\t%d\t%d\n",
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r.domain, r.page,
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r.visits, r.uniques,
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)
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return nil
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}
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if err := records.Each(printLine); err != nil {
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return err
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}
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fmt.Fprintf(w, "\t\t\t\n")
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fmt.Fprintf(w, "%s\t%s\t%d\t%d\n", "TOTAL", "",
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total.visits,
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total.uniques,
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)
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return w.Flush()
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}
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