/**
 * ============LICENSE_START====================================================
 * org.onap.aaf
 * ===========================================================================
 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * 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.
 * ============LICENSE_END====================================================
 *
 */

package org.onap.aaf.cadi.aaf.client;


import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.GregorianCalendar;

import org.onap.aaf.misc.env.APIException;
import org.onap.aaf.misc.env.Data;
import org.onap.aaf.misc.env.Data.TYPE;
import org.onap.aaf.misc.env.util.Chrono;
import org.onap.aaf.misc.rosetta.env.RosettaDF;
import org.onap.aaf.misc.rosetta.env.RosettaEnv;

import aaf.v2_0.Approval;
import aaf.v2_0.Approvals;
import aaf.v2_0.CredRequest;
import aaf.v2_0.Keys;
import aaf.v2_0.NsRequest;
import aaf.v2_0.Nss;
import aaf.v2_0.Nss.Ns;
import aaf.v2_0.Perm;
import aaf.v2_0.PermKey;
import aaf.v2_0.PermRequest;
import aaf.v2_0.Perms;
import aaf.v2_0.Pkey;
import aaf.v2_0.Request;
import aaf.v2_0.Role;
import aaf.v2_0.RoleKey;
import aaf.v2_0.RolePermRequest;
import aaf.v2_0.RoleRequest;
import aaf.v2_0.Roles;
import aaf.v2_0.UserRole;
import aaf.v2_0.UserRoleRequest;
import aaf.v2_0.UserRoles;
import aaf.v2_0.Users;
import aaf.v2_0.Users.User;

public class Examples {
    public static <C> String print(RosettaEnv env, String nameOrContentType, boolean optional) throws APIException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        // Discover ClassName
        String className = null;
        String version = null;
        TYPE type = TYPE.JSON; // default
        if (nameOrContentType.startsWith("application/")) {
            for (String ct : nameOrContentType.split("\\s*,\\s*")) {
                for (String elem : ct.split("\\s*;\\s*")) {
                    if (elem.endsWith("+json")) {
                        type = TYPE.JSON;
                        className = elem.substring(elem.indexOf('/')+1, elem.length()-5);
                    } else if (elem.endsWith("+xml")) {
                        type = TYPE.XML;
                        className = elem.substring(elem.indexOf('/')+1, elem.length()-4);
                    } else if (elem.startsWith("version=")) {
                        version = elem.substring(8);
                    }
                }
                if (className!=null && version!=null)
                    break;
            }
            if (className==null) {
                throw new APIException(nameOrContentType + " does not contain Class Information");
            }
        } else {
            className = nameOrContentType;
        }

        // No Void.class in aaf.v2_0 package causing errors when trying to use a newVoidv2_0
        // method similar to others in this class. This makes it work, but is it right?
        if ("Void".equals(className))
            return "";

        if ("1.1".equals(version)) {
            version = "v1_0";
        } else if (version!=null) {
            version = "v" + version.replace('.', '_');
        } else {
            version = "v2_0";
        }

        Class<?> cls=null;
        int minorIdx = version.indexOf('_');
        if(minorIdx<0) {
            throw new APIException("Invalid Interface Version " + version);
        }
        int minor = Integer.parseInt(version.substring(minorIdx+1));
        String vprefix=version.substring(0, minorIdx+1);
        while(cls==null && minor>=0) {
            try {
                cls = Examples.class.getClassLoader().loadClass("aaf."+vprefix+minor+'.'+className);
            } catch (ClassNotFoundException e) {
                if(--minor<0) {
                    throw new APIException("No Example for Version " + version + " found.");
                }
            }
        }

        if(cls==null) {
            throw new APIException("ERROR: " + "aaf."+vprefix+"X not found.");
        }

        Method meth;
        try {
            meth = Examples.class.getDeclaredMethod("new"+cls.getSimpleName()+vprefix+minor,boolean.class);
        } catch (Exception e) {
            throw new APIException("ERROR: " + cls.getName() + " does not have an Example in Code.  Request from AAF Developers");
        }

        RosettaDF<C> df = env.newDataFactory(cls);
        df.option(Data.PRETTY);

        Object data = meth.invoke(null,optional);

        @SuppressWarnings("unchecked")
        String rv = df.newData().load((C)data).out(type).asString();
//        Object obj = df.newData().in(type).load(rv).asObject();
        return rv;
    }

    /*
     *  Set Base Class Request (easier than coding over and over)
     */
    private static void setOptional(Request req) {
        GregorianCalendar gc = new GregorianCalendar();
        req.setStart(Chrono.timeStamp(gc));
        gc.add(GregorianCalendar.MONTH, 6);
        req.setEnd(Chrono.timeStamp(gc));
//        req.setForce("false");

