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package main
import (
"bytes"
"context"
"flag"
"fmt"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
_ "github.com/jackc/pgx/stdlib"
"github.com/jmoiron/sqlx"
_ "github.com/mattn/go-sqlite3"
"src.userspace.com.au/sws"
"src.userspace.com.au/sws/store"
"src.userspace.com.au/templates"
)
var Version string
// Flags
var (
verbose *bool
addr *string
dsn *string
noMigrate *bool
)
var log, debug sws.Logger
func init() {
verbose = boolFlag("verbose", "v", false, "VERBOSE", "enable verbose output")
addr = stringFlag("listen", "l", "localhost:5000", "LISTEN", "listen address")
dsn = stringFlag("dsn", "", "file:sws.db?cache=shared", "DSN", "database password")
noMigrate = boolFlag("no-migrate", "m", false, "NOMIGRATE", "disable migrations")
// Default to no log
log = func(v ...interface{}) {}
debug = func(v ...interface{}) {}
}
type Renderer interface {
Render(http.ResponseWriter, string, interface{}) error
}
func main() {
flag.Parse()
if *verbose {
log = func(v ...interface{}) {
fmt.Fprintf(os.Stdout, "[%s] ", time.Now().Format(time.RFC3339))
fmt.Fprintln(os.Stdout, v...)
}
}
if d := os.Getenv("DEBUG"); d != "" {
debug = func(v ...interface{}) {
fmt.Fprintf(os.Stdout, "[%s] ", time.Now().Format(time.RFC3339))
fmt.Fprintln(os.Stdout, v...)
}
}
log("version", Version)
driver := strings.SplitN(*dsn, ":", 2)[0]
if driver == "file" {
driver = "sqlite3"
}
if noMigrate == nil || !*noMigrate {
v, err := migrateDatabase(driver, *dsn)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to migrate: %s", err)
os.Exit(2)
}
log("database at version", v)
}
db, err := sqlx.Open(driver, *dsn)
if err != nil {
log(err)
os.Exit(1)
}
defer db.Close()
if err := db.Ping(); err != nil {
log(err)
os.Exit(1)
}
var st sws.Store
if driver == "pgx" {
//st = store.P{db}
} else {
st = store.NewSqlite3Store(db)
}
tmpls, err := LoadHTMLTemplateMap(map[string][]string{
"sites": []string{"layouts/base.tmpl", "sites.tmpl", "charts.tmpl"},
"site": []string{"layouts/base.tmpl", "site.tmpl", "charts.tmpl"},
"home": []string{"layouts/public.tmpl", "home.tmpl"},
"example": []string{"example.tmpl"},
}, funcMap)
if err != nil {
log(err)
os.Exit(1)
}
//debug(tmpls.DefinedTemplates())
renderer := templates.NewRenderer(tmpls)
r := chi.NewRouter()
r.Use(middleware.RequestID)
r.Use(middleware.RealIP)
if *verbose {
r.Use(middleware.Logger)
}
r.Use(middleware.Recoverer)
siteCtx := getSiteCtx(st)
// For counter
r.Get("/sws.js", handleCounter(*addr))
r.Get("/sws.gif", handleHitCounter(st))
// For UI
r.Get("/hits", handleHits(st))
r.Route("/sites", func(r chi.Router) {
r.Get("/", handleSites(st, renderer))
r.Route("/{siteID}", func(r chi.Router) {
r.Use(siteCtx)
r.Get("/", handleSite(st, renderer))
r.Route("/sparklines", func(r chi.Router) {
r.Get("/{b:\\d+}-{e:\\d+}.svg", sparklineHandler(st))
})
r.Route("/charts", func(r chi.Router) {
r.Get("/{b:\\d+}-{e:\\d+}.svg", svgChartHandler(st))
r.Get("/{b:\\d+}-{e:\\d+}.png", svgChartHandler(st))
})
})
})
// Example
r.Get("/test.html", handleExample(renderer))
r.Route("/", func(r chi.Router) {
r.Get("/", handleIndex(renderer))
r.Get("/*", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
p := strings.TrimPrefix(r.URL.Path, "/")
if b, err := StaticLoadTemplate(p); err == nil {
name := filepath.Base(p)
http.ServeContent(w, r, name, time.Now(), bytes.NewReader(b))
}
}))
})
log("listening at", *addr)
http.ListenAndServe(*addr, r)
}
func getSiteCtx(db sws.SiteStore) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(chi.URLParam(r, "siteID"))
if err != nil {
panic(err)
}
site, err := db.GetSiteByID(id)
if err != nil {
http.Error(w, http.StatusText(404), 404)
return
}
ctx := context.WithValue(r.Context(), "site", site)
next.ServeHTTP(w, r.WithContext(ctx))
})
}
}
// func getAuthCtx(db sws.UserStore) func(http.Handler) http.Handler {
// return func(next http.Handler) http.Handler {
// return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// ctx := context.WithValue(r.Context(), "user", user)
// next.ServeHTTP(w, r.WithContext(ctx))
// })
// }
// }
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