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feat: simplify
boards2 implementation (#3115)
Refactors the code copied from `gno.land/r/demo/boards` to simplify it and to have it ready before introducing the new features.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,54 @@ | ||
| package boards | ||
|
|
||
| import ( | ||
| "regexp" | ||
| import "gno.land/p/demo/avl" | ||
|
|
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| "gno.land/p/demo/avl" | ||
| ) | ||
|
|
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| //---------------------------------------- | ||
| // Realm (package) state | ||
| // Default minimum fee in ugnot required for anonymous users | ||
| const defaultAnonymousFee = 100_000_000 | ||
|
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| var ( | ||
| gBoards avl.Tree // id -> *Board | ||
| gBoardsCtr int // increments Board.id | ||
| gBoardsByName avl.Tree // name -> *Board | ||
| gDefaultAnonFee = 100000000 // minimum fee required if anonymous | ||
| gLastBoardID BoardID | ||
| gBoardsByID avl.Tree // string(id) -> *Board | ||
| gBoardsByName avl.Tree // string(name) -> *Board | ||
| ) | ||
|
|
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| //---------------------------------------- | ||
| // Constants | ||
| // incGetBoardID returns a new board ID. | ||
| func incGetBoardID() BoardID { | ||
| gLastBoardID++ | ||
| return gLastBoardID | ||
| } | ||
|
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| // getBoard returns a board for a specific ID. | ||
| func getBoard(id BoardID) (_ *Board, found bool) { | ||
| v, exists := gBoardsByID.Get(id.Key()) | ||
| if !exists { | ||
| return nil, false | ||
| } | ||
| return v.(*Board), true | ||
| } | ||
|
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| // mustGetBoard returns a board or panics when it's not found. | ||
| func mustGetBoard(id BoardID) *Board { | ||
| board, found := getBoard(id) | ||
| if !found { | ||
| panic("board does not exist with ID: " + id.String()) | ||
| } | ||
| return board | ||
| } | ||
|
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| // mustGetThread returns a thread or panics when it's not found. | ||
| func mustGetThread(board *Board, threadID PostID) *Post { | ||
| thread, found := board.GetThread(threadID) | ||
| if !found { | ||
| panic("thread does not exist with ID: " + threadID.String()) | ||
| } | ||
| return thread | ||
| } | ||
|
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| var reName = regexp.MustCompile(`^[a-z]+[_a-z0-9]{2,29}$`) | ||
| // mustGetReply returns a reply or panics when it's not found. | ||
| func mustGetReply(thread *Post, replyID PostID) *Post { | ||
| reply, found := thread.GetReply(replyID) | ||
| if !found { | ||
| panic("reply does not exist with ID: " + replyID.String()) | ||
| } | ||
| return reply | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package boards | ||
|
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| import ( | ||
| "std" | ||
| "strconv" | ||
| "strings" | ||
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| "gno.land/r/demo/users" | ||
| ) | ||
|
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| func padLeft(s string, length int) string { | ||
| if len(s) >= length { | ||
| return s | ||
| } | ||
| return strings.Repeat(" ", length-len(s)) + s | ||
| } | ||
|
|
||
| func padZero(u64 uint64, length int) string { | ||
| s := strconv.Itoa(int(u64)) | ||
| if len(s) >= length { | ||
| return s | ||
| } | ||
| return strings.Repeat("0", length-len(s)) + s | ||
| } | ||
|
|
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| func indentBody(indent string, body string) string { | ||
| var ( | ||
| res string | ||
| lines = strings.Split(body, "\n") | ||
| ) | ||
| for i, line := range lines { | ||
| if i > 0 { | ||
| res += "\n" | ||
| } | ||
| res += indent + line | ||
| } | ||
| return res | ||
| } | ||
|
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| // NOTE: length must be greater than 3. | ||
| func summaryOf(text string, length int) string { | ||
| lines := strings.SplitN(text, "\n", 2) | ||
| line := lines[0] | ||
| if len(line) > length { | ||
| line = line[:(length-3)] + "..." | ||
| } else if len(lines) > 1 { | ||
| // len(line) <= 80 | ||
| line = line + "..." | ||
| } | ||
| return line | ||
| } | ||
|
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| // newLink returns a Markdown link. | ||
| func newLink(label, uri string) string { | ||
| return "[" + label + "](" + uri + ")" | ||
| } | ||
|
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| // newUserLink returns a Markdown link for an account to the users realm. | ||
| func newUserLink(addr std.Address) string { | ||
| user := users.GetUserByAddress(addr) | ||
| if user == nil { | ||
| return newLink(addr.String(), "/r/demo/users:"+addr.String()) | ||
| } | ||
| return newLink("@"+user.Name, "/r/demo/users:"+user.Name) | ||
| } |
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