validation.gno

 1package blueprint
 2
 3import (
 4	"strconv"
 5	"strings"
 6	"unicode/utf8"
 7)
 8
 9func assertBlueprintName(name string) {
10	if len(name) == 0 {
11		panic("name cannot be empty")
12	}
13	if utf8.RuneCountInString(name) > 100 {
14		panic("name too long (max 100)")
15	}
16
17	trimmed := strings.TrimSpace(name)
18	if len(trimmed) == 0 {
19		panic("name cannot be only whitespace")
20	}
21	if name != trimmed {
22		panic("name cannot have leading or trailing whitespace")
23	}
24
25	for _, ch := range name {
26		if ch < 0x20 {
27			panic("name cannot contain control characters")
28		}
29	}
30}
31
32func assertBiomeName(biomeName string) {
33	if biomeName == "" {
34		panic("biome name cannot be empty")
35	}
36}
37
38func assertBlueprintSize(size string) {
39	if size != "1" && size != "3" {
40		panic("invalid blueprint size")
41	}
42}
43
44func assertChunkKey(chunkKey string) {
45	if chunkKey == "" {
46		panic("chunkKey must not be empty")
47	}
48	if utf8.RuneCountInString(chunkKey) > 256 {
49		panic("chunkKey too long (max 256)")
50	}
51	for _, ch := range chunkKey {
52		if ch < 0x20 {
53			panic("chunkKey cannot contain control characters")
54		}
55	}
56}
57
58func assertCreationCost(cost int64) {
59	if cost < 0 {
60		panic("creationCost must be non-negative")
61	}
62}
63
64func assertListLimit(field string, count int) {
65	if count > listLimit {
66		panic(field + " exceeds listLimit (max: " + strconv.Itoa(listLimit) + ")")
67	}
68}
69
70func assertListPageCount(page int, count int) {
71	if page < 1 {
72		panic("page must be at least 1")
73	}
74	if count < 1 {
75		panic("count must be at least 1")
76	}
77	assertListLimit("count", count)
78}
79
80func assertBatchLimit(field string, count int) {
81	if count > batchLimit {
82		panic(field + " exceeds batchLimit (max: " + strconv.Itoa(batchLimit) + ")")
83	}
84}
85
86func assertExactPayment(expected int64, actual int64) {
87	if actual != expected {
88		panic("exact payment required: expected " + strconv.FormatInt(expected, 10) + ", got " + strconv.FormatInt(actual, 10))
89	}
90}