import times
import nimgit2

type
    GitRepository*      = ptr git_repository
    GitConfig*          = ptr git_config
    GitConfigEntry*     = ptr git_config_entry
    GitObject*          = ptr git_object
    GitObjectId*        = ptr git_oid
    GitCommit*          = ptr git_commit
    GitTree*            = ptr git_tree
    GitTreeEntry*       = ptr git_tree_entry
    GitReference*       = ptr git_reference
    GitRevisionWalker*  = ptr git_revwalk
    GitBranchIterator*  = ptr git_branch_iterator
    GitBuffer*          = ptr git_buf
    GitTag*             = ptr git_tag
    GitBlob*            = ptr git_blob
    GitDiff*            = ptr git_diff
    GitDiffOptions*     = ptr git_diff_options
    GitDiffFindOptions* = ptr git_diff_find_options
    GitDiffDelta*       = ptr git_diff_delta
    GitPatch*           = ptr git_patch
    GitDiffHunk*        = ptr git_diff_hunk
    GitDiffLine*        = ptr git_diff_line

    GitDiffStats* = object
        filesChanged* : int
        insertions*   : int
        deletions*    : int

    GitObjectKind* = enum
        # we have to add 2 here to satisfy nim; discriminants.low must be zero
        goAny         = (2 + GIT_OBJECT_ANY, "object")        # -2
        goInvalid     = (2 + GIT_OBJECT_INVALID, "invalid")   # -1
        # this space intentionally left blank
        goCommit      = (2 + GIT_OBJECT_COMMIT, "commit")     #  1
        goTree        = (2 + GIT_OBJECT_TREE, "tree")         #  2
        goBlob        = (2 + GIT_OBJECT_BLOB, "blob")         #  3
        goTag         = (2 + GIT_OBJECT_TAG, "tag")           #  4
        # this space intentionally left blank
        goOfsDelta    = (2 + GIT_OBJECT_OFS_DELTA, "ofs")     #  6
        goRefDelta    = (2 + GIT_OBJECT_REF_DELTA, "ref")     #  7

    GitTime* = object
        time*     : Time
        offset*   : int

    GitSignature* = object
        name*   : string
        email*  : string
        `when`* : GitTime

    GitReferenceType* = enum
        referenceDirect   = (GIT_REFERENCE_DIRECT, "direct")
        referenceSymbolic = (GIT_REFERENCE_SYMBOLIC, "symbolic")

    GitBranchType* = enum
        branchLocal  = (GIT_BRANCH_LOCAL, "local")
        branchRemote = (GIT_BRANCH_REMOTE, "remote")
        branchAll    = (GIT_BRANCH_ALL, "all")

    GitReturnCode* = enum
        grcApplyFail       = (GIT_EAPPLYFAIL, "patch failed")
        grcIndexDirty      = (GIT_EINDEXDIRTY, "dirty index")
        grcMismatch        = (GIT_EMISMATCH, "hash mismatch")
        grcRetry           = (GIT_RETRY, "retry")
        grcIterOver        = (GIT_ITEROVER, "end of iteration")
        grcPassThrough     = (GIT_PASSTHROUGH, "pass-through")
        grcMergeConflict   = (GIT_EMERGE_CONFLICT, "merge conflict")
        grcDirectory       = (GIT_EDIRECTORY, "directory")
        grcUncommitted     = (GIT_EUNCOMMITTED, "uncommitted")
        grcInvalid         = (GIT_EINVALID, "invalid")
        grcEndOfFile       = (GIT_EEOF, "end-of-file")
        grcPeel            = (GIT_EPEEL, "peel")
        grcApplied         = (GIT_EAPPLIED, "applied")
        grcCertificate     = (GIT_ECERTIFICATE, "certificate")
        grcAuthentication  = (GIT_EAUTH, "authentication")
        grcModified        = (GIT_EMODIFIED, "modified")
        grcLocked          = (GIT_ELOCKED, "locked")
        grcConflict        = (GIT_ECONFLICT, "conflict")
        grcInvalidSpec     = (GIT_EINVALIDSPEC, "invalid spec")
        grcNonFastForward  = (GIT_ENONFASTFORWARD, "not fast-forward")
        grcUnmerged        = (GIT_EUNMERGED, "unmerged")
        grcUnbornBranch    = (GIT_EUNBORNBRANCH, "unborn branch")
        grcBareRepo        = (GIT_EBAREREPO, "bare repository")
        grcUser            = (GIT_EUSER, "user-specified")
        grcBuffer          = (GIT_EBUFS, "buffer overflow")
        grcAmbiguous       = (GIT_EAMBIGUOUS, "ambiguous match")
        grcExists          = (GIT_EEXISTS, "object exists")
        grcNotFound        = (GIT_ENOTFOUND, "not found")
        grcError           = (GIT_ERROR, "generic error")
        grcOk              = (GIT_OK, "ok")

    GitErrorClass* = enum
        gecNone        = (GIT_ERROR_NONE, "none")
        gecNoMemory    = (GIT_ERROR_NOMEMORY, "no memory")
        gecOS          = (GIT_ERROR_OS, "os")
        gecInvalid     = (GIT_ERROR_INVALID, "invalid")
        gecReference   = (GIT_ERROR_REFERENCE, "reference")
        gecZlib        = (GIT_ERROR_ZLIB, "zlib")
        gecRepository  = (GIT_ERROR_REPOSITORY, "repository")
        gecConfig      = (GIT_ERROR_CONFIG, "config")
        gecRegEx       = (GIT_ERROR_REGEX, "regex")
        gecODB         = (GIT_ERROR_ODB, "odb")
        gecIndex       = (GIT_ERROR_INDEX, "index")
        gecObject      = (GIT_ERROR_OBJECT, "object")
        gecNet         = (GIT_ERROR_NET, "network")
        gecTag         = (GIT_ERROR_TAG, "tag")
        gecTree        = (GIT_ERROR_TREE, "tree")
        gecIndexer     = (GIT_ERROR_INDEXER, "indexer")
        gecSSL         = (GIT_ERROR_SSL, "ssl")
        gecSubModule   = (GIT_ERROR_SUBMODULE, "submodule")
        gecThread      = (GIT_ERROR_THREAD, "thread")
        gecStash       = (GIT_ERROR_STASH, "stash")
        gecCheckOut    = (GIT_ERROR_CHECKOUT, "check out")
        gecFetchHead   = (GIT_ERROR_FETCHHEAD, "fetch head")
        gecMerge       = (GIT_ERROR_MERGE, "merge")
        gecSSH         = (GIT_ERROR_SSH, "ssh")
        gecFilter      = (GIT_ERROR_FILTER, "filter")
        gecRevert      = (GIT_ERROR_REVERT, "revert")
        gecCallBack    = (GIT_ERROR_CALLBACK, "call back")
        gecCherryPick  = (GIT_ERROR_CHERRYPICK, "cherry pick")
        gecDescribe    = (GIT_ERROR_DESCRIBE, "describe")
        gecReBase      = (GIT_ERROR_REBASE, "re-base")
        gecFileSystem  = (GIT_ERROR_FILESYSTEM, "filesystem")
        gecPatch       = (GIT_ERROR_PATCH, "patch")
        gecWorkTree    = (GIT_ERROR_WORKTREE, "work tree")
        gecSHA1        = (GIT_ERROR_SHA1, "sha1")

    GitErrorObj* = object
        message* :  string
        class*   :  GitErrorClass

template getResultCode* (code: cint): GitReturnCode = cast[GitReturnCode](code.ord)
template getErrorClass* (code: cint): GitErrorClass = cast[GitErrorClass](code.ord)