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package reader
import (
"encoding/csv"
"fmt"
"io"
"io/ioutil"
"strings"
"github.com/tealeg/xlsx"
)
//DatamapLine - a line from the datamap.
type DatamapLine struct {
Key string
Sheet string
Cellref string
}
type fileError struct {
file string
msg string
}
func (e *fileError) Error() string {
return fmt.Sprintf("%s", e.msg)
}
//Keylens returns the length of a key
func Keylens(dml DatamapLine) (int, int) {
return len(dml.Key), len(dml.Sheet)
}
//ReadDML returns a pointer to a slice of DatamapLine structs
func ReadDML(path string) (*[]DatamapLine, error) {
var s []DatamapLine
data, err := ioutil.ReadFile(path)
if err != nil {
return &s, &fileError{path, "Cannot open."}
}
r := csv.NewReader(strings.NewReader(string(data)))
for {
record, err := r.Read()
if err == io.EOF {
break
}
if err != nil {
fmt.Printf("Cannot read line %s, ", err)
}
if record[0] == "cell_key" {
// this must be the header
continue
}
dml := DatamapLine{
Key: strings.Trim(record[0], " "),
Sheet: strings.Trim(record[1], " "),
Cellref: strings.Trim(record[2], " ")}
s = append(s, dml)
// fmt.Printf("Key: %s; sheet: %s cellref: %s\n", dml.Key, dml.Sheet, dml.Cellref)
// klen, slen := Keylens(dml)
// fmt.Printf("Key length: %d\n", klen)
// fmt.Printf("Sheet length: %d\n\n", slen)
}
return &s, nil
}
//ReadXLSX reads an XLSX file
func ReadXLSX(excelFileName string) {
xlFile, err := xlsx.OpenFile(excelFileName)
if err != nil {
fmt.Printf("Cannot open %s", excelFileName)
}
for _, sheet := range xlFile.Sheets {
for _, row := range sheet.Rows {
for _, cell := range row.Cells {
text := cell.String()
fmt.Printf("Sheet: %s\nValue: %s\n", sheet.Name, text)
}
}
}
}
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