    }

    @SuppressWarnings("unused")
    private static Request newRequestv2_0(boolean optional) {
        Request r = new Request();
        setOptional(r);
        return r;
    }
    @SuppressWarnings("unused")
    private static RolePermRequest newRolePermRequestv2_0(boolean optional) {
        RolePermRequest rpr = new RolePermRequest();
        Pkey pkey = new Pkey();
        pkey.setType("org.osaaf.myns.mytype");
        pkey.setInstance("myInstance");
        pkey.setAction("myAction");
        rpr.setPerm(pkey);
        rpr.setRole("org.osaaf.myns.myrole");
        if (optional)setOptional(rpr);
        return rpr;
    }

    @SuppressWarnings("unused")
    private static Roles newRolesv2_0(boolean optional) {
        Role r;
        Pkey p;
        Roles rs = new Roles();
    r = new Role();
        rs.getRole().add(r);
        r.setName("org.osaaf.myns.myRole");
    p = new Pkey();
        r.getPerms().add(p);
        p.setType("org.osaaf.myns.myType");
        p.setInstance("myInstance");
        p.setAction("myAction");

    p = new Pkey();
        r.getPerms().add(p);
        p.setType("org.osaaf.myns.myType");
        p.setInstance("myInstance");
        p.setAction("myOtherAction");

    r = new Role();
        rs.getRole().add(r);
        r.setName("org.osaaf.myns.myOtherRole");
    p = new Pkey();
        r.getPerms().add(p);
        p.setType("org.osaaf.myns.myOtherType");
        p.setInstance("myInstance");
        p.setAction("myAction");

    p = new Pkey();
        r.getPerms().add(p);
        p.setType("org.osaaf.myns.myOthertype");
        p.setInstance("myInstance");
        p.setAction("myOtherAction");

        return rs;
    }


    @SuppressWarnings("unused")
    private static PermRequest newPermRequestv2_0(boolean optional) {
        PermRequest pr = new PermRequest();
        pr.setType("org.osaaf.myns.myType");
        pr.setInstance("myInstance");
        pr.setAction("myAction");
        if (optional) {
            pr.setDescription("Short and meaningful verbiage about the Permission");

            setOptional(pr);
        }
        return pr;
    }

    @SuppressWarnings("unused")
    private static Perm newPermv2_0(boolean optional) {
        Perm pr = new Perm();
        pr.setType("org.osaaf.myns.myType");
        pr.setInstance("myInstance");
        pr.setAction("myAction");
        pr.getRoles().add("org.osaaf.aaf.myRole");
        pr.getRoles().add("org.osaaf.aaf.myRole2");
        pr.setDescription("This is my description, and I'm sticking with it");
        if (optional) {
            pr.setDescription("Short and meaningful verbiage about the Permission");
        }
        return pr;
    }


    @SuppressWarnings("unused")
    private static PermKey newPermKeyv2_0(boolean optional) {
        PermKey pr = new PermKey();
        pr.setType("org.osaaf.myns.myType");
        pr.setInstance("myInstance");
        pr.setAction("myAction");
        return pr;
    }

    @SuppressWarnings("unused")
    private static Perms newPermsv2_0(boolean optional) {
        Perms perms = new Perms();
        Perm p=new Perm();
        perms.getPerm().add(p);
        p.setType("org.osaaf.myns.myType");
        p.setInstance("myInstance");
        p.setAction("myAction");
        p.getRoles().add("org.osaaf.myns.myRole");
        p.getRoles().add("org.osaaf.myns.myRole2");


    p=new Perm();
        perms.getPerm().add(p);
        p.setType("org.osaaf.myns.myOtherType");
        p.setInstance("myInstance");
        p.setAction("myOtherAction");
        p.getRoles().add("org.osaaf.myns.myRole");
        p.getRoles().add("org.osaaf.myns.myRole2");

        return perms;

    }

    @SuppressWarnings("unused")
    private static UserRoleRequest newUserRoleRequestv2_0(boolean optional) {
        UserRoleRequest urr = new UserRoleRequest();
        urr.setRole("org.osaaf.myns.myRole");
        urr.setUser("ab1234@people.osaaf.org");
        if (optional) setOptional(urr);
        return urr;
    }

    @SuppressWarnings("unused")
    private static NsRequest newNsRequestv2_0(boolean optional) {
        NsRequest nr = new NsRequest();
        nr.setName("org.osaaf.myns");
        nr.getResponsible().add("ab1234@people.osaaf.org");
        nr.getResponsible().add("cd5678@people.osaaf.org");
        nr.getAdmin().add("zy9876@people.osaaf.org");
        nr.getAdmin().add("xw5432@people.osaaf.org");
        if (optional) {
            nr.setDescription("This is my Namespace to set up");
            nr.setType("APP");
            setOptional(nr);
        }
        return nr;
    }


    @SuppressWarnings("unused")
    private static Nss newNssv2_0(boolean optional) {
        Ns ns;

