From c1d6f344316789c560107777d9d332c9a8f15bd3 Mon Sep 17 00:00:00 2001
From: Eddy Pedroni <eddy@0xf7.com>
Date: Sat, 1 Feb 2020 11:27:48 +0100
Subject: Basic page generation works

---
 main.go     |  3 +--
 template.go | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/main.go b/main.go
index ad5e819..7ed9a77 100644
--- a/main.go
+++ b/main.go
@@ -5,7 +5,6 @@ import (
 	"os"
 )
 
-
 func main() {
 	// show usage if config file is missing
 	if len(os.Args) < 2 {
@@ -35,6 +34,6 @@ func main() {
 	fmt.Println("Navigation:")
 	fmt.Println(navItems)
 
-        generatePages(pages, navItems, cfg)
+	generatePages(pages, navItems, cfg)
 
 }
diff --git a/template.go b/template.go
index ff69756..ed38d2c 100644
--- a/template.go
+++ b/template.go
@@ -1,5 +1,13 @@
 package main
 
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"text/template"
+)
+
 type templateData struct {
 	SiteTitle     string
 	StylesheetUrl string
@@ -7,6 +15,49 @@ type templateData struct {
 	Content       []string
 }
 
-func generatePages(pages map[string]page, nav []navItem, cfg config) () {
+func applyTemplate(dir string, data templateData, tmpl *template.Template) error {
+	// ensure directory exists
+	os.MkdirAll(strings.ToLower(dir), 0755)
+	file := filepath.Join(strings.ToLower(dir), "index.html")
+
+	// create file, fail if it already exists
+	f, err := os.Create(file)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	// apply template, write to file
+	err = tmpl.Execute(f, data)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func loadTemplate(cfg config) (templ *template.Template) {
+	tmpl_raw, err := ioutil.ReadFile(cfg.TemplateFile)
+	if err != nil {
+		panic(err)
+	}
+	templ, err = template.New("template").Parse(string(tmpl_raw))
+	if err != nil {
+		panic(err)
+	}
+	return
+}
 
+func generatePages(pages map[string]page, nav []navItem, cfg config) {
+	template := loadTemplate(cfg)
+	data := templateData{SiteTitle: "TestTitle",
+		StylesheetUrl: cfg.CssFile,
+		Nav:           nav}
+	for k, v := range pages {
+		data.Content = v.content
+		err := applyTemplate("/tmp/tempgodocs/"+k, data, template)
+		if err != nil {
+			panic(err)
+		}
+	}
 }
-- 
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