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package table
import (
"fmt"
"strconv"
"strings"
"github.com/buger/goterm"
"github.com/fatih/color"
)
type row []string
type formatFunc func(format string, args ...any) string
type Table struct {
headers []string
rows []row
lengths []int // Max length of each col
sheaderf formatFunc // For colored output
sprintf formatFunc // For colored output
err error
}
func New() *Table {
return &Table{
sprintf: fmt.Sprintf,
sheaderf: fmt.Sprintf,
}
}
func (t *Table) WithColor(col *color.Color) *Table {
return t.WithHeaderColor(col).WithBaseColor(col)
}
func (t *Table) WithHeaderColor(col *color.Color) *Table {
t.sheaderf = col.Sprintf
return t
}
func (t *Table) WithBaseColor(col *color.Color) *Table {
t.sprintf = col.Sprintf
return t
}
func (t *Table) Header(args ...any) *Table {
t.headers = make([]string, 0, len(args))
t.lengths = make([]int, 0, len(args))
for _, arg := range args {
strVal := val(arg)
t.headers = append(t.headers, strVal)
t.lengths = append(t.lengths, len(strVal))
}
return t
}
func (t *Table) Row(args ...any) *Table {
t.addRow(vals(args...)...)
return t
}
func (t *Table) TextBox(text string) *Table {
maxLen := goterm.Width() - 4
words := strings.Split(text, "\n")
var result []string
for _, line := range words {
var currentLine string
for _, word := range strings.Fields(line) {
if len(currentLine)+len(word)+1 <= maxLen {
if len(currentLine) > 0 {
currentLine += " "
}
currentLine += word
} else {
if len(currentLine) > 0 {
result = append(result, currentLine)
}
currentLine = word
}
}
if len(currentLine) > 0 {
result = append(result, currentLine)
}
}
for _, line := range result {
t.addRow(line)
}
return t
}
func (t *Table) addRow(row ...string) {
if len(row) != len(t.headers) {
t.err = fmt.Errorf("Table row (%v) not same length as table headers (%v)", row, t.headers)
}
if t.err != nil {
return
}
for i, strVal := range row {
if t.lengths[i] < len(strVal) {
t.lengths[i] = len(strVal)
}
}
t.rows = append(t.rows, row)
}
func (t *Table) MustRender() {
if err := t.Render(); err != nil {
panic(err)
}
}
func (t *Table) Render() error {
if len(t.headers) == 0 {
return fmt.Errorf("no headers")
}
if len(t.rows) == 0 {
return fmt.Errorf("no rows")
}
if t.err != nil {
return t.err
}
fmt.Print(newRender(t).String())
return nil
}
func val(val any) string {
switch v := val.(type) {
case int:
return strconv.Itoa(v)
case float64:
return fmt.Sprintf("%0.2f", v)
case string:
return v
default:
return fmt.Sprintf("%v", v)
}
}
func vals(vals ...any) []string {
strVals := make([]string, 0, len(vals))
for _, v := range vals {
strVals = append(strVals, val(v))
}
return strVals
}
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