#!/usr/bin/env python

Import('env')
from compat import byte_to_str
from collections import OrderedDict

def make_splash(target, source, env):

    src = source[0].srcnode().abspath
    dst = target[0].srcnode().abspath
    f = open(src, "rb")
    g = open(dst, "w")

    buf = f.read()

    g.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
    g.write("#ifndef BOOT_SPLASH_H\n")
    g.write("#define BOOT_SPLASH_H\n")
    g.write('static const Color boot_splash_bg_color = Color::html("#232323");\n')
    g.write("static const unsigned char boot_splash_png[] = {\n")
    for i in range(len(buf)):
        g.write(byte_to_str(buf[i]) + ",\n")
    g.write("};\n")
    g.write("#endif")


def make_splash_editor(target, source, env):

    src = source[0].srcnode().abspath
    dst = target[0].srcnode().abspath
    f = open(src, "rb")
    g = open(dst, "w")

    buf = f.read()

    g.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
    g.write("#ifndef BOOT_SPLASH_EDITOR_H\n")
    g.write("#define BOOT_SPLASH_EDITOR_H\n")
    g.write('static const Color boot_splash_editor_bg_color = Color::html("#232323");\n')
    g.write("static const unsigned char boot_splash_editor_png[] = {\n")
    for i in range(len(buf)):
        g.write(byte_to_str(buf[i]) + ",\n")
    g.write("};\n")
    g.write("#endif")



def make_app_icon(target, source, env):

    src = source[0].srcnode().abspath
    dst = target[0].srcnode().abspath
    f = open(src, "rb")
    g = open(dst, "w")

    buf = f.read()

    g.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
    g.write("#ifndef APP_ICON_H\n")
    g.write("#define APP_ICON_H\n")
    g.write("static const unsigned char app_icon_png[] = {\n")
    for i in range(len(buf)):
        g.write(byte_to_str(buf[i]) + ",\n")
    g.write("};\n")
    g.write("#endif")

def make_default_controller_mappings(target, source, env):
    dst = target[0].srcnode().abspath
    g = open(dst, "w")

    g.write("/* THIS FILE IS GENERATED DO NOT EDIT */\n")
    g.write("#include \"default_controller_mappings.h\"\n")
    g.write("#include \"typedefs.h\"\n")

    # ensure mappings have a consistent order
    platform_mappings = OrderedDict()
    for src in source:
        src_path = src.srcnode().abspath
        f = open(src_path, "rb")

        # read mapping file and skip header
        mapping_file_lines = f.readlines()[2:]

        current_platform = None
        for line in mapping_file_lines:
            if not line:
                continue
            line = line.strip()
            if len(line) == 0:
                continue
            if line[0] == "#":
                current_platform = line[1:].strip()
                if current_platform not in platform_mappings:
                    platform_mappings[current_platform] = {}
            elif current_platform:
                line_parts = line.split(",")
                guid = line_parts[0]
                if guid in platform_mappings[current_platform]:
                    g.write("// WARNING - DATABASE {} OVERWROTE PRIOR MAPPING: {} {}\n".format(src_path, current_platform, platform_mappings[current_platform][guid]))
                valid_mapping = True
                for input_map in line_parts[2:]:
                    if "+" in input_map or "-" in input_map or "~" in input_map:
                        g.write("// WARNING - DISCARDED UNSUPPORTED MAPPING TYPE FROM DATABASE {}: {} {}\n".format(src_path, current_platform, line))
                        valid_mapping = False
                        break
                if valid_mapping:
                    platform_mappings[current_platform][guid] = line
            
    platform_variables = {
        "Linux": "#if X11_ENABLED",
        "Windows": "#ifdef WINDOWS_ENABLED",
        "Mac OS X": "#ifdef OSX_ENABLED",
        "Android": "#if defined(__ANDROID__)",
        "iOS": "#ifdef IPHONE_ENABLED",
        "Javascript": "#ifdef JAVASCRIPT_ENABLED",
        "UWP": "#ifdef UWP_ENABLED",
    }

    g.write("const char* DefaultControllerMappings::mappings[] = {\n")
    for platform, mappings in platform_mappings.items():
        variable = platform_variables[platform]
        g.write("{}\n".format(variable))
        for mapping in mappings.values():
            g.write("\t\"{}\",\n".format(mapping))
        g.write("#endif\n")

    g.write("};\n")

env.main_sources = []
env.add_source_files(env.main_sources, "*.cpp")

# order matters here.  higher index controller database files write on top of lower index database files
controller_databases = ["#main/gamecontrollerdb.txt", "#main/gamecontrollerdb_205.txt", "#main/gamecontrollerdb_204.txt", "#main/godotcontrollerdb.txt"]

env.Depends("#main/default_controller_mappings.gen.cpp", controller_databases)
env.Command("#main/default_controller_mappings.gen.cpp", controller_databases, make_default_controller_mappings)

env.main_sources.append("#main/default_controller_mappings.gen.cpp")

Export('env')

env.Depends("#main/splash.gen.h", "#main/splash.png")
env.Command("#main/splash.gen.h", "#main/splash.png", make_splash)

env.Depends("#main/splash_editor.gen.h", "#main/splash_editor.png")
env.Command("#main/splash_editor.gen.h", "#main/splash_editor.png", make_splash_editor)

env.Depends("#main/app_icon.gen.h", "#main/app_icon.png")
env.Command("#main/app_icon.gen.h", "#main/app_icon.png", make_app_icon)

SConscript('tests/SCsub')

lib = env.add_library("main", env.main_sources)
env.Prepend(LIBS=[lib])