#ifndef DEVIL1GEO_H
#define DEVIL1GEO_H
#include <stdint.h>
#include <stdbool.h>


#pragma pack(push, 1)
struct Header {
    unsigned char numMesh;
    unsigned char unknownNumberB;
    unsigned char unknownNumberC;
    unsigned char unknownNumberD;
    uint32_t padding;   // <format=hex>
    uint64_t unknownOffset;
};

struct MeshHeader {
    int16_t   numBatch;
    int16_t   numVertex;
    uint32_t  u;        // <format=hex>
    uint64_t  offsetBatches;
    uint64_t  flags;
}; // put these in an array of size: [header.numMesh]

struct Coordinate {
    float x, y, z;
};

struct UVs {
    int16_t u, v;
};

struct BoneIndexes {
    unsigned char indexes[4]; // from ubyte
};

struct BoneWeights {
    uint16_t weights; // <format=hex>
};

struct BatchData {
    int16_t   numVertex;
    int16_t   uB;
    uint32_t  padding;           // <format=hex>
    uint64_t  offsetPositions;   // <format=hex>
    uint64_t  offsetNormals;     // <format=hex>
    uint64_t  offsetUVs;         // <format=hex>
    uint64_t  offsetBoneIndexes; // <format=hex>
    uint64_t  offsetBoneWeights; // <format=hex>
    uint64_t  offsets[1];        // <format=hex>
};

struct VertexData {
    // following structs should in an array of size numVertex
    struct Coordinate   *positions;
    struct Coordinate   *normals;
    struct UVs          *u;
    struct BoneIndexes  *bi;
    struct BoneWeights  *bw;
};

// This is where most of the parsing will be.
// this struct is in-order of what the file format will have.
struct Batch {
    struct BatchData  *bd;
    struct VertexData vd;
};

struct Mesh {
    // may contain multiple batches
    struct Batch *b;
};

#pragma pack(pop)

void printgheader(struct Header*);

void printmeshheader(struct MeshHeader*);

void printmeshbatch(struct Batch*);

void printcoordinate(struct Coordinate*, unsigned int);

// ** = 'pass by reference' of a pointer to struct
bool getmeshheader(struct MeshHeader**, unsigned int i, const char * const);

// ** = 'pass by reference' of a pointer to struct
bool getmeshbatch(struct Batch*, 
                  struct MeshHeader*, 
                  const char * const);

#endif