Blockly.Blocks['oc_i2cslave'] = {
    init: function () {
        this.appendValueInput("i2c_addr")
            .setCheck("Number")
            .appendField("PICOスレーブ：I2Cアドレス");
        this.appendDummyInput()
            .appendField(new Blockly.FieldVariable("データ"), "data")
            .appendField("を受け取ったら");
        this.appendStatementInput("do")
            .setCheck(null);
        this.setInputsInline(false);
        this.setPreviousStatement(true, null);
        this.setTooltip("Raspberry Pi Pico（及びその互換機）を I2Cスレーブ化します。受信データは1バイトデータです。i2c_slave.py が必要です。");
        this.setHelpUrl("");
        this.setStyle('gpio_blocks');
    }
};
Blockly.Python['oc_i2cslave'] = function (block) {
    var value_i2c_addr = Blockly.Python.valueToCode(block, 'i2c_addr', Blockly.Python.ORDER_ATOMIC);
    var variable_data = Blockly.Python.nameDB_.getName(block.getFieldValue('data'), Blockly.Names.NameType.VARIABLE);
    var statements_do = Blockly.Python.statementToCode(block, 'do');
    Blockly.Python.provideFunction_(
        'import_i2cslave', ['from i2cSlave import i2c_slave']
    );
    var code = `_i2cs = i2c_slave(0,sda=0,scl=1,slaveAddress=${value_i2c_addr})
while True:
  ${variable_data} = int(_i2cs.get())
${statements_do}
`;
    return code;
};


flyout_contents = flyout_contents.concat([
    {
        "kind": "label",
        "text": "RPi Pico I2Cスレーブ化",
        "web-line": "4.0",
        "web-line-width": "200"
    }, {
        "kind": "block",
        "type": "oc_i2cslave",
        "fields": {
            "data": {
                "name": "データ"
            }
        },
        "inputs": {
            "i2c_addr": {
                "shadow": {
                    "type": "ugj_hextodec",
                    "inputs": {
                        "hex": {
                            "shadow": {
                                "type": "text",
                                "fields": {
                                    "TEXT": "41"
                                }
                            }
                        }
                    }
                }
            }
        }
    }
])