import * as Blockly from 'blockly/core';

const TUPLE_HUE = 195; //'#5ec73d'//195;

export const tuple_create_with = {
    /**
     * Block for creating a list with any number of elements of any type.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput("")
            //don't need to specify the data type in Python
            // .appendField(new Blockly.FieldDropdown([[Blockly.Msg.MIXLY_NUMBER, 'Array<number>'], [Blockly.Msg.LANG_MATH_STRING, 'Array<string>'], [Blockly.Msg.LANG_MATH_BOOLEAN, 'Array<boolean>']]), 'TYPE')
            // .appendField(' ')
            .appendField(new Blockly.FieldTextInput('mytup'), 'VAR');
        this.itemCount_ = 3;
        this.updateShape_();
        this.setPreviousStatement(true);
        this.setNextStatement(true);
        this.setMutator(new Blockly.icons.MutatorIcon(['tuple_create_with_item'], this));
        this.setTooltip(Blockly.Msg.TUPLE_CREATE_WITH_TOOLTIP);
    },
    /**
     * Create XML to represent list inputs.
     * @return {Element} XML storage element.
     * @this Blockly.Block
     */
    mutationToDom: function () {
        var container = document.createElement('mutation');
        container.setAttribute('items', this.itemCount_);
        return container;
    },
    /**
     * Parse XML to restore the list inputs.
     * @param {!Element} xmlElement XML storage element.
     * @this Blockly.Block
     */
    domToMutation: function (xmlElement) {
        this.itemCount_ = parseInt(xmlElement.getAttribute('items'), 10);
        this.updateShape_();
    },
    /**
     * Populate the mutator's dialog with this block's components.
     * @param {!Blockly.Workspace} workspace Mutator's workspace.
     * @return {!Blockly.Block} Root block in mutator.
     * @this Blockly.Block
     */
    decompose: function (workspace) {
        var containerBlock =
            workspace.newBlock('tuple_create_with_container');
        containerBlock.initSvg();
        var connection = containerBlock.getInput('STACK').connection;
        for (var i = 0; i < this.itemCount_; i++) {
            var itemBlock = workspace.newBlock('tuple_create_with_item');
            itemBlock.initSvg();
            connection.connect(itemBlock.previousConnection);
            connection = itemBlock.nextConnection;
        }
        return containerBlock;
    },
    /**
     * Reconfigure this block based on the mutator dialog's components.
     * @param {!Blockly.Block} containerBlock Root block in mutator.
     * @this Blockly.Block
     */
    compose: function (containerBlock) {
        var itemBlock = containerBlock.getInputTargetBlock('STACK');
        // Count number of inputs.
        var connections = [];
        var i = 0;
        while (itemBlock) {
            connections[i] = itemBlock.valueConnection_;
            itemBlock = itemBlock.nextConnection &&
                itemBlock.nextConnection.targetBlock();
            i++;
        }
        this.itemCount_ = i;
        this.updateShape_();
        // Reconnect any child blocks.
        for (var i = 0; i < this.itemCount_; i++) {
            if (connections[i]) {
                this.getInput('ADD' + i).connection.connect(connections[i]);
            }
        }
    },
    /**
     * Store pointers to any connected child blocks.
     * @param {!Blockly.Block} containerBlock Root block in mutator.
     * @this Blockly.Block
     */
    saveConnections: function (containerBlock) {
        var itemBlock = containerBlock.getInputTargetBlock('STACK');
        var i = 0;
        while (itemBlock) {
            var input = this.getInput('ADD' + i);
            itemBlock.valueConnection_ = input && input.connection.targetConnection;
            i++;
            itemBlock = itemBlock.nextConnection &&
                itemBlock.nextConnection.targetBlock();
        }
    },
    /**
     * Modify this block to have the correct number of inputs.
     * @private
     * @this Blockly.Block
     */
    updateShape_: function () {
        // Delete everything.
        if (this.getInput('EMPTY')) {
            this.removeInput('EMPTY');
        } else {
            var i = 0;
            while (this.getInput('ADD' + i)) {
                this.removeInput('ADD' + i);
                i++;
            }
        }
        // Rebuild block.
        if (this.itemCount_ == 0) {
            this.appendDummyInput('EMPTY')
                .appendField(Blockly.Msg.TUPLE_CREATE_EMPTY_TITLE);
        } else {
            for (var i = 0; i < this.itemCount_; i++) {
                var input = this.appendValueInput('ADD' + i);
                if (i == 0) {
                    input.appendField(Blockly.Msg.TUPLE_CREATE_WITH_INPUT_WITH);
                }
            }
        }
    },
    getVars: function () {
        return [this.getFieldValue('VAR')];
    },
    renameVar: function (oldName, newName) {
        if (Blockly.Names.equals(oldName, this.getFieldValue('VAR'))) {
            this.setTitleValue(newName, 'VAR');
        }
    }
};

