//
// Created by Memer on 24.08.18.
//

#ifndef _DISCORD_H
#define _DISCORD_H

#include <stdbool.h>

#include <curl/curl.h>
#include <jansson.h>

#define LD_API_ENDPOINT "https://discordapp.com/api"

enum
{
    LD_REST_UNAUTHORIZED = 401,
    LD_REST_BAD_REQUEST = 400,
    LD_REST_FORBIDDEN = 403,
    LD_REST_NOT_FOUND = 404,
    LD_REST_METHOD_NOT_ALLOWED = 405,
    LD_REST_TOO_MANY_REQUESTS = 429,
    LD_REST_GATEWAY_UNAVAILABLE = 502,
    LD_REST_SERVER_ERROR = 500,
    LD_REST_UNKNOWN = 1
};

struct ld_context
{
    // TODO: Websocket stuff
    char *bot_token;
    char *session_id;

    bool hello_triggered;

    int heartbeat_interval;
    int heartbeat_acks;
    int sequence;

    struct ld_rest_error *last_rest_status;

    CURL *curl_handle;

    // ld_user_t self;
};

struct ld_context_info
{
    char *bot_token;

    int log_level;
};

struct ld_gateway_bot_resp
{
    char *url;
    int shards;
};

struct ld_rest_error
{
    int what;
    char *text;
};

enum game_types {
    GAME = 0,
    STREAMING = 1
};

enum channel_types {
    GUILD_TEXT,
    DM,
    GUILD_VOICE,
    GROUP_DM,
    GUILD_CATEGORY
};

enum {
    DISPATCH,
    HEARTBEAT,
    IDENTIFY,
    PRESENCE,
    VOICE_STATE,
    VOICE_PING,
    RESUME,
    RECONNECT,
    REQUEST_MEMBERS,
    INVALIDATE_SESSION,
    HELLO,
    HEARTBEAT_ACK
};

typedef struct user {
    char* id;
    char* username;
    char* discriminator;
    char* avatar;
    int bot;
    int mfa_enabled;
    int verified;
    char* email;
} user_t;

typedef struct overwrite
{
    char *id;
    char *type;
    int deny;
    int allow;
} overwrite_t;

typedef struct guild_channel {
    char *id;
    char *guild_id;
    char *name;
    int type;
    int position;
    bool nsfw;
    overwrite_t *permission_overwrites;
    char *topic;
    char *last_message_id;
    int bitrate;
    int user_limit;
    user_t *recipients;
    char *icon;
    char *owner_id;
    char *application_id;
    char *parent_id;
    char *last_pin_timestamp;
} guild_channel_t;

typedef struct thumbnail {
    char* url;
    char* proxy_url;
    int height;
    int width;
} thumbnail_t;

typedef struct video {
    char* url;
    int height;
    int width;
} video_t;

typedef struct image {
    char* url;
    char* proxy_url;
    int height;
    int width;
} image_t;

typedef struct provider {
    char* name;
    char* url;
} provider_t;

typedef struct author {
    char* name;
    char* url;
    char* icon_url;
    char* proxy_icon_url;
} author_t;

typedef struct footer {
    char* text;
    char* icon_url;
    char* proxy_icon_url;
} footer_t;

typedef struct field {
    char* name;
    char* value;
    int _inline;
} field_t;

typedef struct embed {
    char* title;
    char* type;
    char* description;
    char* url;
    char* timestamp;
    int color;
    footer_t footer;
    image_t image;
    thumbnail_t thumbnail;
    video_t video;
    provider_t provider;
    author_t author;
    field_t fields;
} embed_t;

typedef struct dm_channel {
    char *id;
    int is_private;
    user_t recipient;
    char *last_message_id;
} dm_channel_t;

typedef struct game {
    char *name;
    int type;
    char *url; // Only if type is STREAMING (1)
} game_t;

typedef struct presence_update {
    user_t user; // Can be partial
    game_t game; // May be null
    char *guild_id;
    char *status;
    char *roles[200];
} presence_update_t;

typedef struct emoji {
    char* id;
    char* name;
} emoji_t;

typedef struct reaction {
    int counter;
    int me;
    emoji_t _emoji;
} reaction_t;

typedef struct message {
    char* id;
    char* channel_id;
    user_t author;
    char* content;
    char* timestamp;
    char* edited_timestamp;
    int tts;
    int mention_everyone;
    user_t mentions[1024];
    /*
    TODO:
    mention_roles
    attachments
    embeds
    nonce
    */
    embed_t embeds[1024];
    reaction_t reactions[1024];
    int pinned;
    char* webhook_id;
} message_t;

struct ld_modify_channel_obj
{
    char *name;
    int position;
    char *topic;
    int nsfw;
    int bitrate;
    int user_limit;
    overwrite_t *permission_overwrites;
    size_t overwrites_size;
    char *parent_id;
};

struct ld_context *ld_create_context(struct ld_context_info *info);

char *ld_get_gateway(struct ld_context *ctx);
struct ld_gateway_bot_resp *ld_get_gateway_bot(struct ld_context *ctx);
int ld_create_message(struct ld_context *ctx, char *channel_id, char *content);
int ld_get_channel(struct ld_context *ctx, char *channel_id, guild_channel_t *target);
int ld_modify_channel_result(struct ld_context *ctx, char *channel_id, struct ld_modify_channel_obj *modify, guild_channel_t *result);
int ld_modify_channel(struct ld_context *ctx, char *channel_id, struct ld_modify_channel_obj *modify);
int ld_delete_channel(struct ld_context *ctx, char *channel_id);

void ld_channel_obj_to_type(json_t *src, guild_channel_t *channel);

#endif // _DISCORD_H