1package boards
2
3import (
4 "std"
5 "strconv"
6 "strings"
7
8 "gno.land/r/demo/users"
9)
10
11//----------------------------------------
12// private utility methods
13// XXX ensure these cannot be called from public.
14
15func getBoard(bid BoardID) *Board {
16 bidkey := boardIDKey(bid)
17 board_, exists := gBoards.Get(bidkey)
18 if !exists {
19 return nil
20 }
21 board := board_.(*Board)
22 return board
23}
24
25func incGetBoardID() BoardID {
26 gBoardsCtr++
27 return BoardID(gBoardsCtr)
28}
29
30func padLeft(str string, length int) string {
31 if len(str) >= length {
32 return str
33 } else {
34 return strings.Repeat(" ", length-len(str)) + str
35 }
36}
37
38func padZero(u64 uint64, length int) string {
39 str := strconv.Itoa(int(u64))
40 if len(str) >= length {
41 return str
42 } else {
43 return strings.Repeat("0", length-len(str)) + str
44 }
45}
46
47func boardIDKey(bid BoardID) string {
48 return padZero(uint64(bid), 10)
49}
50
51func postIDKey(pid PostID) string {
52 return padZero(uint64(pid), 10)
53}
54
55func indentBody(indent string, body string) string {
56 lines := strings.Split(body, "\n")
57 res := ""
58 for i, line := range lines {
59 if i > 0 {
60 res += "\n"
61 }
62 res += indent + line
63 }
64 return res
65}
66
67// NOTE: length must be greater than 3.
68func summaryOf(str string, length int) string {
69 lines := strings.SplitN(str, "\n", 2)
70 line := lines[0]
71 if len(line) > length {
72 line = line[:(length-3)] + "..."
73 } else if len(lines) > 1 {
74 // len(line) <= 80
75 line = line + "..."
76 }
77 return line
78}
79
80func displayAddressMD(addr std.Address) string {
81 user := users.GetUserByAddress(addr)
82 if user == nil {
83 return "[" + addr.String() + "](/r/demo/users:" + addr.String() + ")"
84 } else {
85 return "[@" + user.Name + "](/r/demo/users:" + user.Name + ")"
86 }
87}
88
89func usernameOf(addr std.Address) string {
90 user := users.GetUserByAddress(addr)
91 if user == nil {
92 return ""
93 }
94 return user.Name
95}
misc.gno
1.78 Kb ยท 95 lines
