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added options align and width, which control display. now text can be left or center aligned. default is center. fixed issue with dashes when re-aligning tree

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vishalxl 2022-08-18 18:34:37 +05:30
parent 3c9110b539
commit f7b78aa171
4 changed files with 80 additions and 27 deletions
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41
bin/nostr_console.dart
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@ -23,6 +23,8 @@ const String prikeyArg = "prikey";
const String lastdaysArg = "days";
const String relayArg = "relay";
const String helpArg = "help";
const String alignArg = "align"; // can be "left"
const String widthArg = "width";
// By default the threads that were started in last one day are shown
// this can be changed with 'days' command line argument
@ -38,9 +40,13 @@ usage: $exename [OPTIONS]
--prikey <private key> The hex private key of user whose events and feed are shown. Also used to sign events
sent. Default is a hard-coded well known private key. Same as -p
--relay <relay wss url> The relay url that is used as main relay. Default is $defaultServerUrl . Same as -r
--days <N> The latest number of days for which events are shown. Default is 1. Same as -d
--days <N as num> The latest number of days for which events are shown. Default is 1. Same as -d
--request <REQ string> This request is sent verbatim to the default relay. It can be used to recieve all events
from a relay. If not provided, then events for default or given user are shown. Same as -q
--align <left> When "left" is given as option to this argument, then the text is aligned to left. By default
the posts or text is aligned to the center of the terminal. Same as -a
--width <width as num> This specifies how wide you want the text to be, in number of columns. Default is 80.
Cant be less than $gMinValidScreenWidth. Same as -c
--help Print this usage message and exit. Same as -h
""";
@ -116,7 +122,11 @@ Future<void> terminalMenuUi(Tree node, var contactList) async {
print('You picked: $option');
switch(option) {
case 1:
//print("in display events option");
// align the text again in case the window size has been changed
if( gAlignment == "center") {
gNumLeftMarginSpaces = (stdout.terminalColumns - 80 )~/2;
}
node.printTree(0, true, DateTime.now().subtract(Duration(days:numLastDays)));
break;
@ -161,7 +171,8 @@ Future<void> main(List<String> arguments) async {
final parser = ArgParser()..addOption(requestArg, abbr: 'q') ..addOption(prikeyArg, abbr:"p")
..addOption(lastdaysArg, abbr:"d") ..addOption(relayArg, abbr:"r")
..addFlag(helpArg, abbr:"h", defaultsTo: false);
..addFlag(helpArg, abbr:"h", defaultsTo: false)..addOption(alignArg, abbr:"a")
..addOption(widthArg, abbr:"c");
try {
ArgResults argResults = parser.parse(arguments);
@ -179,12 +190,34 @@ Future<void> main(List<String> arguments) async {
userPrivateKey = argResults[prikeyArg];
userPublicKey = getPublicKey(userPrivateKey);
}
if( argResults[lastdaysArg] != null) {
if( argResults[lastdaysArg] != null) {
numLastDays = int.parse(argResults[lastdaysArg]);
print("Going to show posts for last $numLastDays days");
}
if( argResults[widthArg] != null) {
int tempScreenWidth = int.parse(argResults[widthArg]);
if( tempScreenWidth < gMinValidScreenWidth ) {
print("Screen-width cannot be less than $gMinValidScreenWidth. Going to use the defalt value of $screenWidth");
} else {
print("Going to use $screenWidth columns for text on screen.");
screenWidth = tempScreenWidth;
}
}
// can be computed only after screenWidth has been found
gNumLeftMarginSpaces = (stdout.terminalColumns - 80 )~/2;
// undo above if left option is given
if( argResults[alignArg] != null) {
if( argResults[alignArg] == "left" ) {
print("Going to align to left.");
gAlignment = "left";
gNumLeftMarginSpaces = 0;
}
}
if( argResults[requestArg] != null) {
stdout.write("Got argument request ${argResults[requestArg]}");
sendRequest("wss://nostr-pub.wellorder.net", argResults[requestArg]);

