/**
 * @file ncm.h
 * @brief Content Manager (ncm) service IPC wrapper.
 * @author zhuowei & Adubbz
 * @copyright libnx Authors
 */
#pragma once
#include "../types.h"
#include "../services/fs.h"
#include "../services/sm.h"

/// ContentType
typedef enum  {
    NcmContentType_CNMT    = 0,                            ///< CNMT
    NcmContentType_Program = 1,                            ///< Program
    NcmContentType_Data    = 2,                            ///< Data
    NcmContentType_Icon    = 3,                            ///< Icon
    NcmContentType_Doc     = 4,                            ///< Doc
    NcmContentType_Info    = 5,                            ///< Info
} NcmContentType;

/// ContentMetaType
typedef enum {
    NcmContentMetaType_SystemProgram        = 0x01,        ///< SystemProgram
    NcmContentMetaType_SystemData           = 0x02,        ///< SystemData
    NcmContentMetaType_SystemUpdate         = 0x03,        ///< SystemUpdate
    NcmContentMetaType_BootImagePackage     = 0x04,        ///< BootImagePackage
    NcmContentMetaType_BootImagePackageSafe = 0x05,        ///< BootImagePackageSafe
    NcmContentMetaType_Application          = 0x80,        ///< Application
    NcmContentMetaType_Patch                = 0x81,        ///< Patch
    NcmContentMetaType_AddOnContent         = 0x82,        ///< AddOnContent
    NcmContentMetaType_Delta                = 0x83,        ///< Delta
} NcmContentMetaType;

/// ContentMetaAttribute
typedef enum {
    NcmContentMetaAttribute_Exfat      = (1 << 0),         ///< Exfat
    NcmContentMetaAttribute_Rebootless = (1 << 1),         ///< Rebootless
} NcmContentMetaAttribute;

/// NcmContentStorage
typedef struct {
    Service s;                                             ///< IContentStorage
} NcmContentStorage;

/// NcmContentMetaDatabase
typedef struct {
    Service s;                                             ///< IContentMetaDatabase
} NcmContentMetaDatabase;

/// NcaId
typedef struct {
    u8 c[0x10];                                            ///< Id
} NcmNcaId;

/// MetaRecord
typedef struct {
    u64 titleId;                                           ///< titleID.
    u32 version;                                           ///< Title version.
    u8  type;                                              ///< Type.
    u8  flags;                                             ///< Flags.
    u8  padding[2];                                        ///< Padding.
} NcmMetaRecord;

/// ContentRecord
typedef struct {
    NcmNcaId  ncaId;                                       ///< \ref NcmNcaId
    u8        size[0x6];                                   ///< Content size.
    u8        type;                                        ///< Type.
    u8        padding;                                     ///< Padding.
} NcmContentRecord;

/// ContentMetaRecordsHeader
typedef struct {
    u16 numExtraBytes;     ///< Size of optional struct that comes after this one.
    u16 numContentRecords; ///< Number of NcmContentRecord entries after the extra bytes.
    u16 numMetaRecords;    ///< Number of NcmMetaRecord entries that come after the NcmContentRecords.
    u16 padding;           ///< Always zero.
} NcmContentMetaRecordsHeader;

/// ApplicationContentMetaKey
typedef struct {
    NcmMetaRecord metaRecord;                              ///< \ref NcmMetaRecord
    u64           baseTitleId;                             ///< Base titleID.
} NcmApplicationContentMetaKey;

Result ncmInitialize(void);
void ncmExit(void);
Service* ncmGetServiceSession(void);

Result ncmOpenContentStorage(FsStorageId storage, NcmContentStorage* out);
Result ncmOpenContentMetaDatabase(FsStorageId storage, NcmContentMetaDatabase* out);

