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path: root/src/theme.py
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import yaml,re, sys

def configure(theme):
    if "colors" in theme:
        colors=theme["colors"]
        window_colors=theme["window_colors"]
        for key1,value1 in window_colors.items():
            for key2,value2 in value1.items():
                if re.match("#.*",value2) == None:
                    window_colors[key1][key2]=colors[value2]
        theme["window_colors"]=window_colors
        
        bar_colors=theme["bar_colors"]
        for key1,value1 in bar_colors.items():
            if isinstance(value1,dict):
                for key2,value2 in value1.items():
                    if re.match("#.*",value2) == None:
                        bar_colors[key1][key2]=colors[value2]
            else:
                if re.match("#.*",value1) == None:
                    bar_colors[key1]=colors[value1]
        theme["bar_colors"]=bar_colors
    return(theme)

def validate(theme):
    abort=lambda msg: sys.exit("Error while loading theme: "+msg)
    inv_key=lambda key: abort("invalid key \""+key+"\"")
    for key,value in theme.items():
        if not(key in ["meta","colors","window_colors","bar_colors"]):
            inv_key(key)
        if key=="bar_colors":
            for key,value in value.items():
                if not(key in ["separator","background","statusline",
                               "focused_workspace","active_workspace","inactive_workspace","urgent_workspace"]):
                    inv_key(key)
        if key=="window_colors":
            for key,value in value.items():
                if not(key in ["focused","focused_inactive","unfocused","urgent","child_border"]):
                    inv_key(key)


def load(theme_file):
    f=open(theme_file,mode="r")
    theme=yaml.load(f,Loader=yaml.FullLoader)
    f.close()
    theme=configure(theme)
    validate(theme)
    return(theme)