commit 70b8cdb514c645e28b80e46c78e7b6d6514b97d2
Author: Miguel de la Cruz <miguel@ctrlz.es>
Date:   Tue Jul 2 02:06:25 2024 +0200

    Initial commit

diff --git a/.gitignore b/.gitignore
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index 0000000..5da6101
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/dist/
+/recipes/
+/sandwitchboard
\ No newline at end of file
diff --git a/Makefile b/Makefile
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index 0000000..7c6bbc9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,5 @@
+fmt:
+	go fmt ./...
+
+build:
+	go build -o sandwitchboard ./...
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..ecb2d26
--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+# Sandwitch board
+
+A simple CLI tool to generate a static website from a
+[cooklang](https://cooklang.org) recipes directory.
+
+## Roadmap
+
+- [ ] Recursively traverse the `recipes` directory.
+- [ ] Add a default CSS file.
+- [ ] Improve the steps rendering logic to avoid doing all of it
+      inside a template function.
+- [ ] Add image support for steps and the recipe.
+- [ ] Add an `index.html` file that lists all the recipes.
+- [ ] Embed the default `style.css` file.
+- [ ] Add command to copy the embedded templates to an external
+      directory.
+- [ ] Allow to read the templates from an external directory.
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c7466ca
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module git.ctrlz.es/sandwitchboard
+
+go 1.22.3
+
+require github.com/aquilax/cooklang-go v0.1.7
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..fabd8fb
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/aquilax/cooklang-go v0.1.7 h1:ynbGKI3o060m9NTlxnc1k7unjGOtJcfbxKWfiIOSqVo=
+github.com/aquilax/cooklang-go v0.1.7/go.mod h1:1/65y8LN2Nhr6WNVh64ZqggvZmeymQHKavxUONeJmTk=
diff --git a/sandwitchboard.go b/sandwitchboard.go
new file mode 100644
index 0000000..f9771f8
--- /dev/null
+++ b/sandwitchboard.go
@@ -0,0 +1,205 @@
+package main
+
+import (
+	"bytes"
+	"embed"
+	"flag"
+	"fmt"
+	"html/template"
+	"io"
+	"io/fs"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/aquilax/cooklang-go"
+)
+
+const (
+	stepPrefix       = "<p>"
+	stepSuffix       = "</p>"
+	ingredientPrefix = "<span class=\"ingredient\">"
+	ingredientSuffix = "</span>"
+	cookwarePrefix   = "<span class=\"cookware\">"
+	cookwareSuffix   = "</span>"
+	timerPrefix      = "<span class=\"timer\">"
+	timerSuffix      = "</span>"
+)
+
+//go:embed templates
+var embedTmpl embed.FS
+var funcMap = template.FuncMap{
+	"recipeSteps": func(r cooklang.Recipe) template.HTML {
+		var str = ""
+		for _, step := range r.Steps {
+			d := step.Directions
+
+			ingredients := make([]string, len(step.Ingredients))
+			for i, ingredient := range step.Ingredients {
+				ingredients[i] = ingredient.Name
+			}
+			d = hydrate(d, ingredients, ingredientPrefix, ingredientSuffix)
+
+			cookwareEls := make([]string, len(step.Cookware))
+			for i, cookware := range step.Cookware {
+				cookwareEls[i] = cookware.Name
+			}
+			d = hydrate(d, cookwareEls, cookwarePrefix, cookwareSuffix)
+
+			timers := make([]string, len(step.Timers))
+			for i, timer := range step.Timers {
+				timers[i] = fmt.Sprintf("%v %s", timer.Duration, timer.Unit)
+			}
+			d = hydrate(d, timers, timerPrefix, timerSuffix)
+
+			str += stepPrefix + d + stepSuffix
+		}
+
+		return template.HTML(str)
+	},
+}
+
+func hydrate(text string, elements []string, prefix, suffix string) string {
+	cursor := 0
+	for _, el := range elements {
+		slog.Debug("Chasing element", "cursor", cursor, "element", el)
+		idx := strings.Index(text[cursor:], el)
+		first := text[:cursor+idx]
+		rest := text[cursor+idx+len(el):]
+		text = first + prefix + el + suffix + rest
+		cursor += idx + len(prefix+el+suffix)
+		slog.Debug("Parsed element", "newCursor", cursor, "first", first, "rest", rest)
+	}
+	return text
+}
+
+func executeTemplate(name string, data any) ([]byte, error) {
+	path := filepath.Join("templates", fmt.Sprintf("%s.html.tmpl", name))
+	b, err := embedTmpl.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("cannot read embedded file %q: %w", path, err)
+	}
+
+	tmpl, err := template.New("").Funcs(funcMap).Parse(string(b))
+	if err != nil {
+		return nil, fmt.Errorf("cannot parse template %q: %w", path, err)
+	}
+
+	var strb bytes.Buffer
+	if err := tmpl.Execute(&strb, data); err != nil {
+		return nil, fmt.Errorf("cannot execute template %q: %w", path, err)
+	}
+
+	return strb.Bytes(), nil
+}
+
+func executeTemplateToFile(tmplName string, data any, filename string) error {
+	contents, err := executeTemplate(tmplName, data)
+	if err != nil {
+		return fmt.Errorf("cannot execute %q template: %w", tmplName, err)
+	}
+
+	if err := os.WriteFile(filename, contents, 0755); err != nil {
+		return fmt.Errorf("cannot write %q contents to %q: %w", tmplName, filename, err)
+	}
+
+	return nil
+}
+
+func copyFile(srcpath, dstpath string) error {
+	src, err := os.Open(srcpath)
+	if err != nil {
+		return fmt.Errorf("cannot open src file %q: %w", srcpath, err)
+	}
+	defer src.Close()
+
+	dst, err := os.Create(dstpath)
+	if err != nil {
+		return fmt.Errorf("cannot open dst file %q: %w", dstpath, err)
+	}
+	defer dst.Close()
+
+	if _, err := io.Copy(dst, src); err != nil {
+		return fmt.Errorf("cannot copy file from %q to %q: %w", srcpath, dstpath, err)
+	}
+
+	return dst.Sync()
+}
+
+func main() {
+	recipesFlag := flag.String("recipes", "recipes", "Path to the directory with the recipes.")
