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package main
import (
"encoding/csv"
"fmt"
"net/http"
"strconv"
"time"
)
type datamapLine struct {
Key string `json:"key"`
Sheet string `json:"sheet"`
Cellref string `json:"cellref"`
}
type datamap struct {
Name string `json:"name"`
Description string `json:"description"`
Created time.Time `json:"created"`
DMLs []datamapLine `json:"datamap_lines"`
}
func (app *application) createDatamapHandler(w http.ResponseWriter, r *http.Request) {
// Parse the multipart form
err := r.ParseMultipartForm(10 << 20) // 10Mb max
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
// get the uploaded file
file, _, err := r.FormFile("file")
if err != nil {
http.Error(w, "Missing file", http.StatusBadRequest)
return
}
defer file.Close()
// parse the csv
reader := csv.NewReader(file)
var dmls []datamapLine
var dm datamap
for {
line, err := reader.Read()
if err != nil {
if err.Error() == "EOF" {
break // end of file
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if len(line) != 3 {
http.Error(w, "Invalid CSV Format", http.StatusBadRequest)
return
}
dmls = append(dmls, datamapLine{
Key: line[0],
Sheet: line[1],
Cellref: line[2],
})
}
dm = datamap{Name: "test-datamap", Description: "test description", Created: time.Now(), DMLs: dmls}
err = app.writeJSON(w, http.StatusOK, dm, nil)
if err != nil {
app.logger.Debug("writing out csv", "err", err)
http.Error(w, "Cannot write output from parsed CSV", http.StatusInternalServerError)
return
}
// fmt.Fprintf(w, "file successfully uploaded")
}
func (app *application) showDatamapHandler(w http.ResponseWriter, r *http.Request) {
id := r.PathValue("id")
app.logger.Info("the id requested", "id", id)
id_int, err := strconv.ParseInt(id, 10, 64)
if err != nil || id_int < 1 {
http.NotFound(w, r)
return
}
fmt.Fprintf(w, "show the details for datamap %d\n", id_int)
}
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