117 lines
2.1 KiB
Go
117 lines
2.1 KiB
Go
package item
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import (
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"encoding/json"
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"fmt"
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"time"
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"github.com/google/go-cmp/cmp"
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)
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type EventBody struct {
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Title string `json:"title"`
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Time Time `json:"time"`
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Duration time.Duration `json:"duration"`
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}
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func (e EventBody) MarshalJSON() ([]byte, error) {
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type Alias EventBody
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return json.Marshal(&struct {
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Duration string `json:"duration"`
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*Alias
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}{
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Duration: e.Duration.String(),
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Alias: (*Alias)(&e),
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})
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}
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func (e *EventBody) UnmarshalJSON(data []byte) error {
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type Alias EventBody
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aux := &struct {
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Duration string `json:"duration"`
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*Alias
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}{
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Alias: (*Alias)(e),
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}
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if err := json.Unmarshal(data, &aux); err != nil {
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return err
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}
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var err error
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if e.Duration, err = time.ParseDuration(aux.Duration); err != nil {
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return err
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}
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return nil
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}
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type Event struct {
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ID string `json:"id"`
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Date Date `json:"date"`
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Recurrer Recurrer `json:"recurrer"`
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RecurNext Date `json:"recurNext"`
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EventBody
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}
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func NewEvent(i Item) (Event, error) {
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if i.Kind != KindEvent {
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return Event{}, fmt.Errorf("item is not an event")
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}
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var e Event
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if err := json.Unmarshal([]byte(i.Body), &e); err != nil {
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return Event{}, fmt.Errorf("could not unmarshal item body: %v", err)
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}
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e.ID = i.ID
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e.Date = i.Date
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e.Recurrer = i.Recurrer
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e.RecurNext = i.RecurNext
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return e, nil
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}
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func (e Event) Item() (Item, error) {
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body, err := json.Marshal(e.EventBody)
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if err != nil {
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return Item{}, fmt.Errorf("could not marshal event body to json")
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}
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return Item{
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ID: e.ID,
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Kind: KindEvent,
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Date: e.Date,
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Recurrer: e.Recurrer,
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RecurNext: e.RecurNext,
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Body: string(body),
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}, nil
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}
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func (e Event) Valid() bool {
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if e.Title == "" {
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return false
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}
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if e.Date.IsZero() {
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return false
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}
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if e.Duration.Seconds() < 1 {
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return false
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}
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return true
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}
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func EventDiff(a, b Event) string {
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aJSON, _ := json.Marshal(a)
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bJSON, _ := json.Marshal(b)
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return cmp.Diff(string(aJSON), string(bJSON))
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}
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func EventDiffs(a, b []Event) string {
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aJSON, _ := json.Marshal(a)
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bJSON, _ := json.Marshal(b)
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return cmp.Diff(string(aJSON), string(bJSON))
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}
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