74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
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package api
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import (
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"hash/fnv"
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"io"
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"github.com/gofiber/fiber/v2"
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"github.com/gomarkdown/markdown"
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"github.com/gomarkdown/markdown/html"
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"github.com/gomarkdown/markdown/parser"
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"go.uber.org/multierr"
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"github.com/baez90/goveal/config"
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"github.com/baez90/goveal/fs"
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"github.com/baez90/goveal/rendering"
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)
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const (
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parserExtensions = parser.NoIntraEmphasis | parser.Tables | parser.FencedCode |
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parser.Autolink | parser.Strikethrough | parser.SpaceHeadings | parser.HeadingIDs |
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parser.BackslashLineBreak | parser.DefinitionLists | parser.MathJax | parser.Titleblock |
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parser.OrderedListStart | parser.Attributes
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)
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type Views struct {
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cfg *config.Components
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wdfs fs.FS
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mdFilepath string
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}
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func RegisterViews(app *fiber.App, wdfs fs.FS, mdFilepath string, cfg *config.Components) {
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p := &Views{cfg: cfg, wdfs: wdfs, mdFilepath: mdFilepath}
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app.Get("/", p.IndexPage)
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app.Get("/index.html", p.IndexPage)
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app.Get("/index.htm", p.IndexPage)
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app.Get("/slides", p.RenderedMarkdown)
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}
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func (p *Views) IndexPage(ctx *fiber.Ctx) error {
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return ctx.Render("index", fiber.Map{
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"Reveal": p.cfg.Reveal,
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"Rendering": p.cfg.Rendering,
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})
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}
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func (p *Views) RenderedMarkdown(ctx *fiber.Ctx) (err error) {
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f, err := p.wdfs.Open(p.mdFilepath)
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if err != nil {
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return err
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}
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defer multierr.AppendInvoke(&err, multierr.Close(f))
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data, err := io.ReadAll(f)
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if err != nil {
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return err
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}
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mdParser := parser.NewWithExtensions(parserExtensions)
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rr := &rendering.RevealRenderer{
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StateMachine: rendering.NewStateMachine("***", "---"),
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Hash: fnv.New32a(),
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}
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renderer := html.NewRenderer(html.RendererOptions{
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Flags: html.CommonFlags | html.HrefTargetBlank,
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RenderNodeHook: rr.RenderHook,
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})
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ctx.Append(fiber.HeaderContentType, fiber.MIMETextHTML)
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if _, err = ctx.Write(markdown.ToHTML(data, mdParser, renderer)); err != nil {
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return err
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}
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return err
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}
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