#include "euicc.private.h"
#include "es10c.h"

#include "derutil.h"
#include "hexutil.h"
#include "base64.h"

#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

int es10c_get_profiles_info(struct euicc_ctx *ctx, struct es10c_profile_info_list **profileInfoList)
{
    int fret = 0;
    struct derutils_node n_request = {
        .tag = 0xBF2D, // ProfileInfoListRequest
    };
    uint32_t reqlen;
    uint8_t *respbuf = NULL;
    unsigned resplen;

    struct derutils_node tmpnode, n_profileInfoListOk, n_ProfileInfo;

    struct es10c_profile_info_list *list_wptr;

    int tmpint;

    *profileInfoList = NULL;

    reqlen = sizeof(ctx->apdu_request_buffer.body);
    if (euicc_derutil_pack(ctx->apdu_request_buffer.body, &reqlen, &n_request))
    {
        goto err;
    }

    if (es10x_command(ctx, &respbuf, &resplen, ctx->apdu_request_buffer.body, reqlen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, n_request.tag, respbuf, resplen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&n_profileInfoListOk, 0xA0, tmpnode.value, tmpnode.length) < 0)
    {
        goto err;
    }

    n_ProfileInfo.self.ptr = n_profileInfoListOk.value;
    n_ProfileInfo.self.length = 0;

    while (euicc_derutil_unpack_next(&n_ProfileInfo, &n_ProfileInfo, n_profileInfoListOk.value, n_profileInfoListOk.length) == 0)
    {
        struct es10c_profile_info_list *p;

        if (n_ProfileInfo.tag != 0xE3)
        {
            continue;
        }

        p = malloc(sizeof(struct es10c_profile_info_list));
        if (!p)
        {
            goto err;
        }

        memset(p, 0, sizeof(*p));

        tmpnode.self.ptr = n_ProfileInfo.value;
        tmpnode.self.length = 0;

        p->profileState = ES10C_PROFILE_STATE_NULL;
        p->profileClass = ES10C_PROFILE_CLASS_NULL;
        p->iconType = ES10C_ICON_TYPE_NULL;

        while (euicc_derutil_unpack_next(&tmpnode, &tmpnode, n_ProfileInfo.value, n_ProfileInfo.length) == 0)
        {
            switch (tmpnode.tag)
            {
            case 0x5A:
                euicc_hexutil_bin2gsmbcd(p->iccid, sizeof(p->iccid), tmpnode.value, tmpnode.length);
                break;
            case 0x4F:
                euicc_hexutil_bin2hex(p->isdpAid, sizeof(p->isdpAid), tmpnode.value, tmpnode.length);
                break;
            case 0x9F70:
                tmpint = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);
                switch (tmpint)
                {
                case ES10C_PROFILE_STATE_DISABLED:
                case ES10C_PROFILE_STATE_ENABLED:
                    p->profileState = tmpint;
                    break;
                default:
                    p->profileState = ES10C_PROFILE_STATE_UNDEFINED;
                    break;
                }
                break;
            case 0x90:
                p->profileNickname = malloc(tmpnode.length + 1);
                if (p->profileNickname)
                {
                    memcpy(p->profileNickname, tmpnode.value, tmpnode.length);
                    p->profileNickname[tmpnode.length] = '\0';
                }
                break;
            case 0x91:
                p->serviceProviderName = malloc(tmpnode.length + 1);
                if (p->serviceProviderName)
                {
                    memcpy(p->serviceProviderName, tmpnode.value, tmpnode.length);
                    p->serviceProviderName[tmpnode.length] = '\0';
                }
                break;
            case 0x92:
                p->profileName = malloc(tmpnode.length + 1);
                if (p->profileName)
                {
                    memcpy(p->profileName, tmpnode.value, tmpnode.length);
                    p->profileName[tmpnode.length] = '\0';
                }
                break;
            case 0x93:
                tmpint = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);
                switch (tmpint)
                {
                case ES10C_ICON_TYPE_JPEG:
                case ES10C_ICON_TYPE_PNG:
                    p->iconType = tmpint;
                    break;
                default:
                    p->iconType = ES10C_ICON_TYPE_UNDEFINED;
                    break;
                }
                break;
            case 0x94:
                p->icon = malloc(euicc_base64_encode_len(tmpnode.length));
                if (p->icon)
                {
                    euicc_base64_encode(p->icon, tmpnode.value, tmpnode.length);
                }
                break;
            case 0x95:
                tmpint = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);
                switch (tmpint)
                {
                case ES10C_PROFILE_CLASS_TEST:
                case ES10C_PROFILE_CLASS_PROVISIONING:
                case ES10C_PROFILE_CLASS_OPERATIONAL:
                    p->profileClass = tmpint;
                    break;
                default:
                    p->profileClass = ES10C_PROFILE_CLASS_UNDEFINED;
                    break;
                }
                break;
            case 0xB6:
            case 0xB7:
            case 0xB8:
            case 0x99:
                fprintf(stderr, "\n[PLEASE REPORT][TODO][TAG %02X]: ", tmpnode.tag);
                for (int i = 0; i < tmpnode.self.length; i++)
                {
                    fprintf(stderr, "%02X ", tmpnode.self.ptr[i]);
                }
                fprintf(stderr, "\n");
                break;
            }
        }

