Redmage/server/routes/subreddit_create.go

95 lines
2.4 KiB
Go

package routes
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"github.com/robfig/cron/v3"
"github.com/tigorlazuardi/redmage/api"
"github.com/tigorlazuardi/redmage/api/reddit"
"github.com/tigorlazuardi/redmage/models"
"github.com/tigorlazuardi/redmage/pkg/errs"
"github.com/tigorlazuardi/redmage/pkg/log"
)
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
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")
}
}
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")
}
if body.Enable > 1 {
body.Enable = 1
} else if body.Enable < 0 {
body.Enable = 0
}
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
}