export const tuple_create_with_container = {
    /**
     * Mutator block for list container.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput()
            .appendField(Blockly.Msg.TUPLE_CREATE_WITH_CONTAINER_TITLE_ADD);
        this.appendStatementInput('STACK');
        this.setTooltip(Blockly.Msg.TUPLE_CREATE_WITH_CONTAINER_TOOLTIP);
        this.contextMenu = false;
    }
};

export const tuple_create_with_item = {
    /**
     * Mutator bolck for adding items.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput()
            .appendField(Blockly.Msg.blockpy_SET_VARIABLES_NAME);
        this.setPreviousStatement(true);
        this.setNextStatement(true);
        this.setTooltip(Blockly.Msg.TUPLE_CREATE_WITH_ITEM_TOOLTIP);
        this.contextMenu = false;
    }
};

export const tuple_create_with_text2 = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput("")
            //don't need to specify the data type in Python
            // .appendField(new Blockly.FieldDropdown([[Blockly.Msg.MIXLY_NUMBER, 'Array<number>']]), 'TYPE')
            // .appendField(' ')
            // .appendField(Blockly.Msg.blockpy_MIXLY_TUPLE_CREATE)
            .appendField(new Blockly.FieldTextInput('mytup'), 'VAR')
            //.appendField(new Blockly.FieldTextInput('3',Blockly.FieldTextInput.math_number_validator), 'SIZE')
            // .appendField(Blockly.Msg.MIXLY_MAKELISTFROM)
            // .appendField(this.newQuote_(true))
            .appendField(' = (')
            .appendField(new Blockly.FieldTextInput('0,0,0'), 'TEXT')
            .appendField(')');
        // .appendField(this.newQuote_(false))
        this.setPreviousStatement(true);
        this.setNextStatement(true);
        this.setTooltip(Blockly.Msg.MIXPY_TOOLTIP_TUPLE_CREATE_WITH_TEXT);
    },
    getVars: function () {
        return [this.getFieldValue('VAR')];
    },
    renameVar: function (oldName, newName) {
        if (Blockly.Names.equals(oldName, this.getFieldValue('VAR'))) {
            this.setTitleValue(newName, 'VAR');
        }
    }
    // newQuote_: function(open) {
    //   if (open == this.RTL) {
    //     var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAqUlEQVQI1z3KvUpCcRiA8ef9E4JNHhI0aFEacm1o0BsI0Slx8wa8gLauoDnoBhq7DcfWhggONDmJJgqCPA7neJ7p934EOOKOnM8Q7PDElo/4x4lFb2DmuUjcUzS3URnGib9qaPNbuXvBO3sGPHJDRG6fGVdMSeWDP2q99FQdFrz26Gu5Tq7dFMzUvbXy8KXeAj57cOklgA+u1B5AoslLtGIHQMaCVnwDnADZIFIrXsoXrgAAAABJRU5ErkJggg==';
    //   } else {
    //     var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAn0lEQVQI1z3OMa5BURSF4f/cQhAKjUQhuQmFNwGJEUi0RKN5rU7FHKhpjEH3TEMtkdBSCY1EIv8r7nFX9e29V7EBAOvu7RPjwmWGH/VuF8CyN9/OAdvqIXYLvtRaNjx9mMTDyo+NjAN1HNcl9ZQ5oQMM3dgDUqDo1l8DzvwmtZN7mnD+PkmLa+4mhrxVA9fRowBWmVBhFy5gYEjKMfz9AylsaRRgGzvZAAAAAElFTkSuQmCC';
    //   }
    //   return new Blockly.FieldImage(file, 12, 12, '"');
    // }
}

