package generator

import (
	"os"
	"path/filepath"

	"mokhan.ca/xlgmokha/gitmal/internal/templates"
)

func GenerateCSS(params Params) error {
	cssDir := filepath.Join(params.OutputDir, "css")
	if err := os.MkdirAll(cssDir, 0o755); err != nil {
		return err
	}

	if err := writeLayoutCSS(cssDir); err != nil {
		return err
	}
	if err := writeMarkdownCSS(cssDir); err != nil {
		return err
	}
	if err := writeSyntaxCSS(cssDir); err != nil {
		return err
	}

	return nil
}

func writeLayoutCSS(cssDir string) error {
	return os.WriteFile(filepath.Join(cssDir, "layout.css"), []byte(templates.LayoutCSS), 0o644)
}

func writeMarkdownCSS(cssDir string) error {
	css := "@media (prefers-color-scheme: light) {\n" +
		templates.CSSMarkdownLight +
		"\n}\n" +
		"@media (prefers-color-scheme: dark) {\n" +
		templates.CSSMarkdownDark +
		"\n}"
	return os.WriteFile(filepath.Join(cssDir, "markdown.css"), []byte(css), 0o644)
}

func writeSyntaxCSS(cssDir string) error {
	css := "@media (prefers-color-scheme: light) {\n" +
		templates.CSSSyntaxLight +
		"\n}\n" +
		"@media (prefers-color-scheme: dark) {\n" +
		templates.CSSSyntaxDark +
		"\n}"
	return os.WriteFile(filepath.Join(cssDir, "syntax.css"), []byte(css), 0o644)
}