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server.go
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server.go
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package main
import (
"fmt"
"html/template"
"io/ioutil"
"net/http"
"net/url"
"strings"
"github.com/go-martini/martini"
"github.com/martini-contrib/binding"
"github.com/martini-contrib/render"
)
type Stats struct {
Message string
}
type StatsForm struct {
YahooCityId string `form:"YahooCityId" binding:"required"`
YahooTempUnit string `form:"YahooTempUnit" binding:"required"`
}
type SchedulerForm struct {
CronStrings []string `form:"cronStrings[]" binding:"required"`
FuncNames []string `form:"funcNames[]" binding:"required"`
}
func startWebServer(app *Application) {
m := martini.Classic()
m.Map(app.db)
m.Map(app.modules["arduino"])
m.Map(app)
options := render.Options{
Layout: "layout",
Funcs: []template.FuncMap{
template.FuncMap{
"menus": func() interface{} { return moduleMenus(app) },
"functions": func() interface{} { return moduleFunctions(app) },
},
},
}
m.Use(render.Renderer(options))
m.Get("/", settingsHandler)
m.Get("/settings", settingsHandler)
m.Post("/settings", saveSettingsHandler)
m.Get("/scheduler", schedulerHandler)
m.Post("/scheduler", binding.Bind(SchedulerForm{}), saveSchedulerHandler)
m.Get("/:module/:action", getModuleHandler)
m.Post("/:module/:action", postModuleHandler)
m.Run()
}
type MenuItem struct {
Title string
Link string
}
type ModuleFunction struct {
Module string
FuncName string
}
func moduleMenus(app *Application) []MenuItem {
var menus []MenuItem
for name, module := range app.modules {
for _, menu := range module.Menus() {
menus = append(menus, MenuItem{Title: strings.Title(menu), Link: name + "/" + menu})
}
}
return menus
}
func moduleFunctions(app *Application) []ModuleFunction {
var funcs []ModuleFunction
for name, module := range app.modules {
for _, funcname := range module.Functions() {
funcs = append(funcs, ModuleFunction{Module: name, FuncName: funcname})
}
}
return funcs
}
func getModuleHandler(req *http.Request, params martini.Params, r render.Render, app *Application) {
module := app.modules[params["module"]]
if module != nil {
fmt.Println(req.URL.Query())
template, data := module.Handle("GET", params["action"], req.URL.Query())
if template != "" {
r.HTML(200, template, data)
} else {
r.JSON(200, data)
}
}
}
func postModuleHandler(w http.ResponseWriter, r *http.Request, app *Application, params martini.Params) {
module := app.modules[params["module"]]
module.Handle("POST", params["action"], url.Values{})
route := fmt.Sprintf("/%s/%s", params["module"], params["action"])
http.Redirect(w, r, route, 302)
}
func settingsHandler(r render.Render, db storage, app *Application) {
sets := make(map[string][]string)
for name, module := range app.modules {
sets[name] = module.Settings()
}
r.HTML(200, "settings", db.getSettings())
}
func saveSettingsHandler(w http.ResponseWriter, r *http.Request, db storage, app *Application) {
body, _ := ioutil.ReadAll(r.Body)
v, _ := url.ParseQuery(string(body))
sets := make(settings)
for name, module := range app.modules {
sets[name] = make(map[string]string)
for _, setting := range module.Settings() {
form_key := fmt.Sprintf("%s[%s]", name, setting)
sets[name][setting] = v.Get(form_key)
fmt.Printf("sets[%s][%s] = %s\n", name, setting, sets[name][setting])
}
module.Initialize(sets[name], db)
}
db.saveSettings(sets)
http.Redirect(w, r, "/settings", 302)
}
func schedulerHandler(r render.Render, db storage) {
r.HTML(200, "scheduler", db.getSchedules())
}
func saveSchedulerHandler(w http.ResponseWriter, r *http.Request, f SchedulerForm, db storage, app *Application) {
var items []scheduleItem
for i := range f.CronStrings {
if f.CronStrings[i] != "" && f.FuncNames[i] != "" {
arr := strings.Split(f.FuncNames[i], ":")
moduleName, funcName := arr[0], arr[1]
items = append(items, scheduleItem{CronString: f.CronStrings[i], Module: moduleName, FuncName: funcName})
}
}
db.saveSchedules(items)
app.scheduler.Reload()
http.Redirect(w, r, "/scheduler", 302)
}