43
lib/event_ds.dart
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@ -2,15 +2,21 @@ import 'dart:io';
import 'dart:convert';
import 'package:intl/intl.dart';
const int screenWidth = 120;
const int gMinValidScreenWidth = 60;
const int defaultScreenWidth = 80;
int screenWidth = defaultScreenWidth;
const int spacesPerDepth = 8;
int gNumLeftMarginSpaces = 0; // this number is modified in main
String gAlignment = "center"; // is modified in main if --align argument is given
const int maxDepthAllowed = 7;
const int leftShiftThreadsBy = 3;
const int maxDepthAllowed = 4;
const int leftShiftThreadsBy = 2;
// 33 yellow, 31 red, 34 blue, 35 magenta. Add 60 for bright versions.
const String commentColor = "\x1B[32m"; // green
const String notificationColor = "\x1b[36m"; // cyan
const String warningColor = "\x1B[31m"; // red
const String colorEndMarker = "\x1B[0m";
//String defaultServerUrl = 'wss://relay.damus.io';
String defaultServerUrl = 'wss://nostr-relay.untethr.me';
@ -26,19 +32,32 @@ List<String> gBots = [ "3b57518d02e6acfd5eb7198530b2e351e5a52278fb2499d14b66db2
int gDebug = 0;
void printDepth(int d) {
for( int i = 0; i < spacesPerDepth * d ; i++) {
for( int i = 0; i < spacesPerDepth * d + gNumLeftMarginSpaces; i++) {
stdout.write(" ");
}
}
}
String getNumSpaces(int num) {
String s = "";
for( int i = 0; i < num; i++) {
s += " ";
}
return s;
}
String getNumDashes(int num) {
String s = "";
for( int i = 0; i < num; i++) {
s += "-";
}
return s;
}
String rightShiftContent(String s, int numSpaces) {
String newString = "";
int newlineCounter = 0;
String spacesString = "";
for( int i = 0; i < numSpaces ; i++) {
spacesString += " ";
}
String spacesString = getNumSpaces(numSpaces + gNumLeftMarginSpaces);
for(int i = 0; i < s.length; i++) {
if( s[i] == '\n') {
@ -182,7 +201,7 @@ class EventData {
void printEventData(int depth) {
int n = 3;
String maxN(String v) => v.length > n? v.substring(0,n) : v.substring(0, v.length);
void printGreen(String s, String commentColor) => stdout.supportsAnsiEscapes ?stdout.write("$commentColor$s\x1B[0m"):stdout.write(s);
void printGreen(String s, String commentColor) => stdout.supportsAnsiEscapes ?stdout.write("$commentColor$s$colorEndMarker"):stdout.write(s);
DateTime dTime = DateTime.fromMillisecondsSinceEpoch(createdAt *1000);
@ -202,7 +221,7 @@ class EventData {
stdout.write("+-------+\n");
printDepth(depth);
String name = getAuthorName(pubkey);
stdout.write("|Author : $name id: ${maxN(id)} Time: $strDate\n");
stdout.write("|Author : $name id: ${maxN(id)} Time: $strDate\n");
printDepth(depth);
stdout.write("|Message: ");
if( isNotification) {

9
lib/relays.dart
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@ -56,7 +56,7 @@ class Relays {
}
}
// following is too restrictive. TODO improve it
// following is too restrictive casuse changed sinceWhen is not considered. TODO improve it
for(int i = 0; i < users.length; i++) {
if( users[i] == publicKey) {
return;
@ -118,8 +118,8 @@ class Relays {
print( 'exception in fromJson for event');
}
},
onError: (e) { print("in onError"); print(e); },
onDone: () { print('in onDone'); }
onError: (e) { print("\n${warningColor}Warning: In SendRequest creating connection onError. Kindly check your internet connection or change the relay by command line --relay=<relay wss url>"); print(colorEndMarker); },
onDone: () { print('Info: In onDone'); }
);
} on WebSocketException {
print('WebSocketException exception');
@ -172,8 +172,6 @@ class Relays {
relays.forEach((key, value) {
print("for relay: $key");
print("$value\n");
String? reason = value.closeReason;
print( reason??"reason not found");
});
@ -214,7 +212,6 @@ void getMultiUserEvents(serverUrl, publicKeys, numUserEvents) {
relays.getMultiUserEvents(serverUrl, publicKeys, numUserEvents);
}
void sendRequest(serverUrl, request) {
relays.sendRequest(serverUrl, request);
}

14
lib/tree_ds.dart
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@ -34,8 +34,8 @@ class Tree {
mAllEvents[parentId]?.addChildNode(value); // in this if condition this will get called
} else {
// in case where the parent of the new event is not in the pool of all events,
// then we create a dummy event and put it at top ( or make this a top event?)
Tree dummyTopNode = Tree(Event("","",EventData("Unk","Non", value.e.eventData.createdAt , 0, "Unknown/Dummy Event", [], [], [], [[]]), [""], "[json]"), [], {}, []);
// then we create a dummy event and put it at top ( or make this a top event?) TODO handle so that this can be replied to, and is fetched
Tree dummyTopNode = Tree(Event("","",EventData("Unk" ,"Non", value.e.eventData.createdAt , 0, "Unknown parent event", [], [], [], [[]]), [""], "[json]"), [], {}, []);
dummyTopNode.addChildNode(value);
tempWithoutParent.add(value.e.eventData.id);
@ -142,8 +142,7 @@ class Tree {
if( depth > maxDepthAllowed) {
depth = maxDepthAllowed - leftShiftThreadsBy;
printDepth(depth+1);
stdout.write("+-------------------------------+\n");
stdout.write("+${getNumDashes((leftShiftThreadsBy + 1) * 8 - 1)}+\n");
}
children[i].printTree(depth+1, false, newerThan);
}
@ -225,10 +224,15 @@ class Tree {
}
}
if( latestEventId.isEmpty) {
// search for it in the dummy event id's
}
//print("latestEventId = $latestEventId");
if( latestEventId.isNotEmpty) {
strTags = '["e","$latestEventId"]';
}
}
if( strTags != "") {