export const tuple_create_with_text_return = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput("")
            .appendField('(')
            .appendField(new Blockly.FieldTextInput('0,0,0'), 'TEXT')
            .appendField(')');
        // .appendField(this.newQuote_(false))
        this.setOutput(true);
        this.setInputsInline(true);
        this.setTooltip(Blockly.Msg.MIXPY_TOOLTIP_TUPLE_CREATE_WITH_TEXT);
        // },
        // getVars: function() {
        //   return [this.getFieldValue('VAR')];
        // },
        // renameVar: function(oldName, newName) {
        //   if (Blockly.Names.equals(oldName, this.getFieldValue('VAR'))) {
        //     this.setTitleValue(newName, 'VAR');
        //   }
    }
    // newQuote_: function(open) {
    //   if (open == this.RTL) {
    //     var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAqUlEQVQI1z3KvUpCcRiA8ef9E4JNHhI0aFEacm1o0BsI0Slx8wa8gLauoDnoBhq7DcfWhggONDmJJgqCPA7neJ7p934EOOKOnM8Q7PDElo/4x4lFb2DmuUjcUzS3URnGib9qaPNbuXvBO3sGPHJDRG6fGVdMSeWDP2q99FQdFrz26Gu5Tq7dFMzUvbXy8KXeAj57cOklgA+u1B5AoslLtGIHQMaCVnwDnADZIFIrXsoXrgAAAABJRU5ErkJggg==';
    //   } else {
    //     var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAn0lEQVQI1z3OMa5BURSF4f/cQhAKjUQhuQmFNwGJEUi0RKN5rU7FHKhpjEH3TEMtkdBSCY1EIv8r7nFX9e29V7EBAOvu7RPjwmWGH/VuF8CyN9/OAdvqIXYLvtRaNjx9mMTDyo+NjAN1HNcl9ZQ5oQMM3dgDUqDo1l8DzvwmtZN7mnD+PkmLa+4mhrxVA9fRowBWmVBhFy5gYEjKMfz9AylsaRRgGzvZAAAAAElFTkSuQmCC';
    //   }
    //   return new Blockly.FieldImage(file, 12, 12, '"');
    // }
}

export const tuple_getIndex = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.setOutput(true);
        this.appendValueInput('TUP')
            .setCheck('Tuple')
        this.appendValueInput('AT')
            .setCheck(Number)

            .appendField(Blockly.Msg.LANG_LISTS_GET_INDEX1);
        this.appendDummyInput("")
            .appendField(Blockly.Msg.LANG_LISTS_GET_INDEX2);
        this.setInputsInline(true);
        this.setTooltip(Blockly.Msg.TUPLE_GET_INDEX_TOOLTIP);
    }
};

export const tuple_length = {
    /**
     * Block for list length.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput('TUP');
        this.appendDummyInput("")
            .appendField(Blockly.Msg.MIXLY_LENGTH);

        this.setTooltip(Blockly.Msg.TUPLE_LENGTH_TOOLTIP);
        this.setOutput(true, Number);
    }
};

export const tuple_del = {
    /**
     * Block for list length.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput('TUP')
            .setCheck('Tuple')
        this.appendDummyInput("")
            .appendField(Blockly.Msg.TUPLE_DEL);
        this.setPreviousStatement(true);
        this.setNextStatement(true);
        this.setTooltip(Blockly.Msg.TUPLE_DEL_TOOLTIP);
    }
};

export const tuple_join = {
    /**
     * Block for list length.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput('TUP1')
            .setCheck('Tuple')
        this.appendDummyInput("")
            .appendField(Blockly.Msg.TUPLE_JOIN)
        this.appendValueInput('TUP2')
            .setCheck('Tuple')
        this.setInputsInline(true);
        this.setTooltip(Blockly.Msg.TUPLE_JOIN_TOOLTIP);
        this.setOutput(true, "Tuple");
    }
};


export const tuple_max = {
    init: function () {
        this.appendValueInput('TUP')
            .setCheck('Tuple')
        var max_min =
            [[Blockly.Msg.blockpy_TUPLE_MAX, 'max'], [Blockly.Msg.blockpy_TUPLE_MIN, 'min'], [Blockly.Msg.MATH_ONLIST_OPERATOR_SUM, 'sum']];
        this.setColour(TUPLE_HUE);
        this.appendDummyInput("")
            .appendField(Blockly.Msg.MIXLY_MICROBIT_JS_GET)
            .appendField(new Blockly.FieldDropdown(max_min), 'DIR')


