db_analyst.h

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/*
-------------------------------------------------------------------------------
                            PLEBBLE
-------------------------------------------------------------------------------
 Copyright (C) 2019-2020 KATLAS Technology. (http://katlastechnology.com)
 Copyright (C) 2017-2020 Marcos Mayorga. (mm@mm-studios.com)
 
 This file is part of our Plebble(R) Platform.
 
 The code below cannot be copied, used for any purpose other than the one
 agreed and/or distributed without the express permission of
 KATLAS Technology.
-------------------------------------------------------------------------------
 
 
*/
#ifndef USGOV_5258ef658e69d93e371145a9a2cab6a584b61927aa62b0084931b2441e224ad9
#define USGOV_5258ef658e69d93e371145a9a2cab6a584b61927aa62b0084931b2441e224ad9
 
#include "diff.h"
#include <list>
#include <vector>
#include <set>
#include <string>
 
namespace us{ namespace gov {
namespace engine {
using namespace std;
 
struct db_analyst {
    typedef diff::hash_t hash_t;
 
    struct block:hash_t {
        block(const hash_t&t);
        ~block();
        block(const block&)=delete;
        block& operator =(const block&)=delete;
        string label(const hash_t& head) const;
        string content() const;
        void dump(int th, const hash_t& head, ostream& os) const;
        void dump(const string& prefix, ostream&os) const;
        void dot(ostream& os) const;
        block* insert(block* b);
        pair<size_t,size_t> rect() const;
        block* root();
 
        mutable size_t w;
        mutable size_t h;
        char type{' '};
        hash_t prevh;
        block* prev{0};
        std::map<hash_t,block*> forks;
    };
 
    struct chains_t {
        chains_t();
        ~chains_t();
        void dump(const hash_t& head, ostream& os) const;
        vector<string> files(const string& home);
        void load(const string& home, const vector<string>& files);
        void load(const string& home);
        void dump(const string& prefix, ostream& os) const;
        void dot(ostream& os) const;
 
        list<block*> roots;
    };
 
    db_analyst(const string& dir);
    void load_blocks();
    void load_head();
    void dump(ostream& os) const;
    void dot(ostream& os) const;
    static void print_chain(const string& home, const string& tip, ostream& os);
    static void print_app20db(const string& file, ostream& os);
    static void print_app30db(const string& file, int detail, ostream& os);
 
    string h;
    hash_t head{0};
    chains_t chains;
};
 
}
}}
 
#endif