MarketingSystemDataTool/server/internal/api/resellers.go

73 lines
2.2 KiB
Go

package api
import (
"database/sql"
"net/http"
"strconv"
"strings"
)
type ResellersAPI struct {
marketing *sql.DB
}
func ResellersHandler(marketing *sql.DB) http.Handler {
api := &ResellersAPI{marketing: marketing}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
p := strings.TrimPrefix(r.URL.Path, "/api/resellers")
if r.Method == http.MethodGet && p == "" {
api.list(w, r)
return
}
w.WriteHeader(http.StatusNotFound)
})
}
func (a *ResellersAPI) list(w http.ResponseWriter, r *http.Request) {
creatorsParam := r.URL.Query().Get("creator")
q := r.URL.Query().Get("q")
limitStr := r.URL.Query().Get("limit")
limit := 2000
if limitStr != "" {
if n, err := strconv.Atoi(limitStr); err == nil && n > 0 && n <= 10000 { limit = n }
}
creators := []string{}
for _, s := range strings.Split(creatorsParam, ",") {
s = strings.TrimSpace(s)
if s != "" { creators = append(creators, s) }
}
if len(creators) == 0 {
ok(w, r, []map[string]interface{}{})
return
}
ph := strings.Repeat("?,", len(creators))
ph = strings.TrimSuffix(ph, ",")
sql1 := "SELECT DISTINCT reseller_id, COALESCE(reseller_name,'') AS name FROM plan WHERE reseller_id IS NOT NULL AND creator IN (" + ph + ")"
args := []interface{}{}
for _, c := range creators { args = append(args, c) }
if q != "" {
sql1 += " AND (CAST(reseller_id AS CHAR) LIKE ? OR reseller_name LIKE ?)"
like := "%" + q + "%"
args = append(args, like, like)
}
sql1 += " ORDER BY reseller_id ASC LIMIT ?"
args = append(args, limit)
rows, err := a.marketing.Query(sql1, args...)
if err != nil {
fail(w, r, http.StatusInternalServerError, err.Error())
return
}
defer rows.Close()
out := []map[string]interface{}{}
for rows.Next() {
var id sql.NullInt64
var name sql.NullString
if err := rows.Scan(&id, &name); err != nil { continue }
if !id.Valid { continue }
m := map[string]interface{}{"id": id.Int64, "name": name.String}
out = append(out, m)
}
ok(w, r, out)
}