#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Globalization;
using HeuristicLab.BioBoost.Representation;
using HeuristicLab.Core.Views;
using HeuristicLab.Data;
using HeuristicLab.MainForm;
using System.Drawing;
using System.Windows.Forms;

namespace HeuristicLab.BioBoost.Views {

  [Content(typeof(RegionDetailData), IsDefaultView = false)]
  public partial class BioBoostSolutionCostsView : ItemView {

    public new RegionDetailData Content {
      get { return (RegionDetailData)base.Content; }
      set { base.Content = value; }
    }
    
    public BioBoostSolutionCostsView() {
      InitializeComponent();
    }

    protected override void OnContentChanged() {
      base.OnContentChanged();
      if (Content == null) {
        Clear();
      } else {
        Clear();
        Populate(Content.Solution, Content.RegionName);
      }
    }

    private Dictionary<string, double> costs;
    private Dictionary<String, double> values; 
    private Dictionary<string, List<string>> strings;

    private void AddCost(string name, double value) {
      // ReSharper disable once CompareOfFloatsByEqualityOperator
      if (value == 0) return;
      double oldValue = 0;
      costs.TryGetValue(name, out oldValue);
      costs[name] = oldValue + value;
    }

    private void AddSummableValue(string name, double value) {
      // ReSharper disable once CompareOfFloatsByEqualityOperator
      if (value == 0) return;
      double oldValue = 0;
      values.TryGetValue(name, out oldValue);
      values[name] = oldValue + value;
    }

    private void AddString(string name, string value) {
      if (string.IsNullOrEmpty(value) || value == "0") return;
      List<String> oldValues;
      if (!strings.TryGetValue(name, out oldValues)) {
        oldValues = new List<string>();
        strings[name] = oldValues;
      }
      if (oldValues.Count < 2) {
        oldValues.Add(value);
      }
    }
    

    private void AddSupplierCosts(string name, DoubleArray values, List<int> supplierIndices) {
      if (values == null) return;
      double sum = 0;
      foreach (var supplierIdx in supplierIndices) {
        sum += values[supplierIdx];
      }
      AddCost(name + " Sum", sum);
      if (supplierIndices.Count > 1)
        AddString(name + " Avg", (sum/supplierIndices.Count).ToString(CultureInfo.InvariantCulture));
    }

    private void AddSupplierValues(string name, DoubleArray values, List<int> supplierIndices) {
      if (values == null) return;
      double sum = 0;
      foreach (var supplierIdx in supplierIndices) {
        sum += values[supplierIdx];
      }
      AddSummableValue(name + " Sum", sum);
      if (supplierIndices.Count > 1)
        AddString(name + " Avg", (sum/supplierIndices.Count).ToString(CultureInfo.InvariantCulture));
    }


    private void Populate(BioBoostCompoundSolution solution, string regionName) {
      costsColumn2.DefaultCellStyle.Font = new Font("Lucida Console", 7);
      costsColumn2.DefaultCellStyle.Format = "N0";
      costsColumn2.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;

      costs = new Dictionary<string, double>();
      values = new Dictionary<string, double>();
      strings = new Dictionary<string, List<string>>();
      foreach (var locationName in solution.LocationNames) {
        if (regionName == BioBoostCompoundSolutionView.AllRegionsName || locationName.StartsWith(regionName))
          AddRegion(solution, locationName);
      }

      var totalCost = 0d;
      foreach (var cost in costs) {
        costsDataGridView.Rows.Add(cost.Key, cost.Value);
        totalCost += cost.Value;
      }

      foreach (var value in values) {
        costsDataGridView.Rows.Add(value.Key, value.Value);
      }

      foreach (var value in strings) {
        if (value.Value.Count == 1) {
          double doubleValue;
          if (Double.TryParse(value.Value[0], NumberStyles.Float, CultureInfo.InvariantCulture, out doubleValue)) {
            costsDataGridView.Rows.Add(value.Key, doubleValue);
          } else {
          costsDataGridView.Rows.Add(value.Key, value.Value[0]);
          }
        } else {
          //costsDataGridView.Rows.Add(value.Key, string.Join(",", value.Value));
        }
      }

      /* var total = 0d;
      foreach (var kvp in solution.DoubleValues) {
        var name = kvp.Key;
        if (name.EndsWith(BioBoostProblem.CostsName) || name.EndsWith(BioBoostProblem.CostName)) {
          var sum = 0d;
          for (int i = 0; i < kvp.Value.Length; i++) {
            if (solution.LocationNames[i].StartsWith(regionName) || regionName.Equals(BioBoostCompoundSolutionView.AllRegionsName)) {
              sum += kvp.Value[i];
            }
          }
          if (name.EndsWith(BioBoostProblem.CostName)) {
            name = name.Replace(BioBoostProblem.CostName, string.Empty);
          } else {
            name = name.Replace(BioBoostProblem.CostsName, string.Empty);
          }
          costsDataGridView.Rows.Add(name, sum);
          total += sum;
        }
      } */
      costsTextBox1.Text = totalCost.ToString("N0");
    }

    private void AddRegion(BioBoostCompoundSolution solution, string regionName) {
      var supplierCollector = new SupplierCollector(solution, regionName);
      foreach (var product in supplierCollector.Products) {
        AddSummableValue(LayerDescriptor.ConverterCapacities.NameWithPrefix(product.Name), product.ConverterCapacity);
        AddSummableValue(LayerDescriptor.StorageCapacities.NameWithPrefix(product.Name), product.StorageCapacity);
        AddCost(LayerDescriptor.ConversionCosts.NameWithPrefix(product.Name), product.ConversionCost);
        AddCost(LayerDescriptor.StorageCost.NameWithPrefix(product.Name), product.StorageCost);
        AddCost(LayerDescriptor.ConversionPlantConstructionCost.NameWithPrefix(product.Name), product.ConversionPlantConstructionCost);
        AddCost(LayerDescriptor.ConversionPlantOperationCost.NameWithPrefix(product.Name), product.ConversionPlantOperationCost);
        AddString(LayerDescriptor.TransportTargets.NameWithPrefix(product.Name), product.TargetName);
        AddSupplierValues(LayerDescriptor.AmountsTransportedFromSource.NameWithPrefix(product.Name), product.TransportedAmounts, product.SuppliersIndices);
        AddSupplierValues(LayerDescriptor.TransportDistance.NameWithPrefix(product.Name), product.TransportDistances, product.SuppliersIndices);
        AddSupplierValues(LayerDescriptor.Tkm.NameWithPrefix(product.Name), product.Tkm, product.SuppliersIndices);
        AddSupplierValues(LayerDescriptor.RelativeCostAtSource.NameWithPrefix(product.Name), product.RelativeProductionCosts, product.SuppliersIndices); // TODO: really?
        AddSupplierCosts(LayerDescriptor.TotalCostsAtSource.NameWithPrefix(product.Name), product.AcquisitionCosts, product.SuppliersIndices);
        AddSupplierCosts(LayerDescriptor.DischargeCosts.NameWithPrefix(product.Name), product.DischargeCosts, product.SuppliersIndices);
        AddSupplierCosts(LayerDescriptor.TransportCosts.NameWithPrefix(product.Name), product.TransportCosts, product.SuppliersIndices);
        AddSupplierCosts(LayerDescriptor.HandlingCosts.NameWithPrefix(product.Name), product.HandlingCosts, product.SuppliersIndices);
      }
    }

    private void Clear() {
      costsDataGridView.Rows.Clear();
      costsTextBox1.Text = string.Empty;
    }
  }
}