class Phlex::Compiler::Generators::Content

def bare_string_value
	@formatter.append do |f|
		f.text Hescape.escape_html(
			@content.parts.first.value
		)
	end
end

def bare_string_value?
	case @content
	in SyntaxTree::StringLiteral[parts: [SyntaxTree::TStringContent]]
		true
	else
		false
	end
end

def call
	return if nil_value?
	return bare_string_value if bare_string_value?
	return symbol_value if symbol_value?
	return numeric_value if numeric_value?
	return variable_value if variable_value?
	unknown_value
end

def initialize(formatter, content:, mutating: false)
	@formatter = formatter
	@content = content
	@mutating = mutating
end

def nil_value?
	case @content
	in SyntaxTree::VarRef[value: SyntaxTree::Kw[value: "nil"]]
		true
	else
		false
	end
end

def numeric_value
	@formatter.append do |f|
		f.text Hescape.escape_html(
			@content.value
		)
	end
end

def numeric_value?
	@content.is_a?(SyntaxTree::Int) || @content.is_a?(SyntaxTree::FloatLiteral)
end

def symbol_value
	@formatter.append do |f|
		f.text Hescape.escape_html(
			@content.value.value
		)
	end
end

def symbol_value?
	@content.is_a?(SyntaxTree::SymbolLiteral)
end

def unknown_value
	@formatter.breakable(force: true)
	if @mutating
		@content.format(@formatter)
	else
		@formatter.text "yield_content {"
		@formatter.breakable(force: true)
		@content.format(@formatter)
		@formatter.breakable(force: true)
		@formatter.text "}"
	end
	@formatter.breakable(force: true)
end

def variable_value
	@formatter.chain_append do |f|
		f.text "Hescape.escape_html("
		@content.format(f)
		f.text ")"
	end
end

def variable_value?
	@content.is_a?(SyntaxTree::VarRef)
end