+	outputFlag := flag.String("output", "dist", "Path to the directory where the files will be generated.")
+	debugFlag := flag.Bool("debug", false, "Enables debug information.")
+	flag.Parse()
+
+	if *debugFlag {
+		slog.SetLogLoggerLevel(slog.LevelDebug)
+	}
+
+	fi, err := os.Stat(*outputFlag)
+	if err != nil && !os.IsNotExist(err) {
+		panic(err)
+	}
+
+	if !os.IsNotExist(err) && !fi.IsDir() {
+		panic(fmt.Errorf("path %q is not a directory", *outputFlag))
+	} else {
+		if err := os.RemoveAll(*outputFlag); err != nil {
+			panic(err)
+		}
+	}
+	if err := os.Mkdir(*outputFlag, 0755); err != nil {
+		panic(err)
+	}
+
+	walkErr := filepath.WalkDir(*recipesFlag, func(path string, d fs.DirEntry, err error) error {
+		slog.Debug("Walking through file", "path", path)
+		relpath := filepath.Join(strings.Split(path, "/")[1:]...)
+		ext := filepath.Ext(d.Name())
+		recipeName := strings.TrimSuffix(d.Name(), ext)
+		if d.IsDir() {
+			dirpath := filepath.Join(*outputFlag, relpath)
+			slog.Debug("Directory found, creating output dir", "path", path, "dirpath", dirpath)
+			if err := os.MkdirAll(dirpath, 0755); err != nil {
+				return fmt.Errorf("cannot create directory %s: %w", dirpath, err)
+			}
+			return nil
+		}
+
+		if ext != ".cook" {
+			dstPath := filepath.Join(*outputFlag, relpath)
+			slog.Debug("Non-recipe file found, copying", "src", path, "dst", dstPath)
+			if err := copyFile(path, dstPath); err != nil {
+				return fmt.Errorf("cannot copy file from %q to %q: %w", path, dstPath, err)
+			}
+			slog.Debug("File copy successful", "src", path, "dst", dstPath)
+			return nil
+		}
+
+		slog.Debug("Parsing file", "name", path)
+		recipe, err := cooklang.ParseFile(path)
+		if err != nil {
+			panic(err)
+		}
+
+		if len(recipe.Steps) == 0 {
+			slog.Debug("File is not a recipe", "name", path)
+			return nil
+		}
+
+		slog.Debug("Parsed file", "path", path, "steps", len(recipe.Steps))
+		recipeDistPath := filepath.Join(*outputFlag, filepath.Dir(relpath), fmt.Sprintf("%s.html", recipeName))
+		data := map[string]any{"name": recipeName, "recipe": recipe}
+		slog.Debug("Executing template", "recipeName", recipeName, "recipeWebPath", recipeDistPath)
+		if err := executeTemplateToFile("recipe", data, recipeDistPath); err != nil {
+			panic(err)
+		}
+
+		return nil
+	})
+
+	if walkErr != nil {
+		panic(walkErr)
+	}
+}
diff --git a/templates/recipe.html.tmpl b/templates/recipe.html.tmpl
new file mode 100644
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--- /dev/null
+++ b/templates/recipe.html.tmpl
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>{{.name}}</title>
+    <link rel="icon" type="image/png" href="favicon.png" />
+    <link rel="stylesheet" type="text/css" href="style.css" />
+  </head>
+  <body>
+    <h1>{{.name}}</h1>
+
+    {{if ne (len .recipe.Steps) 0}}
+    <ul>
+      {{range $k, $v := .recipe.Metadata}}
+      <li><em>{{$k}}:</em> {{$v}}</li>
+      {{end}}
+    </ul>
+    {{end}}
+
+    {{recipeSteps .recipe}}
+  </body>
+</html>