using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.XtraEditors;

namespace KepGridEditor
{
    /// <summary>
    /// The form well adjust setting.
    /// </summary>
    public partial class FormWellAdjustSetting : DevExpress.XtraEditors.XtraForm
    {
        /// <summary>
        /// Gets or sets the well radius.
        /// </summary>
        public double WellRadius { get; set; } = 100;
        /// <summary>
        /// Gets or sets the value range.
        /// </summary>
        public double ValueRange { get; set; } = 10;
        /// <summary>
        /// Gets or sets the decreasing factor.
        /// </summary>
        public double DecreasingFactor { get; set; } = 0;
        /// <summary>
        /// Gets or sets the dilution factor (for RFB/IDW mode).
        /// </summary>
        public double DilutionFactor { get; set; } = 1.0;

        /// <summary>
        /// Gets the currently selected mode.
        /// </summary>
        public string SelectedMode => comboBoxEditMode.EditValue?.ToString() ?? "默认";

        /// <summary>
        /// Initializes a new instance of the <see cref="FormWellAdjustSetting"/> class.
        /// </summary>
        public FormWellAdjustSetting()
        {
            InitializeComponent();

            // 在窗体加载后初始化界面状态
            this.Load += FormWellAdjustSetting_Load;

            // 初始化文本框显示
            this.txtRadius.Text = $"{WellRadius}";
            this.txtDiffrence.Text = $"{ValueRange}";
            this.txtFactor.Text = $"{DecreasingFactor}";
            this.textEditDilution.Text = $"{DilutionFactor}";
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="FormWellAdjustSetting"/> class with initial values.
        /// </summary>
        /// <param name="wellRadius">The well radius.</param>
        /// <param name="valueRange">The value range.</param>
        /// <param name="decreasingFactor">The decreasing factor.</param>
        public FormWellAdjustSetting(double wellRadius, double valueRange, double decreasingFactor)
            : this()
        {
            this.WellRadius = wellRadius;
            this.ValueRange = valueRange;
            this.DecreasingFactor = decreasingFactor;

            this.txtRadius.Text = $"{WellRadius}";
            this.txtDiffrence.Text = $"{ValueRange}";
            this.txtFactor.Text = $"{this.DecreasingFactor}";
        }

        /// <summary>
        /// 窗体加载事件：设置默认选项并更新UI
        /// </summary>
        private void FormWellAdjustSetting_Load(object sender, EventArgs e)
        {
            if (comboBoxEditMode.Properties.Items.Contains("默认"))
            {
                comboBoxEditMode.EditValue = "默认";
                UpdateUIForCurrentMode();
            }
        }

        /// <summary>
        /// 根据当前选择的模式，更新控件的启用状态
        /// </summary>
        private void UpdateUIForCurrentMode()
        {
            string mode = SelectedMode;

            bool isDefault = mode == "默认";
            bool isRfbOrIdw = (mode == "RFB" || mode == "IDW");

            // --- 默认模式：启用前三个参数 ---
            txtRadius.Enabled = isDefault;
            txtFactor.Enabled = isDefault;
            labelControl1.Enabled = isDefault;
            labelControl3.Enabled = isDefault;

            // --- RFB / IDW 模式：仅启用抽稀倍数 ---
            textEditDilution.Enabled = isRfbOrIdw;
            labelControl4.Enabled = isRfbOrIdw;

            // 可选：让非活动控件看起来更不显眼
            txtRadius.Properties.Appearance.BackColor = isDefault ? SystemColors.Window : SystemColors.Control;
            txtFactor.Properties.Appearance.BackColor = isDefault ? SystemColors.Window : SystemColors.Control;
            textEditDilution.Properties.Appearance.BackColor = isRfbOrIdw ? SystemColors.Window : SystemColors.Control;
        }

        /// <summary>
        /// 当算法模式改变时，更新界面控件的可用性
        /// </summary>
        private void comboBoxEditMode_SelectedIndexChanged(object sender, EventArgs e)
        {
            UpdateUIForCurrentMode();
        }

        /// <summary>
        /// 确定按钮点击事件
        /// </summary>
        private void btnOK_Click(object sender, EventArgs e)
        {
            try
            {
                string mode = SelectedMode;

                if (mode == "默认")
                {
                    this.WellRadius = Convert.ToDouble(this.txtRadius.Text);
                    this.ValueRange = Convert.ToDouble(this.txtDiffrence.Text);
                    this.DecreasingFactor = Convert.ToDouble(this.txtFactor.Text);
                    DilutionFactor = 0; // 不使用
                }
                else
                {
                    // RFB 或 IDW 模式：只读取抽稀倍数
                    if (!double.TryParse(textEditDilution.Text.Trim(), out double dilution) || dilution < 1)
                        throw new ArgumentException($"【{mode}抽稀倍数】必须是大于1的数值。");

                    // 保存结果
                    DilutionFactor = dilution;
                    // 其他参数不保存或设为默认
                    this.ValueRange = Convert.ToDouble(this.txtDiffrence.Text);
                    DecreasingFactor = 0;
                }

                this.DialogResult = DialogResult.OK;
                this.Close();
            }
            catch (Exception ex)
            {
                XtraMessageBox.Show(ex.Message, "输入错误", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }

        /// <summary>
        /// 取消按钮点击事件
        /// </summary>
        private void btnCancel_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.Cancel;
            this.Close();
        }
    }
}