        this.setInputsInline(true);
        this.setOutput(true);
        var thisBlock = this;
        this.setTooltip(function () {
            var mode = thisBlock.getFieldValue('DIR');
            var TOOLTIPS = {
                'max': Blockly.Msg.MIXLY_TOOLTIP_TUPLE_MAX,
                'min': Blockly.Msg.MIXLY_TOOLTIP_TUPLE_MIN,
                'sum': Blockly.Msg.MIXLY_TOOLTIP_TUPLE_SUM
            };
            return TOOLTIPS[mode];
        });
    }
};

export const tuple_change_to = {
    init: function () {
        var OPERATORS = [
            [Blockly.Msg.MIXLY_MICROBIT_TYPE_LIST, 'list'],
            [Blockly.Msg.blockpy_SET_CREATE_WITH_CONTAINER_TITLE_ADD, 'set']
        ];
        this.setColour(TUPLE_HUE);
        this.appendValueInput('VAR')
            .setCheck("Tuple")
        // .appendField(Blockly.Msg.blockpy_USE_LIST);
        this.appendDummyInput("")
            .appendField(Blockly.Msg.A_TO_B)
            .appendField(new Blockly.FieldDropdown(OPERATORS), 'OP');
        this.setInputsInline(true);
        this.setOutput(true);
        var thisBlock = this;
        this.setTooltip(function () {
            var mode = thisBlock.getFieldValue('OP');
            var TOOLTIPS = {
                'list': Blockly.Msg.TUPLE_TO_LISTS,
                'set': Blockly.Msg.TUPLE_TO_SET,
            };
            return TOOLTIPS[mode];
        });
    }
};

export const tuple_find = {
    init: function () {
        var OPERATORS = [
            [Blockly.Msg.MIXLY_LIST_INDEX, 'INDEX'],
            [Blockly.Msg.MIXLY_LIST_COUNT, 'COUNT']
        ];
        this.setColour(TUPLE_HUE);
        this.appendValueInput('VAR')
            .setCheck('List')
        this.appendValueInput('data')
            .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_GET)
            .appendField(Blockly.Msg.HTML_VALUE)
        this.appendDummyInput()
            .appendField(Blockly.Msg.MIXLY_DE)
            .appendField(new Blockly.FieldDropdown(OPERATORS), 'OP');
        //.appendField(new Blockly.FieldTextInput('mylist'), 'VAR')
        this.setInputsInline(true);
        this.setOutput(true, Number);
        var thisBlock = this;
        this.setTooltip(function () {
            var mode = thisBlock.getFieldValue('OP');
            var TOOLTIPS = {
                'INDEX': Blockly.Msg.MIXLY_TOOLTIP_TUPLE_FIND_INDEX,
                'COUNT': Blockly.Msg.MIXLY_TOOLTIP_TUPLE_FIND_COUNT

            };
            return TOOLTIPS[mode];
        });
    }
};

export const tuple_trig = {
    init: function () {
        var OPERATORS = [
            [Blockly.Msg.MIXLY_LIST_LEN, 'LEN'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_SUM, 'SUM'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_MAX, 'MAX'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_MIN, 'MIN'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_AVERAGE, 'AVERAGE'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_MEDIAN, 'MEDIAN'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_MODE, 'MODE'],
            [Blockly.Msg.MATH_ONLIST_OPERATOR_STD_DEV, 'STD_DEV'],
        ];
        //this.setHelpUrl(Blockly.Msg.MATH_TRIG_HELPURL);
        this.setColour(TUPLE_HUE);
        this.setOutput(true, Number);
        this.appendValueInput('data')
            .setCheck('List')
        this.appendDummyInput()
            .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_GET)
            .appendField(new Blockly.FieldDropdown(OPERATORS), 'OP');
        this.setInputsInline(true);
        // Assign 'this' to a variable for use in the tooltip closure below.
        var thisBlock = this;
        this.setTooltip(function () {
            var mode = thisBlock.getFieldValue('OP');
            var TOOLTIPS = {
                'LEN': Blockly.Msg.TUPLE_LENGTH_TOOLTIP,
                'SUM': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_SUM,
                'MAX': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_MAX,
                'MIN': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_MIN,
                'AVERAGE': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_AVERAGE,
                'MEDIAN': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_MEDIAN,
                'MODE': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_MODE,
                'STD_DEV': Blockly.Msg.MATH_ONLIST_TOOLTIP_TUPLE_STD_DEV

