package ns

/*
#cgo CFLAGS: -x objective-c -fno-objc-arc
#cgo LDFLAGS: -framework AppKit -framework Foundation
#pragma clang diagnostic ignored "-Wformat-security"

#import <Foundation/Foundation.h>
#import <AppKit/NSPasteboard.h>

void
NSObject_inst_Release(void* o) {
        @autoreleasepool {
                [(NSObject*)o release];
        }
}

void
NSString_inst_Release(void* o) {
        @autoreleasepool {
                [(NSString*)o release];
        }
}

const void* _Nullable
NSString_inst_UTF8String(void* o) {
        const char* _Nullable ret;
        @autoreleasepool {
                ret = strdup([(NSString*)o UTF8String]);
        }
        return ret;

}

void
NSPasteboard_inst_Release(void* o) {
        @autoreleasepool {
                [(NSPasteboard*)o release];
        }
}

void* _Nullable
NSString_StringWithUTF8String(void* nullTerminatedCString) {
        NSString* _Nullable ret;
        @autoreleasepool {
                ret = [NSString stringWithUTF8String:nullTerminatedCString];
                if(ret != nil) { [ret retain]; }
        }
        return ret;

}

void* _Nonnull
NSPasteboard_GeneralPasteboard() {
        NSPasteboard* _Nonnull ret;
        @autoreleasepool {
                ret = [NSPasteboard generalPasteboard];
        }
        return ret;
}

void
NSPasteboard_inst_ClearContents(void* o) {
        @autoreleasepool {
                [(NSPasteboard*)o clearContents];
        }
}

BOOL
NSPasteboard_inst_SetString(void* o, void* string) {
        BOOL ret;
        @autoreleasepool {
                ret = [(NSPasteboard*)o setString:string forType:NSPasteboardTypeString];
        }
        return ret;
}

void* _Nullable
NSPasteboard_inst_GetString(void* o) {
        NSString* _Nullable ret;
        @autoreleasepool {
                ret = [(NSPasteboard*)o stringForType:NSPasteboardTypeString];
                if (ret != nil && ret != o) { [ret retain]; }
        }
        return ret;

}

void
NSPasteboard_inst_PasteFileList(void* o, void* string) {
        @autoreleasepool {
                NSArray *values = [(NSString*)string componentsSeparatedByString:@"\n"];

                NSMutableArray *urls = [NSMutableArray arrayWithCapacity:values.count + 1];
                for (NSString *value in values) {
                        id transformedValue = [NSURL fileURLWithPath:value isDirectory:NO];
                        [urls addObject:transformedValue];
                }

                NSString* pathPerLine = [values componentsJoinedByString:@"\n"];

                NSPasteboard* pasteboard = (NSPasteboard*)o;
                [pasteboard clearContents];
                [pasteboard writeObjects:urls];
                //Now add the pathsPerLine as a string
                [pasteboard setString:pathPerLine forType:NSPasteboardTypeString];

        }
}

void* _Nullable
NSPasteboard_inst_GetFileList(void* o) {
        NSString* _Nullable ret;
        @autoreleasepool {
                NSArray *classes = [NSArray arrayWithObject:[NSURL class]];

								NSDictionary *options = [NSDictionary dictionaryWithObject:
																				[NSNumber numberWithBool:YES] forKey:NSPasteboardURLReadingFileURLsOnlyKey];

								NSArray *fileURLs =
								[(NSPasteboard*)o readObjectsForClasses:classes options:options];

								NSMutableArray *paths = [NSMutableArray arrayWithCapacity:fileURLs.count];
								for (NSURL *value in fileURLs) {
                        id transformedValue = value.absoluteString;
                        [paths addObject:transformedValue];
                }

								ret = [paths componentsJoinedByString:@"\n"];
								if (ret != nil && ret != o) { [ret retain]; }
        }
        return ret;

}

BOOL
NSPasteboard_inst_GetImage(void* o, void* filePath) {
        BOOL ret;
        @autoreleasepool {

								NSData *data = [(NSPasteboard*)o dataForType:NSPasteboardTypeTIFF];
                if (data != nil && data != o) {
									// NSImage *img = [[NSImage alloc] initWithData:data];
									//NSString *filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"image.tiff"];
									[data writeToFile: (NSString*)filePath atomically: NO];
									ret = true;
								} else
								{
									ret = false;
								}
        }
        return ret;

