import QtQuick
import QtQuick.Controls
import QtQuick.Layouts
import PrimeNumbers

ApplicationWindow {
    visible: true
    width: 400
    height: 500
    title: "Factorization"

    FactorizationController {
        id: factorizationController
    }

    ColumnLayout {
        anchors.fill: parent
        spacing: 15

        GroupBox {
            title: "Input"
            Layout.fillWidth: true

            ColumnLayout {
                anchors.fill: parent
                spacing: 10

                TextField {
                    id: numberInput
                    placeholderText: "Enter a number"
                    // NOTE: We can't use the IntValidator here, since it doesn't support 64-bit values (long long)
                    // Entering invalid numbers might cause unexpected behavior (will be fed to parseInt).
                    Layout.fillWidth: true
                    font.pixelSize: 16
                    onTextChanged: factorizationController.reset()
                }

                RowLayout {
                    Layout.fillWidth: true
                    Button {
                        text: factorizationController.isPaused ? "Resume" : factorizationController.isRunning ? "..." : "Start"
                        Layout.fillWidth: true
                        enabled: !factorizationController.isRunning
                        onClicked: {
                            if (factorizationController.isPaused) {
                                factorizationController.resume();
                            } else {
                                factorizationController.start(parseInt(numberInput.text, 10));
                            }
                        }
                    }

                    Button {
                        text: factorizationController.isPaused ? "Reset" : factorizationController.isRunning ? "Pause" : "Reset"
                        Layout.fillWidth: true
                        enabled: factorizationController.isRunning || factorizationController.isPaused
                        onClicked: {
                            if (factorizationController.isPaused) {
                                factorizationController.reset();
                            } else {
                                factorizationController.stop();
                            }
                        }
                    }
                }
            }
        }

        GroupBox {
            title: "Settings"
            Layout.fillWidth: true

            ColumnLayout {
                anchors.fill: parent
                spacing: 10

                RowLayout {
                    Layout.fillWidth: true

                    Text {
                        text: "Iterations per cycle:"
                        Layout.alignment: Qt.AlignLeft
                    }

                    Slider {
                        id: iterationSlider
                        Layout.fillWidth: true
                        from: 1
                        to: 100000
                        stepSize: 1
                        value: 1
                        onValueChanged: factorizationController.iterationsPerCycle = value
                    }

                    Text {
                        text: iterationSlider.value.toFixed(0)
                        font.bold: true
                        Layout.alignment: Qt.AlignRight
                    }
                }

                RowLayout {
                    Layout.fillWidth: true

                    CheckBox {
                        text: "Stop at sqrt(n)"
                        checked: factorizationController.useSqrtOptimization
                        onCheckedChanged: factorizationController.useSqrtOptimization = checked
                    }

                    CheckBox {
                        text: "Pause when factor found"
                        checked: factorizationController.pauseOnFound
                        onCheckedChanged: factorizationController.pauseOnFound = checked
                    }
                }
            }
        }

        GroupBox {
            title: "Current Status"
            Layout.fillWidth: true

            ColumnLayout {
                anchors.fill: parent
                spacing: 5

                Text {
                    text: "Current Number (being factorized): " + factorizationController.curFactNumber
                    font.pixelSize: 14
                }

                Text {
                    text: "Current Factor: " + factorizationController.currentFactor
                    font.pixelSize: 14
                }

                Text {
                    text: "Stop Factor: " + factorizationController.stopFactor
                    font.pixelSize: 14
                }

                Item {
                    Layout.fillWidth: true
                    Layout.preferredHeight: 25

                    ProgressBar {
                        anchors.fill: parent
                        to: 100
                        value: factorizationController.progress
                    }

                    Text {
                        text: factorizationController.progress.toFixed(1) + "%"
                        anchors.centerIn: parent
                        font.pixelSize: 16
                        color: "black"
                        font.bold: true
                    }
                }
            }
        }

        GroupBox {
            title: "Factors Found"
            Layout.fillWidth: true
            Layout.fillHeight: true

            Text {
                text: factorizationController.factors.join(", ")
                font.pixelSize: 14
                color: "black"
            }
        }

        Text {
            text: factorizationController.useSqrtOptimization ? "Note: Only factors up to sqrt(n) are searched." : "Warning: Searching all factors (inefficient)."
            font.pixelSize: 12
            Layout.alignment: Qt.AlignHCenter
        }
    }
}