Move everything to backend

backend/utils.go

@@ -0,0 +1,116 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+	"time"
+)
+
+func BuildWhereQuery(params interface{}) string {
+	conditions := []string{}
+	v := reflect.ValueOf(params)
+	t := v.Type()
+
+	for i := 0; i < v.NumField(); i++ {
+		field := v.Field(i)
+		if field.Kind() == reflect.Ptr && !field.IsNil() {
+			dbTag := t.Field(i).Tag.Get("db")
+			if dbTag != "" {
+				switch field.Elem().Kind() {
+				case reflect.String:
+					conditions = append(conditions, fmt.Sprintf("%s = '%s'", dbTag, field.Elem().String()))
+				case reflect.Bool:
+					conditions = append(conditions, fmt.Sprintf("%s = %t", dbTag, field.Elem().Bool()))
+				case reflect.Int:
+					conditions = append(conditions, fmt.Sprintf("%s = %d", dbTag, field.Elem().Int()))
+				case reflect.Int64:
+					conditions = append(conditions, fmt.Sprintf("%s = %d", dbTag, field.Elem().Int()))
+				}
+			}
+		}
+	}
+
+	if len(conditions) > 0 {
+		return "WHERE " + strings.Join(conditions, " AND ")
+	}
+	return ""
+}
+
+var associationRe = regexp.MustCompile(`r:(\w+)(?:\(([^)]+)\))?`)
+func ParseNote(data string) (NoteData, error) {
+	res := NoteData{}
+	lines := strings.Split(data, "\n")
+	note := []string{}
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+		parts := strings.Split(line, ":")
+		switch parts[0] {
+		case "p":
+			res.Player = parts[1]
+		case "d":
+			var err error
+			res.Date, err = time.Parse(time.DateOnly, parts[1])
+			if err != nil {
+				return res, fmt.Errorf("failed to parse date: %v", err)
+			}
+		case "g":
+			res.Guild = parts[1]
+		default:
+			note = append(note, line)
+		}
+	}
+	res.Note = strings.Join(note, "\n")
+
+	matches := associationRe.FindAllStringSubmatch(res.Note, -1)
+	for _, match := range matches {
+		res.Associations = append(res.Associations, NoteAssociationData{
+			Player: match[1],
+			Note:   match[2],
+		})
+	}
+
+	return res, nil
+}
+
+func PersistNoteData(note NoteData) (Note, []Association, error) {
+	res := Note{}
+	ass := []Association{}
+
+	res.Content = note.Note
+	res.Timestamp = note.Date
+	guild, err := gs.GetOrCreate(note.Guild)
+	if err != nil {
+		return res, ass, fmt.Errorf("failed getting guild for %s: %v", note.Guild, err)
+	}
+
+	player, err := ps.GetOrCreate(note.Player, guild)
+	if err != nil {
+		return res, ass, fmt.Errorf("failed getting player for %s: %v", note.Player, err)
+	}
+	res.Player = player
+	player.Guild = guild
+
+	for _, assoc := range note.Associations {
+		assocPlayer, err := ps.GetOrCreate(assoc.Player, guild)
+		if err != nil {
+			return res, ass, fmt.Errorf("failed getting player for %s: %v", assoc.Player, err)
+		}
+		association, err := as.Create(player, assocPlayer, assoc.Note)
+		if err != nil {
+			return res, ass, fmt.Errorf("failed creating association: %v", err)
+		}
+		ass = append(ass, association)
+	}
+
+	res, err = ns.Create(res.Content, res.Timestamp, res.Player)
+	if err != nil {
+		return res, ass, fmt.Errorf("failed creating note: %v", err)
+	}
+
+	return res, ass, nil
+}