Extend rule structure and nip rule parser (#16)

pkg/itemfilter/itemfilter_test.go

@@ -34,7 +34,7 @@ func TestEvaluate(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			rule, err := nip.ParseLine(tt.args.nipRule)
+			rule, err := nip.ParseLine(tt.args.nipRule, "dummy", 0)
 			require.NoError(t, err)
 
 			if _, got := Evaluate(tt.args.i, []nip.Rule{rule}); got != tt.want {

pkg/nip/file_reader.go

@@ -45,7 +45,7 @@ func ParseNIPFile(filePath string) ([]Rule, error) {
 	lineNumber := 0
 	for fileScanner.Scan() {
 		lineNumber++
-		rule, err := ParseLine(fileScanner.Text())
+		rule, err := ParseLine(fileScanner.Text(), filePath, lineNumber)
 		if errors.Is(err, errEmptyLine) {
 			continue
 		}

pkg/nip/nip_parser.go

@@ -14,7 +14,7 @@ var (
 	propertyNameRegex = regexp.MustCompile(`\[(.*)\]`)
 )
 
-func ParseLine(line string) (Rule, error) {
+func ParseLine(line string, filename string, linenum int) (Rule, error) {
 	line = lineCleanup(line)
 	if line == "" {
 		return Rule{}, errEmptyLine
@@ -46,6 +46,9 @@ func ParseLine(line string) (Rule, error) {
 		Properties:  properties,
 		Stats:       stats,
 		MaxQuantity: maxQuantity,
+		Filename:    filename,
+		LineNumber:  linenum,
+		Enabled:     true,
 	}, nil
 }
 

pkg/nip/nip_parser_test.go

@@ -10,7 +10,7 @@ import (
 const nipLine = "[type] == boots && [quality] == rare # [frw] >= 10 && [fireresist] >= 10 && ([lightresist]+[coldresist] >= 10 && [dexterity] >= 1 && [fireresist]+[poisonresist] >= 10) // this is a comment"
 
 func Test_parseLine(t *testing.T) {
-	rules, err := ParseLine(nipLine)
+	rules, err := ParseLine(nipLine, "dummy", 0)
 	require.NoError(t, err)
 
 	expected := Rule{

pkg/nip/rule.go

@@ -16,6 +16,9 @@ type Rule struct {
 	Properties  []Group
 	Stats       []Group
 	MaxQuantity []Group
+	Filename    string
+	LineNumber  int
+	Enabled     bool
 }
 
 type Keyword string