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packages/oo7-substrate/src/pretty.js

  1. const { ss58Encode } = require('./ss58')
  2. const { bytesToHex } = require('./utils')
  3. const { VecU8, AccountId, Hash, SlashPreference, VoteThreshold, Moment, Balance, BlockNumber, AccountIndex, Tuple, reviver } = require('./types')
  4. const { denominationInfo } = require('./denominationInfo')
  5.  
  6. const numberWithCommas = n => {
  7. 	let x = n.toString();
  8. 	if (x.indexOf('.') > -1) {
  9. 		let [a, b] = x.split('.');
  10. 		return numberWithCommas(a) + '.' + b;
  11. 	} else {
  12. 		return x.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
  13. 	}
  14. }
  15.  
  16. //TODO: AccountIndex
  17.  
  18. function pretty(expr) {
  19. 	if (expr === null) {
  20. 		return 'null';
  21. 	}
  22. 	if (expr instanceof VoteThreshold) {
  23. 		return 'VoteThreshold.' + expr;
  24. 	}
  25. 	if (expr instanceof SlashPreference) {
  26. 		return 'SlashPreference{unstake_threshold=' + expr + '}';
  27. 	}
  28. 	if (expr instanceof Balance) {
  29. 		let di = denominationInfo
  30.  
  31. 		let denomincationSearch = [di.primary, Object.keys(di.denominations)]
  32. 		let unit = null
  33. 		let dp = 0
  34. 		for (ii in denomincationSearch) {
  35. 			let i = denomincationSearch[ii]
  36. 			let denom = di.denominations[i]
  37. 			let divisor = Math.pow(10, denom)
  38. 			let lower = divisor / 30
  39. 			let upper = divisor * 30000
  40. 			if (expr > lower && expr < upper) {
  41. 				unit = i
  42. 				expr /= divisor
  43. 				for (; expr < 3000 / Math.pow(10, dp); dp++) {}
  44. 				break;
  45. 			}
  46. 		}
  47.  
  48. 		if (unit === null) {
  49. 			// default
  50. 			if (expr < Math.pow(10, di.denominations[di.primary]) / 30 && expr !== 0) {
  51. 				unit = di.unit
  52. 			} else {
  53. 				unit = di.primary
  54. 				expr /= Math.pow(10, di.denominations[unit])
  55. 				expr = Math.round(expr)
  56. 			}
  57. 		}
  58.  
  59. 		return numberWithCommas(Math.round(expr * Math.pow(10, dp)) / Math.pow(10, dp)) + ' ' + unit
  60. 	}
  61. 	if (expr instanceof BlockNumber) {
  62. 		return numberWithCommas(expr);
  63. 	}
  64. 	if (expr instanceof Hash) {
  65. 		return '0x' + bytesToHex(expr);
  66. 	}
  67. 	if (expr instanceof Moment) {
  68. 		return expr.toLocaleString() + " (" + expr.number + " seconds)";
  69. 	}
  70. 	if (expr instanceof AccountId) {
  71. 		return ss58Encode(expr);
  72. 	}
  73. 	if (expr instanceof Tuple) {
  74. 		return '(' + expr.map(pretty).join(', ') + ')';
  75. 	}
  76. 	if (expr instanceof VecU8 || expr instanceof Uint8Array) {
  77. 		if (expr.length <= 256) {
  78. 			return '[' + bytesToHex(expr) + ']';
  79. 		} else {
  80. 			return `[${bytesToHex(expr.slice(0, 256))}...] (${expr.length} bytes)`;
  81. 		}
  82. 	}
  83. 	if (expr instanceof Array) {
  84. 		return '[' + expr.map(pretty).join(', ') + ']';
  85. 	}
  86. 	if (typeof expr === 'object') {
  87. 		return '{' + Object.keys(expr).map(k => k + ': ' + pretty(expr[k])).join(', ') + '}';
  88. 	}
  89. 	return '' + expr;
  90. }
  91.  
  92. module.exports = { pretty };