package de.peeeq.wurstio.languageserver.requests;

import config.WurstProjectConfig;
import config.WurstProjectConfigData;
import de.peeeq.wurstio.gui.WurstGuiImpl;
import de.peeeq.wurstio.languageserver.ModelManager;
import de.peeeq.wurstio.languageserver.WFile;
import de.peeeq.wurstio.languageserver.WurstLanguageServer;
import de.peeeq.wurstio.mpq.MpqEditor;
import de.peeeq.wurstio.mpq.MpqEditorFactory;
import de.peeeq.wurstscript.WLogger;
import de.peeeq.wurstscript.attributes.CompileError;
import de.peeeq.wurstscript.gui.WurstGui;
import org.eclipse.lsp4j.MessageType;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Optional;

import static de.peeeq.wurstio.languageserver.ProjectConfigBuilder.FILE_NAME;

/**
 * Created by peter on 16.05.16.
 */
public class BuildMap extends MapRequest {

    public BuildMap(WurstLanguageServer languageServer, WFile workspaceRoot, Optional<String> wc3Path, Optional<File> map,
                    List<String> compileArgs) {
        super(languageServer, map, compileArgs, workspaceRoot, wc3Path);
    }

    @Override
    public Object execute(ModelManager modelManager) throws IOException {
        if (modelManager.hasErrors()) {
            throw new RequestFailedException(MessageType.Error, "Fix errors in your code before building a release.\n" + modelManager.getFirstErrorDescription());
        }

        WurstProjectConfigData projectConfig = WurstProjectConfig.INSTANCE.loadProject(workspaceRoot.getFile().toPath().resolve(FILE_NAME));
        if (projectConfig == null) {
            throw new RequestFailedException(MessageType.Error, FILE_NAME + " file doesn't exist or is invalid. " +
                "Please install your project using grill or the wurst setup tool.");
        }

        WLogger.info("buildMap " + map + " " + compileArgs);
        WurstGui gui = new WurstGuiImpl(workspaceRoot.getFile().getAbsolutePath());
        try {
            if (!map.isPresent()) {
                throw new RequestFailedException(MessageType.Error, "Map is null");
            }
            if (!map.get().exists()) {
                throw new RequestFailedException(MessageType.Error, map.get().getAbsolutePath() + " does not exist.");
            }

            MapRequest.mapLastModified = map.get().lastModified();
            MapRequest.mapPath = map.get().getAbsolutePath();

            gui.sendProgress("Copying map");

            // first we copy in same location to ensure validity
            File buildDir = getBuildDir();
            String fileName = projectConfig.getBuildMapData().getFileName();
            Optional<File> targetMap = Optional.of(
                new File(buildDir, fileName.isEmpty() ? projectConfig.getProjectName() + ".w3x" : fileName + ".w3x"));
            CompilationResult result = compileScript(modelManager, gui, targetMap, projectConfig, buildDir, true);

            injectMapData(gui, targetMap, result);

            //noinspection EmptyTryBlock
            try(MpqEditor ignored = MpqEditorFactory.getEditor(targetMap)) {
                // Just finalization
            }

            gui.sendProgress("Done.");
        } catch (CompileError e) {
            WLogger.info(e);
            throw new RequestFailedException(MessageType.Error, "A compilation error occurred when building the map:\n" + e);
        } catch (Exception e) {
            WLogger.warning("Exception occurred", e);
            throw new RequestFailedException(MessageType.Error, "An exception was thrown when building the map:\n" + e);
        } finally {
            if (gui.getErrorCount() == 0) {
                gui.sendFinished();
            }
        }
        return "ok"; // TODO
    }
}