import json


class TokenCodeGenerator:
    def generate_css_variables(self, tokens):
        """Generate CSS custom properties"""
        css = ":root {\n"
        
        # Colors
        for name, color in tokens.get('colors', {}).items():
            css += f"  --color-{name}: {color['hex']};\n"
            css += f"  --color-{name}-rgb: {color['rgb']};\n"
        
        css += "\n"
        
        # Spacing
        for name, value in tokens.get('spacing', {}).items():
            css += f"  --spacing-{name}: {value};\n"
        
        css += "\n"
        
        # Typography
        if 'typography' in tokens:
            for name, props in tokens['typography'].items():
                css += f"  --font-{name}: {props.get('family', 'sans-serif')};\n"
                css += f"  --font-size-{name}: {props.get('size', '16px')};\n"
                css += f"  --font-weight-{name}: {props.get('weight', '400')};\n"
        
        css += "}\n\n"
        
        # Add example usage comments
        css += "/* Example usage:\n"
        css += " * color: var(--color-primary);\n"
        css += " * padding: var(--spacing-medium);\n"
        css += " * font-family: var(--font-body);\n"
        css += " */\n"
        
        return css
    
    def generate_tailwind_config(self, tokens):
        """Generate Tailwind configuration"""
        config = {
            "theme": {
                "extend": {
                    "colors": {},
                    "spacing": {},
                    "fontFamily": {},
                    "fontSize": {},
                    "fontWeight": {}
                }
            }
        }
        
        # Add colors
        for name, color in tokens.get('colors', {}).items():
            config["theme"]["extend"]["colors"][name] = color['hex']
        
        # Add spacing
        for name, value in tokens.get('spacing', {}).items():
            config["theme"]["extend"]["spacing"][name] = value
        
        # Add typography
        if 'typography' in tokens:
            for name, props in tokens['typography'].items():
                if 'family' in props:
                    config["theme"]["extend"]["fontFamily"][name] = props['family']
                if 'size' in props:
                    config["theme"]["extend"]["fontSize"][name] = props['size']
                if 'weight' in props:
                    config["theme"]["extend"]["fontWeight"][name] = props['weight']
        
        # Format as JavaScript module
        output = "/** @type {import('tailwindcss').Config} */\n"
        output += f"module.exports = {json.dumps(config, indent=2)}"
        
        return output
    
    def generate_json_tokens(self, tokens):
        """Generate W3C Design Token Community Group format"""
        formatted_tokens = {
            "$schema": "https://design-tokens.github.io/community-group/format.json",
            "tokens": {}
        }
        
        # Colors
        if 'colors' in tokens:
            formatted_tokens["tokens"]["color"] = {}
            for name, color in tokens['colors'].items():
                formatted_tokens["tokens"]["color"][name] = {
                    "$value": color['hex'],
                    "$type": "color",
                    "$description": f"Color {name} - {color.get('proportion', 0)*100:.1f}% of design"
                }
        
        # Spacing
        if 'spacing' in tokens:
            formatted_tokens["tokens"]["spacing"] = {}
            for name, value in tokens['spacing'].items():
                formatted_tokens["tokens"]["spacing"][name] = {
                    "$value": value,
                    "$type": "dimension"
                }
        
        # Typography
        if 'typography' in tokens:
            formatted_tokens["tokens"]["typography"] = {}
            for name, props in tokens['typography'].items():
                formatted_tokens["tokens"]["typography"][name] = {
                    "fontFamily": {
                        "$value": props.get('family', 'sans-serif'),
                        "$type": "fontFamily"
                    },
                    "fontSize": {
                        "$value": props.get('size', '16px'),
                        "$type": "dimension"
                    },
                    "fontWeight": {
                        "$value": props.get('weight', '400'),
                        "$type": "fontWeight"
                    }
                }
        
        return json.dumps(formatted_tokens, indent=2)
    
    def generate_style_dictionary(self, tokens):
        """Generate Style Dictionary format tokens"""
        sd_tokens = {
            "color": {},
            "spacing": {},
            "typography": {}
        }
        
        # Transform colors
        for name, color in tokens.get('colors', {}).items():
            sd_tokens["color"][name] = {
                "value": color['hex'],
                "type": "color",
                "attributes": {
                    "rgb": color.get('rgb', ''),
                    "proportion": color.get('proportion', 0)
                }
            }
        
        # Transform spacing
        for name, value in tokens.get('spacing', {}).items():
            sd_tokens["spacing"][name] = {
                "value": value,
                "type": "spacing"
            }
        
        # Transform typography
        if 'typography' in tokens:
            for name, props in tokens['typography'].items():
                sd_tokens["typography"][name] = {
                    "fontFamily": {
                        "value": props.get('family', 'sans-serif')
                    },
                    "fontSize": {
                        "value": props.get('size', '16px')
                    },
                    "fontWeight": {
                        "value": props.get('weight', '400')
                    }
                }
        
        return json.dumps(sd_tokens, indent=2)
    
    def generate_scss_variables(self, tokens):
        """Generate SCSS variables"""
        scss = "// Design Tokens - SCSS Variables\n\n"
        
        # Colors
        scss += "// Colors\n"
        for name, color in tokens.get('colors', {}).items():
            scss += f"$color-{name}: {color['hex']};\n"
        
        scss += "\n// Spacing\n"
        for name, value in tokens.get('spacing', {}).items():
            scss += f"$spacing-{name}: {value};\n"
        
        scss += "\n// Typography\n"
        if 'typography' in tokens:
            for name, props in tokens['typography'].items():
                scss += f"$font-{name}: {props.get('family', 'sans-serif')};\n"
                scss += f"$font-size-{name}: {props.get('size', '16px')};\n"
                scss += f"$font-weight-{name}: {props.get('weight', '400')};\n"
                scss += "\n"
        
        # Add mixins for common patterns
        scss += "\n// Utility Mixins\n"
        scss += "@mixin text-style($style) {\n"
        scss += "  @if $style == 'heading' {\n"
        scss += "    font-family: $font-heading;\n"
        scss += "    font-size: $font-size-heading;\n"
        scss += "    font-weight: $font-weight-heading;\n"
        scss += "  } @else if $style == 'body' {\n"
        scss += "    font-family: $font-body;\n"
        scss += "    font-size: $font-size-body;\n"
        scss += "    font-weight: $font-weight-body;\n"
        scss += "  }\n"
        scss += "}\n"
        
        return scss