#ifndef EVAPP_H
#define EVAPP_H

#include <sys/queue.h>
#include <event.h>
#include <evhttp.h>
#include <db.h>
#include <ClearSilver.h>

/* MUST MATCH API.H */
#define EVAPP_URIMAP_EXACT  1
#define EVAPP_URIMAP_PREFIX 2
#define EVAPP_VERSION "0.0.1"

struct evapp_context;
typedef struct evapp_context evapp_ctx;

struct evapp_urimap {
  TAILQ_ENTRY(evapp_urimap) entries;
  short type; /* 1: prefix, 2: exact */
  char *uri;
  void (*handler)(struct evapp_context*);
};
TAILQ_HEAD (evapp_urimapq, evapp_urimap);

typedef struct evapp_db_index {
  TAILQ_ENTRY(evapp_db_index) entries;
  char *field;
  char *file;
  char *type;
  int (*callback)(DB*, const DBT*, const DBT*, DBT*);
  DB *p;
} evapp_db_index;
TAILQ_HEAD (evapp_db_indexq, evapp_db_index);

struct evapp_db {
  TAILQ_ENTRY(evapp_db) entries;
  char *name;
  char *file;
  DB *p;
  bool (*load)(evapp_ctx *ctx, u_int64_t id, HDF **hdf);
  bool (*save)(evapp_ctx *ctx, u_int64_t id, HDF *hdf);
  bool (*del)(evapp_ctx *ctx, u_int64_t id);
  bool (*validate)(evapp_ctx *ctx, HDF *hdf);
  bool (*hdf)(evapp_ctx *ctx, void *data, size_t len, HDF **hdf);
  bool (*hdf_template)(evapp_ctx *ctx, HDF **hdf);
  bool (*cleanup)(void);
  struct evapp_db_indexq indices;
};
TAILQ_HEAD (evapp_dbq, evapp_db);

struct evapp_context {
  void *state;  /* app-specific state */
  char *name;

  struct evbuffer *response;
  struct evhttp_request *request;

  /* Application settings */
  char *default_domain;
  /* This mode is used to disable secure cookies and other
   * debug mode items
   */
  bool debug_mode;
  bool default_templates;
  bool xsrf_protection;
  bool scaffold;

  struct event_base *event_base;
  struct evhttp *server;

  struct evapp_urimapq maps;
  struct evapp_dbq dbs;
  DB_ENV *dbenv;
};

#endif