#pragma once

#include <stdint.h>

#if defined(_WIN32)
#define DTS_RUNTIME_EXPORT __declspec(dllexport)
#else
#define DTS_RUNTIME_EXPORT __attribute__((visibility("default")))
#endif

#ifdef __cplusplus
extern "C" {
#endif

enum { DTS_RUNTIME_API_VERSION = 3 };

enum DtsRuntimeCapability {
    DTS_RUNTIME_CAP_SKELETON_METADATA = 1u << 0,
    DTS_RUNTIME_CAP_DRAW_COMMANDS = 1u << 1
};

typedef struct DtsRuntimeInfo {
    uint32_t structSize;
    uint32_t apiVersion;
    const char* spineVersionLine;
    const char* adapterBuild;
    uint32_t capabilities;
} DtsRuntimeInfo;

typedef void* DtsRuntimeHandle;

typedef struct DtsLoadRequest {
    uint32_t structSize;
    const char* skeletonPathUtf8;
    const char* atlasPathUtf8;
    float scale;
} DtsLoadRequest;

typedef struct DtsSkeletonInfo {
    uint32_t structSize;
    uint32_t boneCount;
    uint32_t slotCount;
    uint32_t skinCount;
    uint32_t animationCount;
    uint32_t eventCount;
    uint32_t constraintCount;
} DtsSkeletonInfo;

typedef struct DtsRenderVertex {
    float x;
    float y;
    float u;
    float v;
    uint32_t color;
} DtsRenderVertex;

typedef struct DtsDrawCommand {
    uint32_t structSize;
    const DtsRenderVertex* vertices;
    uint32_t vertexCount;
    const uint16_t* indices;
    uint32_t indexCount;
    const char* texturePathUtf8;
    uint32_t blendMode;
} DtsDrawCommand;

DTS_RUNTIME_EXPORT uint32_t dtsRuntimeGetApiVersion(void);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeGetInfo(DtsRuntimeInfo* info);
DTS_RUNTIME_EXPORT DtsRuntimeHandle dtsRuntimeCreate(void);
DTS_RUNTIME_EXPORT void dtsRuntimeDestroy(DtsRuntimeHandle handle);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeLoad(DtsRuntimeHandle handle, const DtsLoadRequest* request);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeGetSkeletonInfo(
    DtsRuntimeHandle handle, DtsSkeletonInfo* info);
DTS_RUNTIME_EXPORT const char* dtsRuntimeGetAnimationName(
    DtsRuntimeHandle handle, uint32_t index);
DTS_RUNTIME_EXPORT float dtsRuntimeGetAnimationDuration(
    DtsRuntimeHandle handle, uint32_t index);
DTS_RUNTIME_EXPORT const char* dtsRuntimeGetSkinName(
    DtsRuntimeHandle handle, uint32_t index);
DTS_RUNTIME_EXPORT const char* dtsRuntimeGetLastError(DtsRuntimeHandle handle);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeSetAnimation(
    DtsRuntimeHandle handle, const char* animationNameUtf8, int32_t loop);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeUpdate(DtsRuntimeHandle handle, float deltaSeconds);
DTS_RUNTIME_EXPORT uint32_t dtsRuntimeGetDrawCommandCount(DtsRuntimeHandle handle);
DTS_RUNTIME_EXPORT int32_t dtsRuntimeGetDrawCommand(
    DtsRuntimeHandle handle, uint32_t index, DtsDrawCommand* command);

#ifdef __cplusplus
}
#endif