// The contents of this file are subject to the Mozilla Public License
// Version 1.0 (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.mozilla.org/MPL/ 
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License. 
// 
// The Original Code is the Berkeley Open Infrastructure for Network Computing. 
// 
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved. 
// 
// Contributor(s):
//

// If you change anything, make sure you also change:
// types.C         (to write and parse it)
// client_state.C  (to cross-link objects)
//

#ifndef _TYPES_
#define _TYPES_

#include <vector>
#include <stdio.h>

#include "hostinfo.h"

#define STDERR_MAX_LEN 4096

class FILE_XFER;

class PROJECT {
public:
    char name[256];             // descriptive.  not unique
    char domain[256];           // can't have any slashes
    char scheduler_url[256];    // POST here
    char url_source[256];       // GET here to find latest scheduler_url
    char email_addr[256];       // user's account on this project
    char authenticator[256];    // user's authenticator on this project
    int rpc_seqno;
    int hostid;
    int next_request_time;      // don't contact server until this time
    double resource_share;      // determines project's resource share
                                // relative to other projects.  Arbitrary scale.
    double exp_avg_cpu;         // exponentially weighted cpu time
    int exp_avg_mod_time;       // last time average was changed

    int parse(FILE*);
    int write(FILE*);
};

struct APP {
    char name[256];
    int version_num;
        // use this version number for new results
    PROJECT* project;

    int parse(FILE*);
    int write(FILE*);
};

struct FILE_INFO {
    char name[256];
    char url[256];          // TODO: allow multiple URLs
    char md5_cksum[33];
    double nbytes;
    bool generated_locally; // file is produced by app
    bool file_present;
    bool executable;
    bool uploaded;          // file has been uploaded
    bool upload_when_present;
    bool sticky;            // don't delete unless instructed to do so
    FILE_XFER* file_xfer;   // nonzero if in the process of being up/downloaded
    PROJECT* project;
    int ref_cnt;

    int parse(FILE*);
    int write(FILE*, bool to_server);
    int delete_file();      // attempt to delete the underlying file
};

// Describes a connection between a file and a workunit, result, or application.
// In the first two cases,
// the app will either use open() or fopen() to access the file
// (in which case "open_name" is the name it will use)
// or the app will be connected by the given fd (in which case fd is nonzero)
//
struct FILE_REF {
    char file_name[256];
    char open_name[256];
    int fd;
    bool main_program;
    FILE_INFO* file_info;

    int parse(FILE*, char*);
    int write(FILE*, char*);
};

struct APP_VERSION {
    char app_name[256];
    //char file_name[256];
    int version_num;
    APP* app;
    PROJECT* project;
    //FILE_INFO* file_info;
    vector<FILE_REF> app_files;

    int parse(FILE*);
    int write(FILE*);
};

struct WORKUNIT {
    char name[256];
    char app_name[256];
    int version_num;
        // This isn't sent from the server.
        // Instead, the client picks an app version
        // (TODO: use alpha/beta/prod scheme)
    char command_line[256];
    char env_vars[256];         // environment vars in URL format
    vector<FILE_REF> input_files;
    PROJECT* project;
    APP* app;
    APP_VERSION* avp;
    int ref_cnt;

    int parse(FILE*);
    int write(FILE*);
};

struct RESULT {
    char name[256];
    char wu_name[256];
    vector<FILE_REF> output_files;
    bool is_active;         // an app is currently running for this
    bool is_compute_done;   // computation finished
    bool is_server_ack;     // ack received from scheduling server
    double cpu_time;
    int exit_status;
    char stderr_out[STDERR_MAX_LEN];
    APP* app;
    WORKUNIT* wup;
    PROJECT* project;

    int parse(FILE*, char* end_tag);
    int write(FILE*, bool to_server);
    bool is_upload_done();    // files uploaded?
};

#endif