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reporter_table.go
133 lines (104 loc) · 2.13 KB
/
reporter_table.go
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package repository
import (
"fmt"
"github.com/jedib0t/go-pretty/v6/table"
)
type TableReporter struct {
cols int
summarise []int
sums []sumHelper
currentTable int
Tables []table.Writer
}
func NewTableReporter() *TableReporter {
return &TableReporter{
currentTable: -1,
}
}
func (tr *TableReporter) AddHeader(q ReportQuery, columns []string) error {
t := table.NewWriter()
t.SetTitle(q.Name)
t.SetStyle(table.StyleLight)
tr.Tables = append(tr.Tables, t)
tr.currentTable++
tr.cols = len(columns)
tr.summarise = q.Summarise
tr.sums = make([]sumHelper, len(q.Summarise))
var header table.Row
for _, name := range columns {
header = append(header, name)
}
tr.Tables[tr.currentTable].AppendHeader(header)
return nil
}
func (tr *TableReporter) AddRow(values []any) error {
if tr.currentTable < 0 {
return fmt.Errorf("no current table")
}
var row table.Row
for _, v := range values {
row = append(row, v)
}
for i, n := range tr.summarise {
if n >= len(values) {
return fmt.Errorf("summarise column %d out of bounds", n)
}
tr.sums[i].Add(values[n])
}
tr.Tables[tr.currentTable].AppendRow(row)
return nil
}
func (tr *TableReporter) QueryDone() error {
if len(tr.summarise) == 0 {
return nil
}
row := make([]any, tr.cols)
for i := 0; i < len(row); i++ {
row[i] = ""
}
for i, n := range tr.summarise {
row[n] = tr.sums[i].Sum()
}
tr.Tables[tr.currentTable].AppendFooter(row)
return nil
}
type sumHelper struct {
vI int64
vF float64
isFloat bool
}
func (h *sumHelper) Add(v any) {
switch vv := v.(type) {
case int:
h.vI += int64(vv)
case int8:
h.vI += int64(vv)
case int16:
h.vI += int64(vv)
case int32:
h.vI += int64(vv)
case int64:
h.vI += vv
case uint8:
h.vI += int64(vv)
case uint16:
h.vI += int64(vv)
case uint32:
h.vI += int64(vv)
case uint64:
// TODO: Yeah, but this won't be used for that large numbers...
h.vI += int64(vv)
case float32:
h.isFloat = true
h.vF += float64(vv)
case float64:
h.isFloat = true
h.vF += vv
}
}
func (h *sumHelper) Sum() any {
if h.isFloat {
return h.vF + float64(h.vI)
}
return h.vI
}