The main Go program for generating HTML code

main.go

package main

import (
    "bufio"
    "bytes"
    "html/template"
    "os"
)

type product struct {
    Img         string
    Name        string
    Price       string
    Stars       float64
    Reviews     int
    Description string
}

func subtr(a, b float64) float64 {
    return a - b
}

func list(e ...float64) []float64 {
    return e
}

func main() {

    data := []product{
        {"images/1.png", "strawberries", "$2.00", 4.0, 251, "Lorem ipsum dolor sit amet, consectetur adipiscing elit."},
        {"images/2.png", "onions", "$2.80", 5.0, 123, "Morbi sit amet erat vitae purus consequat vehicula nec sit amet purus."},
        {"images/3.png", "tomatoes", "$3.10", 4.5, 235, "Curabitur tristique odio et nibh auctor, ut sollicitudin justo condimentum."},
        {"images/4.png", "courgette", "$1.20", 4.0, 251, "Phasellus at leo a purus consequat ornare ac aliquam quam."},
        {"images/5.png", "broccoli", "$3.80", 3.5, 123, "Maecenas sed ante sagittis, dapibus dui quis, hendrerit orci."},
        {"images/6.png", "potatoes", "$3.00", 2.5, 235, "Vivamus malesuada est et tellus porta, vel consectetur orci dapibus."},
    }

    allFiles := []string{"content.tmpl", "footer.tmpl", "header.tmpl", "page.tmpl"}

    var allPaths []string
    for _, tmpl := range allFiles {
        allPaths = append(allPaths, "./templates/"+tmpl)
    }

    templates := template.Must(template.New("").Funcs(template.FuncMap{"subtr": subtr, "list": list}).ParseFiles(allPaths...))

    var processed bytes.Buffer
    templates.ExecuteTemplate(&processed, "page", data)

    outputPath := "./static/index.html"
    f, _ := os.Create(outputPath)
    w := bufio.NewWriter(f)
    w.WriteString(string(processed.Bytes()))
    w.Flush()

}