update lua table parser

src/app/(home)/log-parser/lua-parser.ts

@@ -0,0 +1,241 @@
+// @ts-nocheck
+'use client'
+
+type LuaValue = string | number | boolean | null | LuaTable | LuaValue[]
+type LuaTable = { [key: string]: LuaValue }
+
+export class LuaParser {
+  private pos = 0
+  private input = ''
+  private currentChar: string | null | undefined = null
+
+  constructor(input: string) {
+    this.input = input.trim()
+    this.currentChar = this.input[0] ?? null
+  }
+
+  private advance(): void {
+    this.pos++
+    this.currentChar =
+      this.pos < this.input.length ? this.input[this.pos] : null
+  }
+
+  private skipWhitespace(): void {
+    while (
+      this.currentChar?.match(/\s/) !== null &&
+      this.currentChar !== null
+    ) {
+      this.advance()
+    }
+  }
+
+  private parseString(): string {
+    let result = ''
+    const quote = this.currentChar
+    this.advance() // Skip opening quote
+
+    while (this.currentChar !== null && this.currentChar !== quote) {
+      if (this.currentChar === '\\') {
+        this.advance()
+        switch (this.currentChar) {
+          case 'n':
+            result += '\n'
+            break
+          case 't':
+            result += '\t'
+            break
+          case 'r':
+            result += '\r'
+            break
+          case 'b':
+            result += '\b'
+            break
+          case 'f':
+            result += '\f'
+            break
+          case '"':
+          case "'":
+          case '\\':
+            result += this.currentChar
+            break
+          default:
+            throw new Error(`Invalid escape sequence: \\${this.currentChar}`)
+        }
+      } else {
+        result += this.currentChar
+      }
+      this.advance()
+    }
+
+    if (this.currentChar === null) {
+      throw new Error('Unterminated string')
+    }
+    this.advance() // Skip closing quote
+    return result
+  }
+
+  private parseNumber(): number {
+    let result = ''
+
+    if (this.currentChar === '-') {
+      result += this.currentChar
+      this.advance()
+    }
+
+    while (
+      this.currentChar?.match(/[\d.]/) !== null &&
+      this.currentChar !== null
+    ) {
+      result += this.currentChar
+      this.advance()
+    }
+
+    const num = Number.parseFloat(result)
+    if (isNaN(num)) {
+      throw new Error(`Invalid number: ${result}`)
+    }
+    return num
+  }
+
+  private parseIdentifier(): string {
+    let result = ''
+
+    while (
+      this.currentChar?.match(/[a-zA-Z0-9_]/) !== null &&
+      this.currentChar !== null
+    ) {
+      result += this.currentChar
+      this.advance()
+    }
+
+    return result
+  }
+
+  private parseValue(): LuaValue {
+    this.skipWhitespace()
+
+    if (this.currentChar === null) {
+      throw new Error('Unexpected end of input')
+    }
+
+    switch (this.currentChar) {
+      case '{':
+        return this.parseTable()
+      case '"':
+      case "'":
+        return this.parseString()
+      case '-':
+      case '0':
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case '5':
+      case '6':
+      case '7':
+      case '8':
+      case '9':
+        return this.parseNumber()
+      default: {
+        const identifier = this.parseIdentifier()
+        switch (identifier.toLowerCase()) {
+          case 'true':
+            return true
+          case 'false':
+            return false
+          case 'nil':
+            return null
+          default:
+            throw new Error(`Unexpected identifier: ${identifier}`)
+        }
+      }
+    }
+  }
+
+  private parseTable(): LuaTable | LuaValue[] {
+    this.advance() // Skip '{'
+    this.skipWhitespace()
+
+    const result: LuaTable = {}
+    const array: LuaValue[] = []
+    let isArray = true
+    let index = 0
+
+    while (this.currentChar !== null && this.currentChar !== '}') {
+      this.skipWhitespace()
+
+      if (this.currentChar === '[') {
+        isArray = false
+        this.advance() // Skip '['
+        const key = this.parseValue()
+        if (typeof key !== 'string' && typeof key !== 'number') {
+          throw new Error('Table key must be string or number')
+        }
+        this.skipWhitespace()
+
+        if (this.currentChar !== ']') {
+          throw new Error("Expected ']'")
+        }
+        this.advance() // Skip ']'
+        this.skipWhitespace()
+
+        if (this.currentChar !== '=') {
+          throw new Error("Expected '='")
+        }
+        this.advance() // Skip '='
+
+        const value = this.parseValue()
+        result[String(key)] = value
+      } else {
+        const value = this.parseValue()
+        if (isArray) {
+          array.push(value)
+          index++
+        } else {
+          result[String(index)] = value
+          index++
+        }
+      }
+
+      this.skipWhitespace()
+      if (this.currentChar === ',') {
+        this.advance()
+      } else if (this.currentChar !== '}') {
+        throw new Error("Expected ',' or '}'")
+      }
+    }
+
+    if (this.currentChar === null) {
+      throw new Error('Unterminated table')
+    }
+    this.advance() // Skip '}'
+
+    return isArray ? array : result
+  }
+
+  public parse(): LuaValue {
+    const result = this.parseValue()
+    this.skipWhitespace()
+
+    if (this.currentChar !== null) {
+      throw new Error('Unexpected characters after end of input')
+    }
+
+    return result
+  }
+}
+
+export class LuaToJsonConverter {
+  private static readonly logger = console
+
+  public static async convert(luaString: string): Promise<string> {
+    try {
+      const parser = new LuaParser(luaString)
+      const parsed = parser.parse()
+      return JSON.stringify(parsed, null, 2)
+    } catch (error) {
+      this.logger.error('Error converting Lua to JSON:', error)
+      throw error
+    }
+  }
+}

