// This file is under GNU General Public License 3.0

// see LICENSE.txt

#pragma once

#include "pEpEngine.h"

#include "bloblist.h"

typedef enum _PEP_cryptotech {

    PEP_crypt_none = 0,

    PEP_crypt_OpenPGP,

    //    PEP_ctypt_PEP,

    //    PEP_crypt_SMIME,

    //    PEP_crypt_CMS,

    PEP_crypt__count

} PEP_cryptotech;

typedef PEP_STATUS (*decrypt_and_verify_t)(

        PEP_SESSION session, const char *ctext, size_t csize,

        const char *dsigtext, size_t dsigsize,

        char **ptext, size_t *psize, stringlist_t **keylist

    );

typedef PEP_STATUS (*verify_text_t)(

        PEP_SESSION session, const char *text, size_t size,

        const char *signature, size_t sig_size, stringlist_t **keylist

    );

typedef PEP_STATUS (*encrypt_and_sign_t)(

        PEP_SESSION session, const stringlist_t *keylist, const char *ptext,

        size_t psize, char **ctext, size_t *csize

    );

typedef PEP_STATUS (*encrypt_only_t)(

        PEP_SESSION session, const stringlist_t *keylist, const char *ptext,

        size_t psize, char **ctext, size_t *csize

    );

typedef PEP_STATUS (*delete_keypair_t)(PEP_SESSION session, const char *fpr);

typedef PEP_STATUS (*export_key_t)(

        PEP_SESSION session, const char *fpr, char **key_data, size_t *size,

        bool secret

    );

typedef PEP_STATUS (*find_keys_t)(

        PEP_SESSION session, const char *pattern, stringlist_t **keylist

    );

typedef PEP_STATUS (*generate_keypair_t)(

        PEP_SESSION session, pEp_identity *identity

    );

typedef PEP_STATUS (*get_key_rating_t)(

        PEP_SESSION session,

        const char *fpr,

        PEP_comm_type *comm_type

    );

typedef PEP_STATUS (*import_key_t)(PEP_SESSION session, const char *key_data,

        size_t size, identity_list **private_keys);

typedef PEP_STATUS (*recv_key_t)(PEP_SESSION session, const char *pattern);

typedef PEP_STATUS (*send_key_t)(PEP_SESSION session, const char *pattern);

typedef PEP_STATUS (*renew_key_t)(PEP_SESSION session, const char *fpr,

        const timestamp *ts);

typedef PEP_STATUS (*revoke_key_t)(PEP_SESSION session, const char *fpr,

        const char *reason);

typedef PEP_STATUS (*key_expired_t)(PEP_SESSION session, const char *fpr,

        const time_t when, bool *expired);

typedef PEP_STATUS (*key_revoked_t)(PEP_SESSION session, const char *fpr,

        bool *revoked);

typedef PEP_STATUS (*key_created_t)(PEP_SESSION session, const char *fpr,

        time_t *created);

typedef PEP_STATUS (*binary_path_t)(const char **path);

typedef PEP_STATUS (*contains_priv_key_t)(PEP_SESSION session, const char *fpr,

        bool *has_private);

typedef PEP_STATUS (*find_private_keys_t)(

    PEP_SESSION session, const char *pattern, stringlist_t **keylist

);

typedef struct _PEP_cryptotech_t {

    uint8_t id;

    // the following are default values; comm_type may vary with key length or b0rken crypto

    uint8_t unconfirmed_comm_type;

    uint8_t confirmed_comm_type;

    decrypt_and_verify_t decrypt_and_verify;

    verify_text_t verify_text;

    encrypt_and_sign_t encrypt_and_sign;

    encrypt_only_t encrypt_only;

    delete_keypair_t delete_keypair;

    export_key_t export_key;

    find_keys_t find_keys;

    generate_keypair_t generate_keypair;

    get_key_rating_t get_key_rating;

    import_key_t import_key;

    recv_key_t recv_key;

    send_key_t send_key;

    renew_key_t renew_key;

    revoke_key_t revoke_key;

    key_expired_t key_expired;

    key_revoked_t key_revoked;

    key_created_t key_created;

    binary_path_t binary_path;

    contains_priv_key_t contains_priv_key;

    find_private_keys_t find_private_keys;

} PEP_cryptotech_t;

extern PEP_cryptotech_t cryptotech[PEP_crypt__count];

typedef uint64_t cryptotech_mask;

PEP_STATUS init_cryptotech(PEP_SESSION session, bool in_first);

void release_cryptotech(PEP_SESSION session, bool out_last);