53 lines
1.1 KiB
Go
53 lines
1.1 KiB
Go
package domain
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import (
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"context"
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"errors"
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"regexp"
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"strings"
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"time"
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validation "github.com/go-ozzo/ozzo-validation/v4"
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)
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const SubredditCheckInterval = 2 * time.Minute
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type Subreddit struct {
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ID int64
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NextCheckAt time.Time
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// Reddit information
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SubredditID string
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Name string
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}
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func (sr *Subreddit) NormalizedName() string {
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return strings.ToLower(sr.Name)
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}
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func validPrefix(value interface{}) error {
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s, _ := value.(string)
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if len(s) < 2 {
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return nil
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}
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if s[1] != '_' || s[0] != 'u' {
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return nil
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}
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return errors.New("invalid subreddit format")
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}
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func (sr *Subreddit) Validate() error {
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return validation.ValidateStruct(sr,
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validation.Field(&sr.Name, validation.Required, validation.Length(2, 21), validation.By(validPrefix), validation.Match(regexp.MustCompile(`^[a-zA-Z0-9]\w*$`))),
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validation.Field(&sr.SubredditID, validation.Required, validation.Length(4, 9)),
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)
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}
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type SubredditRepository interface {
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GetByID(ctx context.Context, id int64) (Subreddit, error)
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GetByName(ctx context.Context, name string) (Subreddit, error)
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CreateOrUpdate(ctx context.Context, sr *Subreddit) error
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}
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