        if (*profileInfoList == NULL)
        {
            *profileInfoList = p;
        }
        else
        {
            list_wptr->next = p;
        }

        list_wptr = p;
    }

    goto exit;

err:
    fret = -1;
    es10c_profile_info_free_all(*profileInfoList);
exit:
    free(respbuf);
    respbuf = NULL;
    return fret;
}

static int es10c_enable_disable_delete_profile(struct euicc_ctx *ctx, uint16_t op_tag, const char *str_id, uint8_t refreshFlag)
{
    int fret = 0;
    uint8_t id[16];
    int id_len;
    uint16_t id_tag;
    struct derutils_node n_request;
    uint32_t reqlen;
    uint8_t *respbuf = NULL;
    unsigned resplen;

    struct derutils_node tmpnode, n_profileIdentifierChoice;

    memset(&n_profileIdentifierChoice, 0, sizeof(n_profileIdentifierChoice));

    if (strlen(str_id) == 32)
    {
        if ((id_len = euicc_hexutil_hex2bin(id, sizeof(id), str_id)) < 0)
        {
            return -1;
        }
        n_profileIdentifierChoice.tag = 0x4F;
    }
    else
    {
        if ((id_len = euicc_hexutil_gsmbcd2bin(id, sizeof(id), str_id)) < 0)
        {
            return -1;
        }
        n_profileIdentifierChoice.tag = 0x5A;
    }
    n_profileIdentifierChoice.length = id_len;
    n_profileIdentifierChoice.value = id;

    if (0b10000000 & refreshFlag)
    {
        refreshFlag &= 0b01111111;

        if (refreshFlag)
        {
            refreshFlag = 0xFF;
        }

        n_request = (struct derutils_node){
            .pack = {
                .child = &(struct derutils_node){
                    .tag = 0xA0, // profileIdentifier
                    .pack = {
                        .child = &n_profileIdentifierChoice,
                        .next = &(struct derutils_node){
                            .tag = 0x81, // refreshFlag
                            .length = 1,
                            .value = &refreshFlag,
                        },
                    },
                },
            },
        };
    }
    else
    {
        n_request = (struct derutils_node){
            .pack = {
                .child = &n_profileIdentifierChoice,
            },
        };
    }
    n_request.tag = op_tag;

    reqlen = sizeof(ctx->apdu_request_buffer.body);
    if (euicc_derutil_pack(ctx->apdu_request_buffer.body, &reqlen, &n_request))
    {
        goto err;
    }

    if (es10x_command(ctx, &respbuf, &resplen, ctx->apdu_request_buffer.body, reqlen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, n_request.tag, respbuf, resplen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, 0x80, tmpnode.value, tmpnode.length) < 0)
    {
        goto err;
    }

    fret = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);

    goto exit;

err:
    fret = -1;
exit:
    free(respbuf);
    respbuf = NULL;
    return fret;
}

int es10c_enable_profile(struct euicc_ctx *ctx, const char *id, unsigned char refreshFlag)
{
    if (refreshFlag)
    {
        refreshFlag = 0b11111111;
    }
    else
    {
        refreshFlag = 0b10000000;
    }
    return es10c_enable_disable_delete_profile(ctx, 0xBF31, id, refreshFlag);
}

int es10c_disable_profile(struct euicc_ctx *ctx, const char *id, unsigned char refreshFlag)
{
    if (refreshFlag)
    {
        refreshFlag = 0b11111111;
    }
    else
    {
        refreshFlag = 0b10000000;
    }
    return es10c_enable_disable_delete_profile(ctx, 0xBF32, id, refreshFlag);
}

int es10c_delete_profile(struct euicc_ctx *ctx, const char *id)
{
    return es10c_enable_disable_delete_profile(ctx, 0xBF33, id, 0);
}

int es10c_euicc_memory_reset(struct euicc_ctx *ctx)
{
    int fret = 0;
    uint8_t resetOptions[2];
    struct derutils_node n_request = {
        .tag = 0xBF34, // EuiccMemoryResetRequest
        .pack = {
            .child = &(struct derutils_node){
                .tag = 0x82, // resetOptions
                .length = sizeof(resetOptions),
                .value = resetOptions,
            },
        },
    };
    uint32_t reqlen;
    uint8_t *respbuf = NULL;
    unsigned resplen;