}


*/
import "C"

import (
	"runtime"
	"strings"
	"unsafe"
)

type Id struct {
	ptr unsafe.Pointer
}

const FilesDelimeter = "\n"

func (o *Id) Ptr() unsafe.Pointer {
	if o == nil {
		return nil
	}
	return o.ptr
}

type NSObject interface {
	Ptr() unsafe.Pointer
}

func (o *Id) Release() {
	C.NSObject_inst_Release(o.Ptr())
	runtime.KeepAlive(o)
}

func (o *NSPasteboard) Release() {
	C.NSPasteboard_inst_Release(o.Ptr())
	runtime.KeepAlive(o)
}

func (o *NSString) Release() {
	C.NSString_inst_Release(o.Ptr())
	runtime.KeepAlive(o)
}

func (c *Char) Free() {
	C.free(unsafe.Pointer(c))
}

type BOOL C.uchar

type NSString struct{ Id }

func (o *NSString) Ptr() unsafe.Pointer {
	if o == nil {
		return nil
	}
	return o.ptr
}
func (o *Id) NSString() *NSString {
	return (*NSString)(unsafe.Pointer(o))
}

func (o *NSString) UTF8String() *Char {
	ret := (*Char)(unsafe.Pointer(C.NSString_inst_UTF8String(o.Ptr())))
	runtime.KeepAlive(o)
	return ret
}

func (o *NSString) String() string {
	utf8 := o.UTF8String()
	ret := utf8.String()
	utf8.Free()
	runtime.KeepAlive(o)
	return ret
}

type NSPasteboard struct{ Id }

func (o *NSPasteboard) Ptr() unsafe.Pointer {
	if o == nil {
		return nil
	}
	return o.ptr
}
func (o *Id) NSPasteboard() *NSPasteboard {
	return (*NSPasteboard)(unsafe.Pointer(o))
}

type Char C.char

func CharWithGoString(s string) *Char {
	return (*Char)(unsafe.Pointer(C.CString(s)))
}

func (c *Char) String() string {
	return C.GoString((*C.char)(c))
}

func NSStringWithUTF8String(nullTerminatedCString *Char) *NSString {
	ret := &NSString{}
	ret.ptr = unsafe.Pointer(C.NSString_StringWithUTF8String(unsafe.Pointer(nullTerminatedCString)))
	if ret.ptr == nil {
		return ret
	}
	runtime.SetFinalizer(ret, func(o *NSString) {
		o.Release()
	})
	return ret
}

func NSStringWithGoString(string string) *NSString {
	string_chr := CharWithGoString(string)
	defer string_chr.Free()
	ret := NSStringWithUTF8String(string_chr)
	return ret
}

func NSPasteboardGeneralPasteboard() *NSPasteboard {
	ret := &NSPasteboard{}
	ret.ptr = unsafe.Pointer(C.NSPasteboard_GeneralPasteboard())
	if ret.ptr == nil {
		return ret
	}
	return ret
}

func (o *NSPasteboard) ClearContents() {
	C.NSPasteboard_inst_ClearContents(o.Ptr())
	runtime.KeepAlive(o)
}

func (o *NSPasteboard) SetString(s string) bool {
	string := NSStringWithGoString(s)
	ret := (C.NSPasteboard_inst_SetString(o.Ptr(), string.Ptr())) != 0
	runtime.KeepAlive(o)
	runtime.KeepAlive(string)
	return ret
}

func (o *NSPasteboard) GetString() *NSString {
	ret := &NSString{}
	ret.ptr = unsafe.Pointer(C.NSPasteboard_inst_GetString(o.Ptr()))
	if ret.ptr == nil {
		runtime.KeepAlive(o)
		return ret
	}
	if ret.ptr == o.ptr {
		runtime.KeepAlive(o)
		return (*NSString)(unsafe.Pointer(o))
	}
	runtime.SetFinalizer(ret, func(o *NSString) {
		o.Release()
	})
	runtime.KeepAlive(o)
	return ret
}

func (o *NSPasteboard) PasteFileList(values []string) {
	inString := strings.Join(values, FilesDelimeter)
	str := NSStringWithGoString(inString)
	C.NSPasteboard_inst_PasteFileList(o.Ptr(), str.Ptr())
	runtime.KeepAlive(o)
	runtime.KeepAlive(str)
	return

}

func (o *NSPasteboard) GetFileList() *NSString {
	ret := &NSString{}
	ret.ptr = unsafe.Pointer(C.NSPasteboard_inst_GetFileList(o.Ptr()))
	if ret.ptr == nil {
		runtime.KeepAlive(o)
		return ret
	}
	if ret.ptr == o.ptr {
		runtime.KeepAlive(o)
		return (*NSString)(unsafe.Pointer(o))
	}
	runtime.SetFinalizer(ret, func(o *NSString) {
		o.Release()
	})
	runtime.KeepAlive(o)
	return ret
}

func (o *NSPasteboard) GetImage(filePath string) bool {
	string := NSStringWithGoString(filePath)
	ret := (C.NSPasteboard_inst_GetImage(o.Ptr(), string.Ptr())) != 0
	runtime.KeepAlive(o)
	runtime.KeepAlive(string)
	return ret
}