aboutsummaryrefslogtreecommitdiffstats
path: root/src/policy_manager/policy_manager.hpp
blob: 1f69474847069a7ecb113a5d514c561911e46c22 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/*
 * Copyright (c) 2018 TOYOTA MOTOR CORPORATION
 *
 * 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.
 */

#ifndef TMCAGLWM_POLICY_MANAGER_HPP
#define TMCAGLWM_POLICY_MANAGER_HPP

#include <functional>
#include <unordered_map>
#include <vector>
#include <queue>

struct json_object;
struct sd_event;
struct sd_event_source;
struct StmState;

class PolicyManager
{

  public:
    explicit PolicyManager();
    ~PolicyManager() = default;

    using Handler = std::function<void(json_object *)>;

    typedef struct
    {
        Handler onStateTransitioned;
        Handler onError;
    } CallbackTable;

    int initialize();
    void registerCallback(CallbackTable callback_table);
    int setInputEventData(json_object *json_in);
    int executeStateTransition();
    void undoState();

    // Do not use these functions
    int transitionState(sd_event_source *source, void *data);
    int timerEvent(sd_event_source *source, uint64_t usec, void *data);

  private:
    // Disable copy and move
    PolicyManager(PolicyManager const &) = delete;
    PolicyManager &operator=(PolicyManager const &) = delete;
    PolicyManager(PolicyManager &&) = delete;
    PolicyManager &operator=(PolicyManager &&) = delete;

    typedef struct EventInfo
    {
        int event;
        std::string role;
        uint64_t delay;
    } EventInfo;

    typedef struct AreaState
    {
        std::string name;
        std::string category;
        std::string role;
    } AreaState;

    typedef std::vector<AreaState> AreaList;
    typedef struct LayoutState
    {
        std::string name;
        std::map<std::string, int> category_num;
        AreaList area_list;
    } LayoutState;

    typedef struct LayerState
    {
        std::string name;
        LayoutState layout_state;
        bool changed;
    } LayerState;

    // Convert map
    std::unordered_map<std::string, int> eventname2no;
    std::unordered_map<std::string, int> categoryname2no;
    std::unordered_map<std::string, int> areaname2no;

    std::unordered_map<std::string, std::string> role2category;
    std::unordered_map<std::string, std::string> category2role;
    std::unordered_map<std::string, std::string> role2defaultarea;

    struct sd_event *event_loop;
    std::queue<EventInfo> event_info_queue;
    std::map<int, struct sd_event_source *> event_source_list;
    std::map<int, std::string> req_role_list;

    CallbackTable callback;

    std::unordered_map<std::string, LayerState> prv_layers;
    std::unordered_map<std::string, LayerState> crr_layers;

    std::unordered_map<std::string, LayoutState> default_layouts;

    std::map<std::string, std::vector<std::string>> role_history;

    void initializeState();
    void initializeLayerState();
    void updateState(int event_data, StmState crr_state);
    void updateLayerState(int event_data, StmState crr_state);
    void createOutputInformation(StmState crr_state, json_object **json_out);
    int setStateTransitionProcessToSystemd(int event, uint64_t delay_ms, std::string role);

    void pushRoleHistory(std::string category, std::string role);
    std::string popRoleHistory(std::string category);

    int loadRoleDb();
    int loadLayoutDb();

    void dumpLayerState(std::unordered_map<std::string, LayerState> &layers);
    void dumpRoleHistory();

    void addStateToJson(const char *name, bool changed,
                        std::string state, json_object **json_out);
    void addStateToJson(const char *layer_name, bool changed,
                        AreaList area_list, json_object **json_out);
    const char *getStringFromJson(json_object *obj, const char *key);
    int inputJsonFilie(const char *file, json_object **obj);

    std::vector<std::string> parseString(std::string str, char delimiter);
    std::string deleteSpace(std::string str);

    static const char *kDefaultRoleDb;
    static const char *kDefaultLayoutDb;
};

#endif // TMCAGLWM_POLICY_MANAGER_HPP