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package putils
import (
"reflect"
"github.com/pterm/pterm"
)
// TableFromStructSlice accepts a customized table printer and and a slice of a struct.
// The table will be populated with the values of the structs. The header will be set to the structs field name.
// Use .WithHasHeader() to color the header.
// The function will return the populated pterm.TablePrinter.
func TableFromStructSlice(tablePrinter pterm.TablePrinter, structSlice interface{}) *pterm.TablePrinter {
to := reflect.TypeOf(structSlice)
if to.Kind() != reflect.Slice {
return &tablePrinter
}
el := to.Elem()
isPointer := false
if el.Kind() == reflect.Ptr {
el = el.Elem()
isPointer = true
}
if el.Kind() != reflect.Struct {
return &tablePrinter
}
numFields := el.NumField()
fieldNames := make([]string, numFields)
for i := 0; i < numFields; i++ {
fieldNames[i] = el.Field(i).Name
}
records := pterm.TableData{
fieldNames,
}
obj := reflect.ValueOf(structSlice)
items := make([]interface{}, obj.Len())
for i := 0; i < obj.Len(); i++ {
if isPointer {
items[i] = obj.Index(i).Elem().Interface()
} else {
items[i] = obj.Index(i).Interface()
}
}
for _, v := range items {
item := reflect.ValueOf(v)
record := make([]string, numFields)
for i := 0; i < numFields; i++ {
fieldVal := item.Field(i).Interface()
record[i] = pterm.Sprintf("%v", fieldVal)
}
records = append(records, record)
}
tablePrinter.Data = records
return &tablePrinter
}
// DefaultTableFromStructSlice will be populate the pterm.DefaultTable with the values of the structs. The header will be set to the structs field name.
// Use .WithHasHeader() to color the header.
// The function will return the populated pterm.TablePrinter.
func DefaultTableFromStructSlice(structSlice interface{}) *pterm.TablePrinter {
return TableFromStructSlice(pterm.DefaultTable, structSlice)
}
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