/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.intellij.codeInsight.daemon.impl;

import com.intellij.codeHighlighting.MainHighlightingPassFactory;
import com.intellij.codeHighlighting.Pass;
import com.intellij.codeHighlighting.TextEditorHighlightingPass;
import com.intellij.codeHighlighting.TextEditorHighlightingPassRegistrar;
import com.intellij.codeInspection.ex.InspectionProfileWrapper;
import com.intellij.codeInspection.ex.LocalInspectionToolWrapper;
import com.intellij.openapi.components.AbstractProjectComponent;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.profile.codeInspection.InspectionProjectProfileManager;
import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.ArrayList;
import java.util.List;

/**
 * @author cdr
*/
public class LocalInspectionsPassFactory extends AbstractProjectComponent implements MainHighlightingPassFactory {
  public LocalInspectionsPassFactory(Project project, TextEditorHighlightingPassRegistrar highlightingPassRegistrar) {
    super(project);
    highlightingPassRegistrar.registerTextEditorHighlightingPass(this, new int[]{Pass.UPDATE_ALL}, new int[]{/*, Pass.POPUP_HINTS*/}, true, Pass.LOCAL_INSPECTIONS);
  }

  @Override
  @NonNls
  @NotNull
  public String getComponentName() {
    return "LocalInspectionsPassFactory";
  }

  @Override
  @Nullable
  public TextEditorHighlightingPass createHighlightingPass(@NotNull PsiFile file, @NotNull final Editor editor) {
    TextRange textRange = calculateRangeToProcess(editor);
    if (textRange == null || !InspectionProjectProfileManager.getInstance(file.getProject()).isProfileLoaded()){
      return new ProgressableTextEditorHighlightingPass.EmptyPass(myProject, editor.getDocument());
    }
    TextRange visibleRange = VisibleHighlightingPassFactory.calculateVisibleRange(editor);
    return new MyLocalInspectionsPass(file, editor.getDocument(), textRange, visibleRange, new DefaultHighlightInfoProcessor());
  }

  @Override
  public TextEditorHighlightingPass createMainHighlightingPass(@NotNull PsiFile file,
                                                               @NotNull Document document,
                                                               @NotNull HighlightInfoProcessor highlightInfoProcessor) {
    final TextRange textRange = file.getTextRange();
    return new MyLocalInspectionsPass(file, document, textRange, LocalInspectionsPass.EMPTY_PRIORITY_RANGE, highlightInfoProcessor);
  }

  private static TextRange calculateRangeToProcess(Editor editor) {
    return FileStatusMap.getDirtyTextRange(editor, Pass.LOCAL_INSPECTIONS);
  }

  private static class MyLocalInspectionsPass extends LocalInspectionsPass {
    public MyLocalInspectionsPass(PsiFile file,
                                  Document document,
                                  @NotNull TextRange textRange,
                                  TextRange visibleRange,
                                  @NotNull HighlightInfoProcessor highlightInfoProcessor) {
      super(file, document, textRange.getStartOffset(), textRange.getEndOffset(), visibleRange, true, highlightInfoProcessor);
    }

    @NotNull
    @Override
    List<LocalInspectionToolWrapper> getInspectionTools(@NotNull InspectionProfileWrapper profile) {
      List<LocalInspectionToolWrapper> tools = super.getInspectionTools(profile);
      List<LocalInspectionToolWrapper> result = new ArrayList<LocalInspectionToolWrapper>(tools.size());
      for (LocalInspectionToolWrapper tool : tools) {
        if (!tool.runForWholeFile()) result.add(tool);
      }
      return result;
    }
  }
}