chatpb/book.sort.pb.go

// Code generated by go.wit.com/apps/autogenpb DO NOT EDIT.
// This file was autogenerated with autogenpb v0.0.79 2025-09-01_01:52:08_UTC
//     go install go.wit.com/apps/autogenpb@latest
//
// define which structs (messages) you want to use in the .proto file
// Then sort.pb.go and marshal.pb.go files are autogenerated
//
// autogenpb uses it and has an example .proto file with instructions
//

package chatpb

import (
	"fmt"
	"iter"
	"sort"
	"sync"

	"google.golang.org/protobuf/proto"
)

// a simple global lock
var bookMu sync.RWMutex

func (x *Books) fixUuid() {
	if x == nil {
		return
	}
	if x.Uuid == "8b6409ad-4498-43a6-b09a-7835c00dcb9a" {
		return
	}
	x.Uuid = "8b6409ad-4498-43a6-b09a-7835c00dcb9a"
	x.Version = "v0.0.1 go.wit.com/lib/protobuf/chatpb"
}

func NewBooks() *Books {
	x := new(Books)
	x.Uuid = "8b6409ad-4498-43a6-b09a-7835c00dcb9a"
	x.Version = "v0.0.1 go.wit.com/lib/protobuf/chatpb"
	return x
}

// START SORT

// DEFINE THE Books SCANNER.
// itializes a new scanner.
func newBooksScanner(things []*Books) *BooksScanner {
	return &BooksScanner{things: things}
}

type BooksScanner struct {
	sync.Mutex

	things []*Books
	index  int
}

func (it *BooksScanner) Scan() bool {
	if it.index >= len(it.things) {
		return false
	}
	it.Lock()
	it.index++
	it.Unlock()
	return true
}

// Next() returns the next thing in the array
func (it *BooksScanner) Next() *Books {
	if it.things[it.index-1] == nil {
		fmt.Println("Next() error in BooksScanner", it.index)
	}
	return it.things[it.index-1]
}

// END DEFINE THE SCANNER

// DEFINE THE Book SCANNER.
// itializes a new scanner.
func newBookScanner(things []*Book) *BookScanner {
	return &BookScanner{things: things}
}

type BookScanner struct {
	sync.Mutex

	things []*Book
	index  int
}

func (it *BookScanner) Scan() bool {
	if it.index >= len(it.things) {
		return false
	}
	it.Lock()
	it.index++
	it.Unlock()
	return true
}

// Next() returns the next thing in the array
func (it *BookScanner) Next() *Book {
	if it.things[it.index-1] == nil {
		fmt.Println("Next() error in BookScanner", it.index)
	}
	return it.things[it.index-1]
}

// END DEFINE THE SCANNER

// sort struct by Uuid
type sortBookUuid []*Book

func (a sortBookUuid) Len() int           { return len(a) }
func (a sortBookUuid) Less(i, j int) bool { return a[i].Uuid < a[j].Uuid }
func (a sortBookUuid) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }

// safely returns a slice of pointers to the FRUIT protobufs
func (x *Books) allBooks() []*Book {
	x.RLock()
	defer x.RUnlock()

	// Create a new slice to hold pointers to each FRUIT
	var tmp []*Book
	tmp = make([]*Book, len(x.Books))
	for i, p := range x.Books {
		tmp[i] = p // Copy pointers for safe iteration
	}

	return tmp
}

// safely returns a slice of pointers to the Book protobufs
func (x *Books) selectAllBooks() []*Book {
	x.RLock()
	defer x.RUnlock()

	// Create a new slice to hold pointers to each Book
	var tmp []*Book
	tmp = make([]*Book, len(x.Books))
	for i, p := range x.Books {
		tmp[i] = p // Copy pointers for safe iteration
	}

	return tmp
}
func (x *Books) SortByUuid() *BookScanner {
	// copy the pointers as fast as possible.
	things := x.selectAllBooks()

	// todo: try slices.SortFunc() instead to see what happens
	sort.Sort(sortBookUuid(things))
	//    slices.SortFunc(things, func(a, b *Books) bool {
	//        return a.Uuid < b.Uuid // Sort by ??. let the compiler work it out??
	//    })
	return newBookScanner(things)
}

// 'for x := range' syntax using the awesome golang 1.24 'iter'
func (x *Books) IterByUuid() iter.Seq[*Book] {
	items := x.selectAllBooks()
	sort.Sort(sortBookUuid(items))
	// log.Println("Made Iter.Seq[] with length", len(items))
	return func(yield func(*Book) bool) {
		for _, v := range items {
			if !yield(v) {
				return
			}
		}
	}
}

// END SORT

func (x *Books) Len() int {
	x.RLock()
	defer x.RUnlock()

	return len(x.Books)
}

// a Append() shortcut (that does Clone() with a mutex) notsure if it really works
func (x *Books) Append(y *Book) {
	x.Lock()
	defer x.Unlock()

	x.Books = append(x.Books, proto.Clone(y).(*Book))
}

func (x *Books) All() *BookScanner {
	BookPointers := x.selectAllBooks()

	scanner := newBookScanner(BookPointers)
	return scanner
}

// Iterate 'for x := range' syntax using the awesome golang 1.24 'iter'
func (x *Books) IterAll() iter.Seq[*Book] {
	items := x.selectAllBooks()
	// log.Println("Made All() Iter.Seq[] with length", len(items))
	return func(yield func(*Book) bool) {
		for _, v := range items {
			if !yield(v) {
				return
			}
		}
	}
}
func (x *Books) Delete(y *Book) bool {
	x.Lock()
	defer x.Unlock()

	for i, _ := range x.Books {
		if x.Books[i] == y {
			x.Books[i] = x.Books[len(x.Books)-1]
			x.Books = x.Books[:len(x.Books)-1]
			return true
		}
	}
	return false
}

// lookup a Books by the  Uuid
func (x *Books) FindByUuid(s string) *Book {
	if x == nil {
		return nil
	}

	x.RLock()
	defer x.RUnlock()

	for i, _ := range x.Books {
		if x.Books[i].Uuid == s {
			return x.Books[i]
		}
	}
	return nil
}

// returns a Book if Uuid matches, otherwise create
func (x *Books) InsertByUuid(y string) *Book {
	x.Lock()
	defer x.Unlock()

	for _, z := range x.Books {
		if z.Uuid == y {
			return z
		}
	}

	z := new(Book)
	z.Uuid = y
	x.Books = append(x.Books, z)
	return z
}

func (x *Books) DeleteByUuid(s string) bool {
	x.Lock()
	defer x.Unlock()

	for i, _ := range x.Books {
		if x.Books[i].Uuid == s {
			x.Books[i] = x.Books[len(x.Books)-1]
			x.Books = x.Books[:len(x.Books)-1]
			return true
		}
	}
	return false
}

func (x *Books) AppendByUuid(y *Book) bool {
	x.Lock()
	defer x.Unlock()

	for _, p := range x.Books {
		if p.Uuid == y.Uuid {
			return false
		}
	}

	x.Books = append(x.Books, proto.Clone(y).(*Book))
	return true
}