Result ncmContentStorageGeneratePlaceHolderId(NcmContentStorage* cs, NcmNcaId* outputId);
Result ncmContentStorageCreatePlaceHolder(NcmContentStorage* cs, const NcmNcaId* registeredId, const NcmNcaId* placeholderId, u64 size);
Result ncmContentStorageDeletePlaceHolder(NcmContentStorage* cs, const NcmNcaId* placeholderId);
Result ncmContentStorageWritePlaceHolder(NcmContentStorage* cs, const NcmNcaId* placeholderId, u64 offset, const void* srcData, size_t srcDataSize);
Result ncmContentStorageRegister(NcmContentStorage* cs, const NcmNcaId* registeredId, const NcmNcaId* placeholderId);
Result ncmContentStorageDelete(NcmContentStorage* cs, const NcmNcaId* registeredId);
Result ncmContentStorageHas(NcmContentStorage* cs, const NcmNcaId* ncaId, bool* out);
Result ncmContentStorageGetPath(NcmContentStorage* cs, const NcmNcaId* ncaId, char* out, size_t outSize);
Result ncmContentStorageGetPlaceHolderPath(NcmContentStorage* cs, const NcmNcaId* ncaId, char* out, size_t outSize);
Result ncmContentStorageCleanupAllPlaceHolder(NcmContentStorage* cs);
Result ncmContentStorageGetSize(NcmContentStorage* cs, const NcmNcaId* ncaId, u64* out);
Result ncmContentStorageDisableForcibly(NcmContentStorage* cs);
Result ncmContentStorageReadContentIdFile(NcmContentStorage* cs, const NcmNcaId* ncaId, u64 offset, void* outBuf, size_t bufSize);
Result ncmContentStorageGetRightsIdFromContentId(NcmContentStorage* cs, const NcmNcaId* ncaId, FsRightsId* rightsIdOut, u32* keyGenerationOut);

Result ncmContentMetaDatabaseSet(NcmContentMetaDatabase* db, const NcmMetaRecord* record, u64 inDataSize, const NcmContentMetaRecordsHeader* srcRecordsData);
Result ncmContentMetaDatabaseGet(NcmContentMetaDatabase* db, const NcmMetaRecord* record, u64 outDataSize, NcmContentMetaRecordsHeader* outRecordsData, u64* sizeRead);
Result ncmContentMetaDatabaseRemove(NcmContentMetaDatabase* db, const NcmMetaRecord *record);
Result ncmContentMetaDatabaseGetContentIdByType(NcmContentMetaDatabase* db, NcmContentType contentType, const NcmMetaRecord* record, NcmNcaId* out);
Result ncmContentMetaDatabaseListContentInfo(NcmContentMetaDatabase* db, const NcmMetaRecord* record, u32 index, NcmContentRecord* contentRecordsOut, size_t contentRecordsBufSize, u32* numEntriesRead);
Result ncmContentMetaDatabaseList(NcmContentMetaDatabase* db, u32 titleType, u64 titleIdExact, u64 titleIdLow, u64 titleIdHigh, NcmMetaRecord* metaRecordsOut, size_t metaRecordsBufSize, u32* numEntriesWritten, u32* numEntriesTotal);
Result ncmContentMetaDatabaseGetLatestContentMetaKey(NcmContentMetaDatabase* db, u64 titleId, NcmMetaRecord* out);
Result ncmContentMetaDatabaseListApplication(NcmContentMetaDatabase* db, u8 filter, NcmApplicationContentMetaKey* outBuf, size_t outBufSize, u32* numEntriesWritten, u32* numEntriesTotal);
Result ncmContentMetaDatabaseHas(NcmContentMetaDatabase* db, const NcmMetaRecord* record, bool* out);
Result ncmContentMetaDatabaseDisableForcibly(NcmContentMetaDatabase* db);
Result ncmContentMetaDatabaseCommit(NcmContentMetaDatabase* db);
Result ncmContentMetaDatabaseGetAttributes(NcmContentMetaDatabase* db, const NcmMetaRecord* record, u8* out);