package com.onaro.sanscreen.client.view;

import com.onaro.sanscreen.client.view.CompositeDirector.ViewAdapter;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class ViewSorter {
    /* Desired order of all microviews.  Each time we build a set of microviews we will sort them based on this list for consistency. */
    private static final List<String> MICRO_VIEW_ORDER = new ArrayList<String>();
    static {
        MICRO_VIEW_ORDER.add("views.inventory.summary");                  // Summary (landing page) //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.properties");         // Properties //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.sa.properties");                      // Target Element Properties //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.reported.by");        // Data sources //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.changes");            // Changes //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.perf.changes");                       // Performance Changes //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.tasks.changes");                      // Task Changes //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.micro.ports");              // Ports //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.perf.micro.traffic.analyzer");        // Switch Port Performance //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.performance.dialog.traffic.analyzer");// Switch Port Performance //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.micro.iscsiSessions");      // iSCSI sessions //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.networkPortals");     // Network Portals //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.zone");               // Zone Members //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.masking");            // Masking //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.storage.nodes");            // Storage Nodes //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.disk");               // Disks //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.storage.pools");            // Storage Pools //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.internal.volume");    // Internal Volumes //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.virtual.storage");    // Virtual Storage //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.backend.volume");     // Backend Volumes //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.micro.volume.storage");     // Volumes //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.micro.qtree");              // Qtrees //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.nas.micro.quotas");                   // Quotas //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.nas.micro.shares");                   // Shares //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.file.systems");             // File Systems //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.path");                     // Paths //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.micro.apls");               // Policies //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.sa.policies");                        // Policies //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.sa.violation.list");                  // Violations //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.violation");                // SAN Path Violations //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.sa.violation.event");                 // Violation Event //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.sa.violation.impact.details");        // Violations Impact Details //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.micro.applications");       // Applications //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.host");                     // Hosts //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.datastore");                // Data Stores //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.performance.center.datastore");       // Data Store Performance //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.vm");                       // Virtual Machines //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.hostvirtualization.vm.utilization");  // VM Performance //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.inventory.virtualMachineDisks");      // VMDKs //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.inventory.virtualMachineDisks.performance");// VMDK Performance //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.pm.reservation");                     // Reservations //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.pm.reservation.violations");          // Reservation Violations //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.tasks.errors");                       // Task List Errors //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.tasks.violations");                   // Task Future Violations //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.switch.affected.paths");              // Migrations Affected Paths //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.switch.migration.impact");            // Migrations Impact //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.switch.migration.qa");                // Migration Quality Assurance //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.switch.migration.switches");          // Migrated Switches //$NON-NLS-1$
        
        MICRO_VIEW_ORDER.add("views.perf.micro.traffic.analyzer");        // Switch Port Performance //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.performance.dialog.traffic.analyzer");// Switch Port Performance //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.switch.performance.port.micro");    // Switch port performance micro //$NON-NLS-1$
        MICRO_VIEW_ORDER.add("views.switch.performance.port.alert");    // Switch port performance alert //$NON-NLS-1$

    };
    
    /* Desired order of all center views.  Each time we build a set of center views we will sort them based on this list for consistency. */
    private static final List<String> CENTER_VIEW_ORDER = new ArrayList<String>();
    static {
        CENTER_VIEW_ORDER.add("views.performance.dialog.traffic.analyzer");// Switch Port Performance //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.inventory.topology");                 // Inventory Topology //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.performance.port.balance.topology");  // Port Balance Topology //$NON-NLS-1$
        
        CENTER_VIEW_ORDER.add("views.inventory.host");                     // Hosts //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.performance.host.micro");             // Host Performance //$NON-NLS-1$
        
        CENTER_VIEW_ORDER.add("views.inventory.virtualMachineDisks");      // VMDKs //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.inventory.virtualMachineDisks.performance");// VMDK Performance //$NON-NLS-1$
        
        CENTER_VIEW_ORDER.add("views.inventory.vm");                       // Virtual Machines //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.hostvirtualization.vm.utilization.center");// Virtual Machine Performance //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.hostvirtualization.vm.utilization");  // Virtual Machine Performance //$NON-NLS-1$
        
        CENTER_VIEW_ORDER.add("views.inventory.micro.volume.storage");     // Volumes //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.si.micro.virtualVolume");             // Virtual Volumes //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.inventory.micro.internal.volume");    // Internal Volumes //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.si.micro.virtualInternalVolume");     // Virtual Internal Volumes //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.inventory.micro.backend.volume");     // Backend Volumes //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.inventory.micro.disk");               // Disks //$NON-NLS-1$
        
        CENTER_VIEW_ORDER.add("views.tasks.actions");                      // Tasks //$NON-NLS-1$
        CENTER_VIEW_ORDER.add("views.switch.performance.port.violation");  // Switch port violations //$NON-NLS-1$
    };

    private static final Comparator<ViewAdapter> MICRO_VIEW_ADAPTER_COMPARATOR = new Comparator<ViewAdapter>() {
        @Override
        public int compare(ViewAdapter a1, ViewAdapter a2) {
            int i1 = MICRO_VIEW_ORDER.indexOf(a1.getView().getName());
            int i2 = MICRO_VIEW_ORDER.indexOf(a2.getView().getName());
            
            if(i1 == -1) {
                throw new IllegalArgumentException("View '" + a1.getView().getName() + "' does not exist in ViewSorter's MICRO_VIEW_ORDER list.  Please add it."); //$NON-NLS-1$ //$NON-NLS-2$
            }
            if(i2 == -1) {
                throw new IllegalArgumentException("View '" + a2.getView().getName() + "' does not exist in ViewSorter's MICRO_VIEW_ORDER list.  Please add it."); //$NON-NLS-1$ //$NON-NLS-2$
            }
            return(i1 - i2);
        }
    };

    private static final Comparator<ViewAdapter> CENTER_VIEW_ADAPTER_COMPARATOR = new Comparator<ViewAdapter>() {

        @Override
        public int compare(ViewAdapter a1, ViewAdapter a2) {
            int i1 = CENTER_VIEW_ORDER.indexOf(a1.getView().getName());
            int i2 = CENTER_VIEW_ORDER.indexOf(a2.getView().getName());
            
            if(i1 == -1) {
                throw new IllegalArgumentException("View '" + a1.getView().getName() + "' does not exist in ViewSorter's CENTER_VIEW_ORDER list.  Please add it."); //$NON-NLS-1$ //$NON-NLS-2$
            }
            if(i2 == -1) {
                throw new IllegalArgumentException("View '" + a2.getView().getName() + "' does not exist in ViewSorter's CENTER_VIEW_ORDER list.  Please add it."); //$NON-NLS-1$ //$NON-NLS-2$
            }
            return(i1 - i2);
        }
    };
    
    /**
     * Sorts the list of microview adapters in place based on the global sort order.
     * 
     * @param microViewAdapters the list of microview adapters to sort.
     */
    public static void sortMicroViewAdapters(List<? extends ViewAdapter> microViewAdapters) {
        Collections.sort(microViewAdapters, MICRO_VIEW_ADAPTER_COMPARATOR);
    }

    /**
     * Sorts the list of center view adapters in place based on the global sort order.
     * 
     * @param centerViewAdapters the list of microview adapters to sort.
     */
    public static void sortCenterViewAdapters(List<? extends ViewAdapter> centerViewAdapters) {
        Collections.sort(centerViewAdapters, CENTER_VIEW_ADAPTER_COMPARATOR);
    }
}