#ifndef DOVEADM_CMD_H
#define DOVEADM_CMD_H

#define DOVEADM_CMD_PARAMS_START .parameters = (const struct doveadm_cmd_param[]){
#define DOVEADM_CMD_PARAM(optP, nameP, typeP, flagP ) { .short_opt = optP, .name = nameP, .type = typeP, .flags = flagP },
#define DOVEADM_CMD_PARAMS_END { .short_opt = '\0', .name = NULL, .type = CMD_PARAM_BOOL, .flags = CMD_PARAM_FLAG_NONE } }

struct doveadm_cmd_ver2;
struct doveadm_mail_cmd_context;

typedef void doveadm_command_t(int argc, char *argv[]);

typedef enum {
	CMD_PARAM_BOOL = 0, /* value will contain 1 (not pointer) */
	CMD_PARAM_INT64,    /* ditto but contains number (not pointer) */
	CMD_PARAM_STR,     /* value contains const char* */
	CMD_PARAM_ARRAY,   /* value contains const char*[] */
	CMD_PARAM_ISTREAM  /* value contains struct istream* */
} doveadm_cmd_param_t;

typedef enum {
	CMD_PARAM_FLAG_NONE		= 0x0,
	CMD_PARAM_FLAG_POSITIONAL 	= 0x1,
	CMD_PARAM_FLAG_DO_NOT_EXPOSE	= 0x2,
} doveadm_cmd_param_flag_t;

struct doveadm_cmd_param {
	char short_opt;
	const char *name;
	doveadm_cmd_param_t type;
	bool value_set;
	struct {
		bool v_bool;
		int64_t v_int64;
		const char* v_string;
		ARRAY_TYPE(const_string) v_array;
		struct istream* v_istream;
	} value;
	doveadm_cmd_param_flag_t flags;
};
ARRAY_DEFINE_TYPE(doveadm_cmd_param_arr_t, struct doveadm_cmd_param);

typedef int doveadm_command_ver2_t(const struct doveadm_cmd_ver2* cmd,
	int argc, const struct doveadm_cmd_param[]);

struct doveadm_cmd {
	doveadm_command_t *cmd;
	const char *name;
	const char *short_usage;
};

struct doveadm_cmd_ver2 {
	doveadm_command_ver2_t *cmd;
	doveadm_command_t *old_cmd;
	struct doveadm_mail_cmd_context *(*mail_cmd)(void);
	const char *name;
	const char *usage;
	const struct doveadm_cmd_param *parameters;
};

ARRAY_DEFINE_TYPE(doveadm_cmd, struct doveadm_cmd);
extern ARRAY_TYPE(doveadm_cmd) doveadm_cmds;

ARRAY_DEFINE_TYPE(doveadm_cmd_ver2, struct doveadm_cmd_ver2);
extern ARRAY_TYPE(doveadm_cmd_ver2) doveadm_cmds_ver2;

extern struct doveadm_cmd doveadm_cmd_dump;
extern struct doveadm_cmd doveadm_cmd_pw;
extern struct doveadm_cmd doveadm_cmd_who;
extern struct doveadm_cmd doveadm_cmd_penalty;
extern struct doveadm_cmd doveadm_cmd_kick;
extern struct doveadm_cmd doveadm_cmd_mailbox_mutf7;
extern struct doveadm_cmd doveadm_cmd_sis_deduplicate;
extern struct doveadm_cmd doveadm_cmd_sis_find;
extern struct doveadm_cmd doveadm_cmd_zlibconnect;

void doveadm_register_cmd(const struct doveadm_cmd *cmd);

const struct doveadm_cmd *
doveadm_cmd_find_with_args(const char *cmd_name, int *argc, char **argv[]);

void doveadm_register_auth_commands(void);
void doveadm_register_director_commands(void);
void doveadm_register_proxy_commands(void);
void doveadm_register_log_commands(void);
void doveadm_register_instance_commands(void);
void doveadm_register_mount_commands(void);
void doveadm_register_replicator_commands(void);
void doveadm_register_dict_commands(void);
void doveadm_register_fs_commands(void);

void doveadm_cmds_init(void);
void doveadm_cmds_deinit(void);

int doveadm_cmd_ver2_to_cmd_wrapper(const struct doveadm_cmd_ver2* cmd,
	int argc, const struct doveadm_cmd_param[]);
int doveadm_cmd_ver2_to_mail_cmd_wrapper(const struct doveadm_cmd_ver2* cmd,
	int argc, const struct doveadm_cmd_param argv[]);

void doveadm_cmd_register_ver2(struct doveadm_cmd_ver2 *cmd);
const struct doveadm_cmd_ver2 *
doveadm_cmd_find_with_args_ver2(const char *cmd_name, int argc, const char *argv[]);
/* Returns FALSE if cmd_name doesn't exist, TRUE if it exists. */
bool doveadm_cmd_try_run_ver2(const char *cmd_name, int argc,
	const char *argv[]);
/* Returns 0 if success, -1 if parameters were invalid. */
int doveadm_cmd_run_ver2(const struct doveadm_cmd_ver2 *cmd,
	int argc, const char *argv[]);

bool doveadm_cmd_param_bool(int argc, const struct doveadm_cmd_param* params, const char *name, bool* value);
bool doveadm_cmd_param_int64(int argc, const struct doveadm_cmd_param* params, const char *name, int64_t* value);
bool doveadm_cmd_param_str(int argc, const struct doveadm_cmd_param* params, const char *name, const char** value);
bool doveadm_cmd_param_array(int argc, struct doveadm_cmd_param* params, const char *name, ARRAY_TYPE(const_string)** value);
bool doveadm_cmd_param_istream(int argc, struct doveadm_cmd_param* params, const char *name, struct istream** value);

extern struct doveadm_cmd_ver2 doveadm_cmd_stop_ver2;
extern struct doveadm_cmd_ver2 doveadm_cmd_reload_ver2;
extern struct doveadm_cmd_ver2 doveadm_cmd_stats_reset_ver2;
extern struct doveadm_cmd_ver2 doveadm_cmd_stats_dump_ver2;
extern struct doveadm_cmd_ver2 doveadm_cmd_stats_top_ver2;

#endif