Redmage/server/routes/subreddit_create.go

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package routes
import (
"encoding/json"
"errors"
"fmt"
"net/http"
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"strconv"
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"github.com/a-h/templ"
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"github.com/robfig/cron/v3"
"github.com/tigorlazuardi/redmage/api"
"github.com/tigorlazuardi/redmage/api/reddit"
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"github.com/tigorlazuardi/redmage/models"
"github.com/tigorlazuardi/redmage/pkg/errs"
"github.com/tigorlazuardi/redmage/pkg/log"
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"github.com/tigorlazuardi/redmage/views/components"
"github.com/tigorlazuardi/redmage/views/subredditsview/addview"
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)
func (routes *Routes) SubredditsCreateAPI(rw http.ResponseWriter, req *http.Request) {
ctx, span := tracer.Start(req.Context(), "*Routes.SubredditsCreate")
defer span.End()
var (
body *models.Subreddit
enc = json.NewEncoder(rw)
)
if err := json.NewDecoder(req.Body).Decode(&body); err != nil {
rw.WriteHeader(http.StatusBadRequest)
_ = enc.Encode(map[string]string{"error": fmt.Sprintf("failed to decode json body: %s", err)})
return
}
if err := validateSubredditsCreate(body); err != nil {
rw.WriteHeader(http.StatusBadRequest)
_ = enc.Encode(map[string]string{"error": err.Error()})
return
}
actual, err := routes.API.SubredditCheck(ctx, api.SubredditCheckParam{
Subreddit: body.Name,
SubredditType: reddit.SubredditType(body.Subtype),
})
if err != nil {
log.New(ctx).Err(err).Error("subreddit check returns error")
code, message := errs.HTTPMessage(err)
rw.WriteHeader(code)
_ = enc.Encode(map[string]string{"error": message})
return
}
body.Name = actual
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sub, err := routes.API.SubredditsCreate(ctx, body)
if err != nil {
log.New(ctx).Err(err).Error("failed to create subreddit")
code, message := errs.HTTPMessage(err)
rw.WriteHeader(code)
_ = enc.Encode(map[string]string{"error": message})
return
}
rw.WriteHeader(http.StatusCreated)
if err := enc.Encode(sub); err != nil {
log.New(ctx).Err(err).Error("failed to encode subreddit into json")
}
}
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func (routes *Routes) SubredditsCreateHTMX(rw http.ResponseWriter, r *http.Request) {
ctx, span := tracer.Start(r.Context(), "*Routes.SubredditsCreateHTMX")
defer span.End()
sub, errComponents := subredditsDataFromRequest(r)
if len(errComponents) > 0 {
rw.WriteHeader(http.StatusBadRequest)
for _, err := range errComponents {
if e := err.Render(ctx, rw); e != nil {
log.New(ctx).Err(e).Error("failed to render error")
}
}
return
}
actual, err := routes.API.SubredditCheck(ctx, api.SubredditCheckParam{
Subreddit: sub.Name,
SubredditType: reddit.SubredditType(sub.Subtype),
})
if err != nil {
rw.WriteHeader(http.StatusBadRequest)
log.New(ctx).Err(err).Error("subreddit check returns error")
renderer := addview.SubredditInputForm(addview.SubredditInputData{
Value: sub.Name,
Error: err.Error(),
Type: reddit.SubredditType(sub.Subtype),
HXSwapOOB: "true",
})
if err := renderer.Render(ctx, rw); err != nil {
log.New(ctx).Err(err).Error("failed to render error")
}
return
}
sub.Name = actual
_, err = routes.API.SubredditsCreate(ctx, sub)
if err != nil {
log.New(ctx).Err(err).Error("failed to create subreddit")
code, message := errs.HTTPMessage(err)
rw.Header().Set("HX-Retarget", components.NotificationContainerID)
rw.WriteHeader(code)
if err := components.ErrorNotication(message).Render(ctx, rw); err != nil {
log.New(ctx).Err(err).Error("failed to render error")
}
return
}
rw.Header().Set("HX-Redirect", "/subreddits")
rw.WriteHeader(http.StatusCreated)
_, _ = rw.Write([]byte("Subreddit created"))
}
func subredditsDataFromRequest(r *http.Request) (sub *models.Subreddit, errs []templ.Component) {
sub = &models.Subreddit{}
var t reddit.SubredditType
err := t.Parse(r.FormValue("type"))
if err != nil {
errs = append(errs, addview.SubredditTypeInput(addview.SubredditTypeData{
Value: strconv.Itoa(int(t)),
Error: err.Error(),
HXSwapOOB: "true",
}))
return nil, errs
}
sub.Subtype = int32(t)
sub.Name = r.FormValue("name")
if sub.Name == "" {
errs = append(errs, addview.SubredditInputForm(addview.SubredditInputData{
Value: sub.Name,
Error: "name is required",
Type: t,
HXSwapOOB: "true",
}))
return nil, errs
}
enableSchedule, _ := strconv.Atoi(r.FormValue("enable_schedule"))
sub.EnableSchedule = int32(enableSchedule)
if sub.EnableSchedule > 1 {
sub.EnableSchedule = 1
} else if sub.EnableSchedule < 0 {
sub.EnableSchedule = 0
}
if sub.EnableSchedule == 0 {
sub.Schedule = "@daily"
}
if sub.EnableSchedule == 1 {
sub.Schedule = r.FormValue("schedule")
_, err = cronParser.Parse(sub.Schedule)
if err != nil {
errs = append(errs, addview.ScheduleInput(addview.ScheduleInputData{
Value: sub.Schedule,
Error: fmt.Sprintf("invalid cron schedule: %s", err),
HXSwapOOB: "true",
}))
}
}
countback, _ := strconv.Atoi(r.FormValue("countback"))
sub.Countback = int32(countback)
if sub.Countback < 1 {
errs = append(errs, addview.CountbackInput(addview.CountbackInputData{
Value: int64(sub.Countback),
Error: "countback must be 1 or higher",
}))
}
return sub, errs
}
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var cronParser = cron.NewParser(cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor)
func validateSubredditsCreate(body *models.Subreddit) error {
if body.Name == "" {
return errors.New("name is required")
}
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if body.EnableSchedule > 1 {
body.EnableSchedule = 1
} else if body.EnableSchedule < 0 {
body.EnableSchedule = 0
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}
if body.Subtype > 1 {
body.Subtype = 1
} else if body.Subtype < 0 {
body.Subtype = 0
}
if body.Schedule == "" {
return errors.New("schedule is required")
}
_, err := cronParser.Parse(body.Schedule)
if err != nil {
return fmt.Errorf("bad cron schedule: %w", err)
}
if body.Countback < 1 {
return errors.New("countback must be 1 or higher")
}
return nil
}