            };
            return TOOLTIPS[mode];
        });
    }
};

export const tuple_getSublist = {
    /**
     * Block for getting sublist.
     * @this Blockly.Block
     */
    init: function () {
        this['WHERE_OPTIONS_1'] = [
            [Blockly.Msg.LISTS_GET_INDEX_FROM_START, 'FROM_START'],
            [Blockly.Msg.LISTS_GET_INDEX_FROM_END, 'FROM_END'],
            [Blockly.Msg.LISTS_GET_SUBLIST_START_FIRST, 'FIRST']
        ];
        this['WHERE_OPTIONS_2'] = [
            [Blockly.Msg.LISTS_GET_SUBLIST_END_FROM_START, 'FROM_START'],
            [Blockly.Msg.LISTS_GET_SUBLIST_END_FROM_END, 'FROM_END'],
            [Blockly.Msg.LISTS_GET_SUBLIST_END_LAST, 'LAST']
        ];
        this.setHelpUrl(Blockly.Msg.LISTS_GET_SUBLIST_HELPURL);
        this.setColour(TUPLE_HUE);
        this.appendValueInput('LIST')
            .setCheck('List')
        //.appendField(Blockly.Msg.LISTS_GET_SUBLIST_TAIL)
        // if (Blockly.Msg.LISTS_GET_SUBLIST_TAIL) {
        //   this.appendDummyInput('TAIL')
        //       .appendField(Blockly.Msg.LISTS_GET_SUBLIST_TAIL);
        // }
        this.appendDummyInput('')
            .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_GET);
        this.appendDummyInput('AT1');
        this.appendDummyInput('AT2');
        this.setInputsInline(true);
        this.setOutput(true, 'List');
        this.updateAt_(1, true);
        this.updateAt_(2, true);
        this.setTooltip(Blockly.Msg.PYTHON_TUPLE_GET_SUBLIST_TOOLTIP);
    },
    /**
     * Create XML to represent whether there are 'AT' inputs.
     * @return {Element} XML storage element.
     * @this Blockly.Block
     */
    mutationToDom: function () {
        var container = document.createElement('mutation');
        var isAt1 = this.getInput('AT1').type == Blockly.INPUT_VALUE;
        container.setAttribute('at1', isAt1);
        var isAt2 = this.getInput('AT2').type == Blockly.INPUT_VALUE;
        container.setAttribute('at2', isAt2);
        return container;
    },
    /**
     * Parse XML to restore the 'AT' inputs.
     * @param {!Element} xmlElement XML storage element.
     * @this Blockly.Block
     */
    domToMutation: function (xmlElement) {
        var isAt1 = (xmlElement.getAttribute('at1') == 'true');
        var isAt2 = (xmlElement.getAttribute('at2') == 'true');
        this.updateAt_(1, isAt1);
        this.updateAt_(2, isAt2);
    },
    /**
     * Create or delete an input for a numeric index.
     * This block has two such inputs, independant of each other.
     * @param {number} n Specify first or second input (1 or 2).
     * @param {boolean} isAt True if the input should exist.
     * @private
     * @this Blockly.Block
     */
    updateAt_: function (n, isAt) {
        // Create or delete an input for the numeric index.
        // Destroy old 'AT' and 'ORDINAL' inputs.
        this.removeInput('AT' + n);
        this.removeInput('ORDINAL' + n, true);
        // Create either a value 'AT' input or a dummy input.
        if (isAt) {
            this.appendValueInput('AT' + n).setCheck(Number);
            if (Blockly.Msg.TEXT_CHARAT_TAIL) {
                this.appendDummyInput('ORDINAL' + n)
                    .appendField(Blockly.Msg.TEXT_CHARAT_TAIL);
            }
        } else {
            this.appendDummyInput('AT' + n);
        }
        var menu = new Blockly.FieldDropdown(this['WHERE_OPTIONS_' + n],
            function (value) {
                var newAt = (value == 'FROM_START') || (value == 'FROM_END');
                // The 'isAt' variable is available due to this function being a
                // closure.
                if (newAt != isAt) {
                    var block = this.sourceBlock_;
                    block.updateAt_(n, newAt);
                    // This menu has been destroyed and replaced.
                    // Update the replacement.
                    block.setFieldValue(value, 'WHERE' + n);
                    return null;
                }
                return undefined;
            });
        this.getInput('AT' + n)
            .appendField(menu, 'WHERE' + n);
        if (n == 1) {
            this.moveInputBefore('AT1', 'AT2');
            if (this.getInput('ORDINAL1')) {
                this.moveInputBefore('ORDINAL1', 'AT2');
            }
        }
        // if (Blockly.Msg.LISTS_GET_SUBLIST_TAIL) {
        //   this.moveInputBefore('TAIL', null);
        // }
    }
};