        Nss nss = new Nss();
        ns = new Nss.Ns();
        nss.getNs().add(ns);
        ns.setName("org.osaaf.myns");
        ns.getResponsible().add("ab1234@people.osaaf.org");
        ns.getResponsible().add("cd5678@people.osaaf.org");
        ns.getAdmin().add("zy9876@people.osaaf.org");
        ns.getAdmin().add("xw5432@people.osaaf.org");
        ns.setDescription("This is my Namespace to set up");
        ns = new Nss.Ns();
        nss.getNs().add(ns);
        ns.setName("org.osaaf.myOtherNs");
        ns.getResponsible().add("ab1234@people.osaaf.org");
        ns.getResponsible().add("cd5678@people.osaaf.org");
        ns.getAdmin().add("zy9876@people.osaaf.org");
        ns.getAdmin().add("xw5432@people.osaaf.org");

        return nss;
    }
    @SuppressWarnings("unused")
    private static RoleRequest newRoleRequestv2_0(boolean optional) {
        RoleRequest rr = new RoleRequest();
        rr.setName("org.osaaf.myns.myRole");
        if (optional) {
            rr.setDescription("This is my Role");
            setOptional(rr);
        }
        return rr;
    }

    @SuppressWarnings("unused")
    private static CredRequest newCredRequestv2_0(boolean optional) {
        CredRequest cr = new CredRequest();
        cr.setId("myID@fully.qualified.domain");
        if (optional) {
            cr.setType(2);
            cr.setEntry("0x125AB256344CE");
        } else {
            cr.setPassword("This is my provisioned password");
        }

        return cr;
    }

    @SuppressWarnings("unused")
    private static Users newUsersv2_0(boolean optional) {
        User user;

        Users users = new Users();
    user = new Users.User();
        users.getUser().add(user);
        user.setId("ab1234@people.osaaf.org");
        GregorianCalendar gc = new GregorianCalendar();
        user.setExpires(Chrono.timeStamp(gc));

    user = new Users.User();
        users.getUser().add(user);
        user.setId("zy9876@people.osaaf.org");
        user.setExpires(Chrono.timeStamp(gc));

        return users;
    }

    @SuppressWarnings("unused")
    private static Role newRolev2_0(boolean optional) {
        Role r = new Role();
        Pkey p;
        r.setName("org.osaaf.myns.myRole");
        r.getPerms().add(p = new Pkey());
        p.setType("org.osaaf.myns.myType");
        p.setInstance("myInstance");
        p.setAction("myAction");

        return r;
    }

    @SuppressWarnings("unused")
    private static RoleKey newRoleKeyv2_0(boolean optional) {
        RoleKey r = new RoleKey();
        Pkey p;
        r.setName("org.osaaf.myns.myRole");
        return r;
    }

    @SuppressWarnings("unused")
    private static Keys newKeysv2_0(boolean optional) {
        Keys ks = new Keys();
        ks.getKey().add("Reponse 1");
        ks.getKey().add("Response 2");
        return ks;
    }

    @SuppressWarnings("unused")
    private static UserRoles newUserRolesv2_0(boolean optional) {
        UserRoles urs = new UserRoles();
        UserRole ur = new UserRole();
        ur.setUser("xy1234");
        ur.setRole("com.test.myapp.myRole");
        ur.setExpires(Chrono.timeStamp());
        urs.getUserRole().add(ur);

        ur = new UserRole();
        ur.setUser("yx4321");
        ur.setRole("com.test.yourapp.yourRole");
        ur.setExpires(Chrono.timeStamp());
        urs.getUserRole().add(ur);
        return urs;
    }


    @SuppressWarnings("unused")
    private static Approvals newApprovalsv2_0(boolean optional) {
        Approvals as = new Approvals();
        Approval a = new Approval();
        a.setApprover("MyApprover");
        a.setId("MyID");
        a.setMemo("My memo (and then some)");
        a.setOperation("MyOperation");
        a.setStatus("MyStatus");
        a.setTicket("MyTicket");
        a.setType("MyType");
        a.setUpdated(Chrono.timeStamp());
        a.setUser("MyUser");
        as.getApprovals().add(a);
        a = new Approval();
        a.setApprover("MyApprover2");
        a.setId("MyID2");
        a.setMemo("My memo (and then some)2");
        a.setOperation("MyOperation2");
        a.setStatus("MyStatus2");
        a.setTicket("MyTicket2");
        a.setType("MyType2");
        a.setUpdated(Chrono.timeStamp());
        a.setUser("MyUser2");
        as.getApprovals().add(a);
        return as;
    }

    @SuppressWarnings("unused")
    private static Approval newApprovalv2_0(boolean optional) {
        Approval a = new Approval();
        a.setApprover("MyApprover");
        a.setId("MyID");
        a.setMemo("My memo (and then some)");
        a.setOperation("MyOperation");
        a.setStatus("MyStatus");
        a.setTicket("MyTicket");
        a.setType("MyType");
        a.setUpdated(Chrono.timeStamp());
        a.setUser("MyUser");
        return a;
    }



    @SuppressWarnings("unused")
    private static aaf.v2_0.Error newErrorv2_0(boolean optional) {
        aaf.v2_0.Error err = new aaf.v2_0.Error();
        err.setMessageId("SVC1403");
        err.setText("MyText %s, %s: The last three digits are usually the HTTP Code");
        err.getVariables().add("Variable 1");
        err.getVariables().add("Variable 2");
        return err;
    }

}