app.py

import gradio as gr
import requests
from typing import List


def convert_sql_to_solidity(sql_commands: List[str]) -> str:
    table_name = ""
    solidity_code = "pragma solidity ^0.4.25;\n\n"
    solidity_code += "// import \"./Table.sol\";\n\n"

    for sql_command in sql_commands:
        if sql_command.startswith("CREATE TABLE"):
            table_name = sql_command.split()[2]
            columns = sql_command.split("(")[1].split(")")[0].split(", ")
            primary_key = columns[0].split()[0]
            other_columns = [column.split()[0] for column in columns[1:]]

            solidity_code += f"contract {table_name.capitalize()} {{\n\n"
            solidity_code += "\taddress private _owner;\n\n"
            solidity_code += "\tmodifier onlyOwner {\n"
            solidity_code += "\t\trequire(_owner == msg.sender, \"Auth: only owner is authorized\");\n"
            solidity_code += "\t\t_;\n"
            solidity_code += "\t}\n\n"
            solidity_code += "\tconstructor() public {\n"
            solidity_code += "\t\t_owner = msg.sender;\n"
            solidity_code += "\t}\n\n"

            solidity_code += f"\t// {sql_command}\n"
            solidity_code += f"\tfunction create() public onlyOwner returns (int) {{\n"
            solidity_code += f"\t\tTableFactory tf = TableFactory(0x1001);\n"
            solidity_code += f"\t\tint count = tf.createTable(\"{table_name}\", \"{primary_key}\", \"{', '.join(other_columns)}\");\n"
            solidity_code += f"\t\treturn count;\n"
            solidity_code += f"\t}}\n\n"

        elif sql_command.startswith("INSERT INTO"):
            table_name = sql_command.split()[2]
            columns = sql_command.split("(")[1].split(")")[0].split(", ")
            values = sql_command.split("VALUES (")[1].split(")")[0].split(", ")

            solidity_code += f"\t// {sql_command}\n"
            solidity_code += f"\tfunction insert({', '.join([f'string {column}' for column in columns])}) public onlyOwner returns (int) {{\n"
            solidity_code += f"\t\tTableFactory tf = TableFactory(0x1001);\n"
            solidity_code += f"\t\tTable table = tf.openTable(\"{table_name}\");\n\n"
            solidity_code += f"\t\tEntry entry = table.newEntry();\n"

            for column, value in zip(columns, values):
                column_name = column.split()[0]
                value = value.strip("'")
                solidity_code += f"\t\tentry.set(\"{column_name}\", \"{value}\");\n"

            solidity_code += f"\n\t\tint count = table.insert(entry);\n"
            solidity_code += f"\t\treturn count;\n"
            solidity_code += f"\t}}\n\n"

        elif sql_command.startswith("UPDATE"):
            table_name = sql_command.split()[1]
            set_column, set_value = sql_command.split("SET ")[1].split(" WHERE ")[0].split(" = ")
            where_column, where_value = sql_command.split(" WHERE ")[1].split(" = ")

            set_value = set_value.strip("'")
            where_value = where_value.strip("'")

            solidity_code += f"\t// {sql_command}\n"
            solidity_code += f"\tfunction update(string {where_column}, string {set_column}) public onlyOwner returns (int) {{\n"
            solidity_code += f"\t\tTableFactory tf = TableFactory(0x1001);\n"
            solidity_code += f"\t\tTable table = tf.openTable(\"{table_name}\");\n\n"
            solidity_code += f"\t\tEntry entry = table.newEntry();\n"
            solidity_code += f"\t\tentry.set(\"{set_column}\", {set_column});\n\n"
            solidity_code += f"\t\tCondition condition = table.newCondition();\n"
            solidity_code += f"\t\tcondition.EQ(\"{where_column}\", {where_column});\n\n"
            solidity_code += f"\t\tint count = table.update(entry, condition);\n"
            solidity_code += f"\t\treturn count;\n"
            solidity_code += f"\t}}\n\n"

        elif sql_command.startswith("DELETE FROM"):
            table_name = sql_command.split()[2]
            where_column, where_value = sql_command.split(" WHERE ")[1].split(" = ")
            where_value = where_value.strip("'")

            solidity_code += f"\t// {sql_command}\n"
            solidity_code += f"\tfunction remove(string {where_column}) public onlyOwner returns (int) {{\n"
            solidity_code += f"\t\tTableFactory tf = TableFactory(0x1001);\n"
            solidity_code += f"\t\tTable table = tf.openTable(\"{table_name}\");\n\n"
            solidity_code += f"\t\tCondition condition = table.newCondition();\n"
            solidity_code += f"\t\tcondition.EQ(\"{where_column}\", {where_column});\n\n"
            solidity_code += f"\t\tint count = table.remove(condition);\n"
            solidity_code += f"\t\treturn count;\n"
            solidity_code += f"\t}}\n\n"

    solidity_code += "}\n"
    return solidity_code


def convert_sql_commands(sql: str):
    sql_commands = sql.strip().split(";")
    solidity_code = convert_sql_to_solidity(sql_commands)
    return solidity_code


iface = gr.Interface(
    fn=convert_sql_commands,
    inputs=gr.inputs.Textbox(lines=5, label="SQL Commands"),
    outputs="text",
    title="SQL to Solidity Converter",
    description="Convert SQL commands into Solidity code for CRUD operations. Table sol URL :https://gist.github.com/syaikhipin/41faf4857f8615645db8c1ebfaf36755",
    examples=[
        ["CREATE TABLE students (id TEXT PRIMARY KEY, name TEXT, age INTEGER);"
         "INSERT INTO students (id, name, age) VALUES ('1', 'Alice', 20);"
         "UPDATE students SET age = 22 WHERE id = '1';"
         "DELETE FROM students WHERE id = '2'"],
    ],
)




iface.launch()