export const tuple_create_with_noreturn = {
    /**
     * Block for creating a list with any number of elements of any type.
     * @this Blockly.Block
     */
    init: function () {
        this.setColour(TUPLE_HUE);
        this.itemCount_ = 3;
        this.updateShape_();
        this.setPreviousStatement(false);
        this.setNextStatement(false);
        this.setOutput(true, "Tuple")
        this.setMutator(new Blockly.icons.MutatorIcon(['tuple_create_with_item'], this));
        this.setTooltip(Blockly.Msg.TUPLE_CREATE_WITH_TOOLTIP);
    },
    /**
     * Create XML to represent list inputs.
     * @return {Element} XML storage element.
     * @this Blockly.Block
     */
    mutationToDom: function () {
        var container = document.createElement('mutation');
        container.setAttribute('items', this.itemCount_);
        return container;
    },
    /**
     * Parse XML to restore the list inputs.
     * @param {!Element} xmlElement XML storage element.
     * @this Blockly.Block
     */
    domToMutation: function (xmlElement) {
        this.itemCount_ = parseInt(xmlElement.getAttribute('items'), 10);
        this.updateShape_();
    },
    /**
     * Populate the mutator's dialog with this block's components.
     * @param {!Blockly.Workspace} workspace Mutator's workspace.
     * @return {!Blockly.Block} Root block in mutator.
     * @this Blockly.Block
     */
    decompose: function (workspace) {
        var containerBlock =
            workspace.newBlock('tuple_create_with_container');
        containerBlock.initSvg();
        var connection = containerBlock.getInput('STACK').connection;
        for (var i = 0; i < this.itemCount_; i++) {
            var itemBlock = workspace.newBlock('tuple_create_with_item');
            itemBlock.initSvg();
            connection.connect(itemBlock.previousConnection);
            connection = itemBlock.nextConnection;
        }
        return containerBlock;
    },
    /**
     * Reconfigure this block based on the mutator dialog's components.
     * @param {!Blockly.Block} containerBlock Root block in mutator.
     * @this Blockly.Block
     */
    compose: function (containerBlock) {
        var itemBlock = containerBlock.getInputTargetBlock('STACK');
        // Count number of inputs.
        var connections = [];
        var i = 0;
        while (itemBlock) {
            connections[i] = itemBlock.valueConnection_;
            itemBlock = itemBlock.nextConnection &&
                itemBlock.nextConnection.targetBlock();
            i++;
        }
        this.itemCount_ = i;
        this.updateShape_();
        // Reconnect any child blocks.
        for (var i = 0; i < this.itemCount_; i++) {
            if (connections[i]) {
                this.getInput('ADD' + i).connection.connect(connections[i]);
            }
        }
    },
    /**
     * Store pointers to any connected child blocks.
     * @param {!Blockly.Block} containerBlock Root block in mutator.
     * @this Blockly.Block
     */
    saveConnections: function (containerBlock) {
        var itemBlock = containerBlock.getInputTargetBlock('STACK');
        var i = 0;
        while (itemBlock) {
            var input = this.getInput('ADD' + i);
            itemBlock.valueConnection_ = input && input.connection.targetConnection;
            i++;
            itemBlock = itemBlock.nextConnection &&
                itemBlock.nextConnection.targetBlock();
        }
    },
    /**
     * Modify this block to have the correct number of inputs.
     * @private
     * @this Blockly.Block
     */
    updateShape_: function () {
        // Delete everything.
        if (this.getInput('EMPTY')) {
            this.removeInput('EMPTY');
        } else {
            var i = 0;
            while (this.getInput('ADD' + i)) {
                this.removeInput('ADD' + i);
                i++;
            }
        }
        // Rebuild block.
        if (this.itemCount_ == 0) {
            this.appendDummyInput('EMPTY')
                .appendField(Blockly.Msg.TUPLE_CREATE_EMPTY_TITLE);
        } else {
            for (var i = 0; i < this.itemCount_; i++) {
                var input = this.appendValueInput('ADD' + i);
                if (i == 0) {
                    input.appendField(Blockly.Msg.TUPLE_CREATE_WITH_INPUT_WITH);
                }
            }
        }
    },
    getVars: function () {
        return [this.getFieldValue('VAR')];
    },
    renameVar: function (oldName, newName) {
        if (Blockly.Names.equals(oldName, this.getFieldValue('VAR'))) {
            this.setTitleValue(newName, 'VAR');
        }
    }
};