    struct derutils_node tmpnode;

    if (euicc_derutil_convert_bits2bin(resetOptions, sizeof(resetOptions), (const uint32_t[]){0, 1, 2}, 3) < 0)
    {
        goto err;
    }

    reqlen = sizeof(ctx->apdu_request_buffer.body);
    if (euicc_derutil_pack(ctx->apdu_request_buffer.body, &reqlen, &n_request))
    {
        goto err;
    }

    if (es10x_command(ctx, &respbuf, &resplen, ctx->apdu_request_buffer.body, reqlen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, n_request.tag, respbuf, resplen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, 0x80, tmpnode.value, tmpnode.length) < 0)
    {
        goto err;
    }

    fret = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);

    goto exit;

err:
    fret = -1;
exit:
    free(respbuf);
    respbuf = NULL;
    return fret;
}

int es10c_get_eid(struct euicc_ctx *ctx, char **eidValue)
{
    int fret = 0;
    struct derutils_node n_request = {
        .tag = 0xBF3E, // GetEuiccDataRequest
        .pack = {
            .child = &(struct derutils_node){
                .tag = 0x5C, // tagList
                .length = 1,
                .value = (uint8_t[]){0x5A},
            },
        },
    };
    uint32_t reqlen;
    uint8_t *respbuf = NULL;
    unsigned resplen;

    struct derutils_node tmpnode;

    reqlen = sizeof(ctx->apdu_request_buffer.body);
    if (euicc_derutil_pack(ctx->apdu_request_buffer.body, &reqlen, &n_request))
    {
        goto err;
    }

    if (es10x_command(ctx, &respbuf, &resplen, ctx->apdu_request_buffer.body, reqlen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, n_request.tag, respbuf, resplen))
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, 0x5A, tmpnode.value, tmpnode.length))
    {
        goto err;
    }

    *eidValue = malloc((tmpnode.length * 2) + 1);
    if (*eidValue == NULL)
    {
        goto err;
    }

    euicc_hexutil_bin2hex(*eidValue, (tmpnode.length * 2) + 1, tmpnode.value, tmpnode.length);

    goto exit;

err:
    fret = -1;
    free(*eidValue);
    *eidValue = NULL;
exit:
    free(respbuf);
    respbuf = NULL;
    return fret;
}

int es10c_set_nickname(struct euicc_ctx *ctx, const char *iccid, const char *profileNickname)
{
    int fret = 0;
    uint8_t asn1iccid[10];
    struct derutils_node n_request = {
        .tag = 0xBF29, // SetNicknameRequest
        .pack = {
            .child = &(struct derutils_node){
                .tag = 0x5A, // iccid
                .length = sizeof(asn1iccid),
                .value = asn1iccid,
                .pack = {
                    .next = &(struct derutils_node){
                        .tag = 0x90, // profileNickname
                        .length = strlen(profileNickname),
                        .value = (const uint8_t *)profileNickname,
                    },
                },
            },
        },
    };
    uint32_t reqlen;
    uint8_t *respbuf = NULL;
    unsigned resplen;

    struct derutils_node tmpnode;

    if (euicc_hexutil_gsmbcd2bin(asn1iccid, sizeof(asn1iccid), iccid) < 0)
    {
        goto err;
    }

    reqlen = sizeof(ctx->apdu_request_buffer.body);
    if (euicc_derutil_pack(ctx->apdu_request_buffer.body, &reqlen, &n_request))
    {
        goto err;
    }

    if (es10x_command(ctx, &respbuf, &resplen, ctx->apdu_request_buffer.body, reqlen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, n_request.tag, respbuf, resplen) < 0)
    {
        goto err;
    }

    if (euicc_derutil_unpack_find_tag(&tmpnode, 0x80, tmpnode.value, tmpnode.length) < 0)
    {
        goto err;
    }

    fret = euicc_derutil_convert_bin2long(tmpnode.value, tmpnode.length);

    goto exit;

err:
    fret = -1;
exit:
    free(respbuf);
    respbuf = NULL;
    return fret;
}

void es10c_profile_info_free_all(struct es10c_profile_info_list *profileInfoList)
{
    while (profileInfoList)
    {
        struct es10c_profile_info_list *next = profileInfoList->next;
        free(profileInfoList->profileNickname);
        free(profileInfoList->serviceProviderName);
        free(profileInfoList->profileName);
        free(profileInfoList->icon);
        free(profileInfoList);
        profileInfoList = next;
    }
}