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103 lines
2.3 KiB
Go
103 lines
2.3 KiB
Go
package implementations
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import (
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"errors"
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"log"
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"dymatrix.de/jspahl/todo/internal/types"
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)
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type Item struct {
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id int
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message string
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deleted bool
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}
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func (item Item) GetId() int {
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return item.id
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}
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func (item Item) GetMessage() string {
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return item.message
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}
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type MemoryProvider struct {
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index int
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items []Item
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itemsByUsers [][]*Item
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}
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func (prov MemoryProvider) CreateItem(item types.IItem) error {
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storedItem := Item{id: prov.index, message: item.GetMessage(), deleted: false}
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prov.items = append(prov.items, storedItem)
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prov.index++
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return nil
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}
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func (prov MemoryProvider) UpdateItem(item types.IItem) error {
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storedItem, err := prov.GetItemPtr(item.GetId())
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if err != nil {
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return err
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}
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storedItem.message = item.GetMessage()
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return nil
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}
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func (prov MemoryProvider) GetItemPtr(id int) (*Item, error) {
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log.Printf("Getting Item Ptr for %d\n", id)
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for i, item := range prov.items {
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if item.id == id && !item.deleted {
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return &prov.items[i], nil
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}
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}
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return nil, errors.New("Item not found")
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}
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func (prov MemoryProvider) GetItem(id int) (types.IItem, error) {
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item, err := prov.GetItemPtr(id)
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return *item, err
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}
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func (prov MemoryProvider) GetItemByUser(user types.IUser) ([]types.IItem, error) {
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var items []types.IItem
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for i := range prov.itemsByUsers[user.GetId()] {
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items = append(items, *prov.itemsByUsers[user.GetId()][i])
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}
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if len(items) == 0 {
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return items, errors.New("no items for user ")
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}
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return items, nil
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}
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func (prov MemoryProvider) GetAllItems() ([]types.IItem, error) {
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var items []types.IItem
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for _, item := range prov.items {
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if !item.deleted {
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items = append(items, item)
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}
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}
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return items, nil
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}
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func (prov MemoryProvider) Link(user types.IUser, item types.IItem) error {
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storedItem, err := prov.GetItemPtr(item.GetId())
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if err != nil {
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return err
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}
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prov.itemsByUsers[user.GetId()] = append(prov.itemsByUsers[user.GetId()], storedItem)
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return nil
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}
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func (prov MemoryProvider) DeleteItem(item types.IItem) error {
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storedItem, err := prov.GetItemPtr(item.GetId())
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if err != nil {
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return err
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}
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storedItem.deleted = true
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return nil
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}
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func (prov MemoryProvider) CreateUser(user types.IUser) (int, error) {
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return prov.index, nil
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}
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