export const tuple_get_sublist = {
    /**
     * Block for getting sublist.
     * @this Blockly.Block
     */
    init: function () {
        this.setHelpUrl(Blockly.Msg.LISTS_GET_SUBLIST_HELPURL);
        this.setColour(TUPLE_HUE);
        this.appendValueInput('LIST')
        this.appendDummyInput('')
        this.appendValueInput('AT1')
            .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_GET + " " + Blockly.Msg.LISTS_GET_INDEX_FROM_START);
        this.appendValueInput('AT2')
            .appendField(Blockly.Msg.TEXT_CHARAT_TAIL + " " + Blockly.Msg.LISTS_GET_SUBLIST_END_FROM_START);
        this.appendDummyInput()
            .appendField(Blockly.Msg.TEXT_CHARAT_TAIL);
        this.setInputsInline(true);
        this.setOutput(true, 'Tuple');
        this.setTooltip(Blockly.Msg.PYTHON_TUPLE_GET_SUBLIST_TOOLTIP);
    }
}

export const tuple_get_random_item = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput("TUP");
        this.appendDummyInput()
            .appendField(Blockly.Msg.MIXLY_MICROBIT_PY_STORAGE_GET + " " + Blockly.Msg.LISTS_GET_INDEX_RANDOM)
        this.setTooltip(Blockly.Msg.LISTS_GET_INDEX_TOOLTIP_GET_RANDOM);
        this.setOutput(true);
    }
};

export const tuple_totuple = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput('VAR')
            .appendField(Blockly.Msg.MIXLY_TOTUPLE);
        this.setOutput(true);
        this.setTooltip(Blockly.Msg.MIXLY_PYTHON_TOOLTIP_TOTUPLE);
    }
};
function getCurrentTimeTuple() {
    var now = new Date();
    var year = now.getFullYear();
    var month = now.getMonth() + 1; // 月份从 0 开始，所以要加 1
    var day = now.getDate();
    var hour = now.getHours();
    var minute = now.getMinutes();
    var second = now.getSeconds();
    
    // 返回元组格式的时间字符串
    return  year + "," + month + "," + day + "," + hour + "," + minute + "," + second ;
}
export const tuple_input = {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendDummyInput("")
            .appendField('(')
            .appendField(new Blockly.FieldTextInput(getCurrentTimeTuple()),"CONTENT")
            .appendField(')');
        this.setOutput(true);
    }
};


export const tuple_create_llm_params= {
    init: function () {
        this.setColour(TUPLE_HUE);
        this.appendValueInput("params")
            .appendField('(')
            .appendField(Blockly.Msg.MIXLY_NAME_OF_PARAMS)
        this.appendDummyInput()
            .appendField(',')
            .appendField(Blockly.Msg.MIXLY_TYPE)
            .appendField(new Blockly.FieldDropdown([
                [Blockly.Msg.MIXLY_TYPE_BOOLEAN,"boolean"],
                [Blockly.Msg.MIXLY_TYPE_STRING,"string"],
                [Blockly.Msg.MIXLY_TYPE_NUMBER,"number"],
                [Blockly.Msg.MIXLY_TYPE_INTEGER,"integer"],
                [Blockly.Msg.MIXLY_TYPE_NULL,"null"]
            ]),"type")
        this.appendValueInput("des")
            .appendField(',')
            .appendField(Blockly.Msg.MIXLY_DESCRIPTION)
        this.appendDummyInput()
            .appendField(')');
        this.setOutput(true);
        this.setInputsInline(true);
        this.setTooltip(Blockly.Msg.MIXPY_TOOLTIP_TUPLE_CREATE_WITH_TEXT);
    }
};