#!/Ausr/bin/env python
import os, sys
import recalboxFiles
import settings
from settings.unixSettings import UnixSettings
import subprocess
import json

mupenSettings = UnixSettings(recalboxFiles.mupenCustom, separator=' ')

GlideN64FBEmulation_whitelist = ["ocarina", "empire", "pokemon", "rayman", "donald", "diddy", "beetle", "tennis", "instinct", "gemini", "twins", "majora", "quake", "ridge"]
GLideN64LegacyBlending_blacklist = ["empire", "beetle", "donkey", "zelda", "bomberman", "party"]
GLideN64NativeResolution_blacklist = ["majora"]

def writeMupenConfig(system, controllers, rom):
        setPaths()
        writeHotKeyConfig(controllers)
        if system.config['videomode'] != 'default':
                group, mode, drive = system.config['videomode'].split()
                setRealResolution(group, mode, drive)
        #Draw or not FPS
        if system.config['showFPS'] == 'true':
                mupenSettings.save('ShowFPS', 'True')
                # show_fps is used for Video-Glide64mk2 & Video-GlideN64
                mupenSettings.save('show_fps', '4')
        else:
                mupenSettings.save('ShowFPS', 'False')
                mupenSettings.save('show_fps', '8')

        #Write GlideN64 config
        romName = os.path.basename(rom)

        #Crop resulted image.
        mupenSettings.save('CropMode', '1')
        #Bilinear filtering mode.
        mupenSettings.save('bilinearMode', '1')
        #Size of texture cache in megabytes.
        mupenSettings.save('CacheSize', '100')
        #Enable color buffer copy to RDRAM.
        mupenSettings.save('EnableCopyColorToRDRAM', '0')
        #Enable frame and|or depth buffer emulation.
        mupenSettings.save('EnableFBEmulation', 'False')
        #Do not use shaders to emulate N64 blending modes. Works faster on slow GPU. Can cause glitches.
        mupenSettings.save('EnableLegacyBlending', 'True')
        #Frame buffer size is the factor of N64 native resolution.
        mupenSettings.save('UseNativeResolutionFactor', '1')

        for n in GlideN64FBEmulation_whitelist:
                if n in romName.lower():
                        mupenSettings.save('EnableFBEmulation', 'True')

        for n in GLideN64LegacyBlending_blacklist:
                if n in romName.lower():
                        mupenSettings.save('EnableLegacyBlending', 'False')

        for n in GLideN64NativeResolution_blacklist:
                if n in romName.lower():
                        mupenSettings.save('UseNativeResolutionFactor', '0')

def writeHotKeyConfig(controllers):
        if '1' in controllers:
                if 'hotkey' in controllers['1'].inputs:
                        if 'start' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Stop', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['start'])))
                        if 'y' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Save State', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['y'])))
                        if 'x' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Load State', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['x'])))
                        if 'pageup' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Screenshot', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['pageup'])))
                        if 'up' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Increment Slot', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['up'])))
                        if 'right' in controllers['1'].inputs:
                                mupenSettings.save('Joy Mapping Fast Forward', "\"J{}{}/{}\"".format(controllers['1'].index, createButtonCode(controllers['1'].inputs['hotkey']), createButtonCode(controllers['1'].inputs['right'])))


def createButtonCode(button):
        if(button.type == 'axis'):
                if button.value == '-1':
                        return 'A'+button.id+'-'
                else:
                        return 'A'+button.id+'+'
        if(button.type == 'button'):
                return 'B'+button.id
        if(button.type == 'hat'):
                return 'H'+button.id+'V'+button.value


def setRealResolution(group, mode, drive):
        # Use tvservice to get the real resolution
        groups = ['CEA', 'DMT']
        if group not in groups:
                sys.exit("{} is an unknown group. Can't switch to {} {} {}".format(group, group, mode, drive))

        drives = ['HDMI', 'DVI']
        if drive not in drives:
                sys.exit("{} is an unknown drive. Can't switch to {} {} {}".format(drive, group, mode, drive))

        proc = subprocess.Popen(["tvservice -j -m {}".format(group)], stdout=subprocess.PIPE, shell=True)
        (out, err) = proc.communicate()
        print "program output:", out
        tvmodes = json.loads(out)

        for tvmode in tvmodes:
                if tvmode["code"] == int(mode):
                        #mupenSettings.save('ScreenWidth', "{}".format(tvmode["width"]))
                        #mupenSettings.save('ScreenHeight', "{}".format(tvmode["height"]))
                        mupenSettings.save('ScreenWidth', "1280")
                        mupenSettings.save('ScreenHeight', "720")
                        return

        sys.exit("The resolution for '{} {} {}' is not supported by your monitor".format(group, mode, drive))


def setPaths():
        mupenSettings.save('ScreenshotPath', recalboxFiles.SCREENSHOTS)
        mupenSettings.save('SaveStatePath', recalboxFiles.mupenSaves)
        mupenSettings.save('SaveSRAMPath', recalboxFiles.mupenSaves)