F04C
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package main
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import (
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"embed"
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"fmt"
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"html/template"
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"io/fs"
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"log"
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"net/http"
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"strconv"
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"bookworm/internal/solver"
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)
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//go:embed web/templates/index.html web/static/styles.css
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var webAssets embed.FS
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type pageData struct {
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Letters string
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MinLength int
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Best *solver.Result
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Results []solver.Result
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Error string
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}
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func main() {
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engine, err := solver.NewEngine("words/words.txt")
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if err != nil {
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log.Fatalf("load dictionary: %v", err)
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}
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tmpl := template.Must(template.ParseFS(webAssets, "web/templates/index.html"))
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staticFS, err := fs.Sub(webAssets, "web/static")
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if err != nil {
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log.Fatalf("load static assets: %v", err)
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}
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mux := http.NewServeMux()
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mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.FS(staticFS))))
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mux.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
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data := pageData{MinLength: 3}
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letters := request.URL.Query().Get("letters")
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if letters != "" {
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data.Letters = letters
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}
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if rawMinLength := request.URL.Query().Get("min"); rawMinLength != "" {
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minLength, convErr := strconv.Atoi(rawMinLength)
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if convErr != nil || minLength < 2 || minLength > 12 {
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data.Error = "Minimum length must be between 2 and 12."
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} else {
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data.MinLength = minLength
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}
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}
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if data.Letters != "" && data.Error == "" {
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results, solveErr := engine.FindMatches(data.Letters, data.MinLength, 20)
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if solveErr != nil {
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data.Error = solveErr.Error()
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} else if len(results) > 0 {
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data.Best = &results[0]
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data.Results = results[1:]
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} else {
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data.Error = "No words matched those letters in the current dictionary."
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}
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}
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if err := tmpl.Execute(writer, data); err != nil {
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http.Error(writer, fmt.Sprintf("render page: %v", err), http.StatusInternalServerError)
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}
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})
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address := ":8080"
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log.Printf("Bookworm solver running at http://localhost%s", address)
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if err := http.ListenAndServe(address, mux); err != nil {
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log.Fatal(err)
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}
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}
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