src/app/(home)/log-parser/page.tsx

@@ -1,5 +1,6 @@
 'use client'
 
+import { LuaToJsonConverter } from '@/app/(home)/log-parser/lua-parser'
 import { OptimizedImage } from '@/components/optimized-image'
 import {
   Card,
@@ -37,7 +38,6 @@ import { jokers } from '@/shared/jokers'
 import { useFormatter } from 'next-intl'
 import { Fragment, useState } from 'react'
 import { type PvpBlind, PvpBlindsCard } from './_components/pvp-blinds'
-
 // Define the structure for individual log events within a game
 type LogEvent = {
   timestamp: Date
@@ -1418,31 +1418,9 @@ type JsonValue =
   | JsonValue[]
   | { [key: string]: JsonValue }
 
-function luaTableToJson(luaString: string): string {
-  let str = luaString.replace(/^return\s*/, '')
-
-  // Handle nested tables closing properly
-  str = str.replace(/,(\s*})/g, '$1')
-
-  // Handle array-style table entries [1] = value
-  str = str.replace(/\[(\d+)\]\s*=/g, '"$1":')
-
-  // Handle string keys ["key"] = value
-  str = str.replace(/\[(["'][^"']+["'])\]\s*=/g, '$1:')
-
-  // Handle regular key = value
-  str = str.replace(/(\w+)\s*=/g, '"$1":')
-
-  // Replace single quotes with double quotes
-  str = str.replace(/'/g, '"')
-
-  // Clean up empty tables
-  str = str.replace(/{}/g, '{}')
-
-  // Remove trailing commas inside objects
-  str = str.replace(/,(\s*[}\]])/g, '$1')
-
-  return str
+async function luaTableToJson(luaString: string): string {
+  const str = luaString.replace(/^return\s*/, '')
+  return LuaToJsonConverter.convert(str)
 }
 
 async function decodePackedString(encodedString: string): Promise<JsonValue> {
@@ -1466,7 +1444,8 @@ async function decodePackedString(encodedString: string): Promise<JsonValue> {
     }
 
     // Convert Lua table to JSON
-    const jsonString = luaTableToJson(decompressedString)
+    const jsonString = await luaTableToJson(decompressedString)
+    console.log(jsonString)
     const result = JSON.parse(jsonString) as JsonValue
     return result
   } catch (error) {
@@ -1479,6 +1458,7 @@ async function decodePackedString(encodedString: string): Promise<JsonValue> {
 async function parseJokersFromString(str: string) {
   // Check if the string starts with 'H4' indicating a packed string
   // This is a common prefix for base64 encoded gzip strings
+  try {
     if (str.startsWith('H4')) {
       const decoded = await decodePackedString(str)
       if (decoded && typeof decoded === 'object' && 'cards' in decoded) {
@@ -1487,5 +1467,9 @@ async function parseJokersFromString(str: string) {
         )
       }
     }
+  } catch (e) {
+    console.error('Failed to parse jokers from string:', str, e)
+    return []
+  }
   return str.split(';').filter(Boolean) // Remove empty strings if any
 }