alazyreader/library
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it now displays books from the DB!

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This commit is contained in:
David 2021-07-06 21:40:12 -04:00
parent 3bff06aad7
commit 8c6c9325da
3 changed files with 224 additions and 27 deletions
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5
Makefile
View File

@ -11,9 +11,12 @@ endif
build: server manager
run: build
run-server: build
./server
run-manager: build
./manager
server: $(GOFILES) $(STATICFILES)
go build -o server ./cmd/serve

139
cmd/manage/main.go
View File

@ -1,26 +1,113 @@
package main
import (
"context"
"fmt"
"log"
"os"
"sync"
"git.yetaga.in/alazyreader/library/book"
"git.yetaga.in/alazyreader/library/config"
"git.yetaga.in/alazyreader/library/database"
"git.yetaga.in/alazyreader/library/ui"
"github.com/gdamore/tcell"
"github.com/kelseyhightower/envconfig"
)
// State holds the UI state keys=>value map and manages access to the map with a mutex
type State struct {
m sync.Mutex
stateMap map[string]interface{}
}
// key, present
func (s *State) Get(key string) interface{} {
s.m.Lock()
defer s.m.Unlock()
if s.stateMap == nil {
s.stateMap = make(map[string]interface{})
}
k, ok := s.stateMap[key]
if !ok {
return nil
}
return k
}
// key, value
func (s *State) Set(key string, value interface{}) {
s.m.Lock()
defer s.m.Unlock()
if s.stateMap == nil {
s.stateMap = make(map[string]interface{})
}
s.stateMap[key] = value
}
const (
IN_MENU = iota
IN_BOOK
)
type EventBookUpdate struct {
tcell.EventTime
book *book.Book
}
func NewEventBookUpdate(b *book.Book) *EventBookUpdate {
e := &EventBookUpdate{book: b}
e.SetEventNow()
return e
}
func (e *EventBookUpdate) Book() *book.Book {
return e.book
}
type EventLoadBook struct {
tcell.EventTime
ID int
}
func NewEventLoadBook(id int) *EventLoadBook {
e := &EventLoadBook{ID: id}
e.SetEventNow()
return e
}
func main() {
var c config.Config
err := envconfig.Process("library", &c)
if err != nil {
log.Fatalln(err)
}
// create state
state := State{}
// set up DB connection
if c.DBUser == "" || c.DBPass == "" || c.DBHost == "" || c.DBPort == "" || c.DBName == "" {
log.Fatalf("vars: %+v", c)
}
lib, err := database.NewMySQLConnection(c.DBUser, c.DBPass, c.DBHost, c.DBPort, c.DBName)
if err != nil {
log.Fatalln(err)
}
err = lib.PrepareDatabase(context.Background())
if err != nil {
log.Fatalln(err)
}
_, _, err = lib.RunMigrations(context.Background())
if err != nil {
log.Fatalln(err)
}
books, err := lib.GetAllBooks(context.Background())
if err != nil {
log.Fatalln(err)
}
state.Set("library", books)
screen, err := tcell.NewScreen()
if err != nil {
log.Fatalln(err)
@ -30,21 +117,23 @@ func main() {
log.Fatalln(err)
}
l := ui.NewList([]string{"foo", "bar", "baz"}, 0)
l := ui.NewList(Titles(state.Get("library").([]book.Book)), 0)
menu := ui.NewBox(
"library",
[]string{"(q)uit"},
[]string{"(n)ew", "(i)mport", "(q)uit"},
ui.Contents{{
Offsets: ui.Offsets{Top: 1, Left: 2, Bottom: -2, Right: -2},
Container: l,
}},
)
book := ui.NewBookDetails()
book := ui.NewBookDetails(&book.Book{
Title: "test title",
})
activeBook := ui.NewBox(
"book",
[]string{"test"},
nil,
ui.Contents{{
Offsets: ui.Offsets{Top: 1, Left: 2, Bottom: -2, Right: -2},
Offsets: ui.Offsets{Top: 1, Left: 2, Bottom: 0, Right: 0},
Container: book,
}},
)
@ -64,16 +153,19 @@ func main() {
container.Draw(screen)
screen.Sync()
state := IN_MENU
// init UI state
state.Set("ui_state", IN_MENU)
// UI loop
for {
e := screen.PollEvent()
switch v := e.(type) {
case *tcell.EventError:
fmt.Fprintf(os.Stderr, "%v", v)
screen.Beep()
case *tcell.EventKey: // input handling
if state == IN_MENU {
curr := state.Get("ui_state").(int)
if curr == IN_MENU {
if v.Key() == tcell.KeyUp && l.Selected() > 0 {
l.SetSelected(l.Selected() - 1)
}
@ -86,11 +178,12 @@ func main() {
return
}
if v.Key() == tcell.KeyRight {
state = IN_BOOK
screen.PostEvent(NewEventLoadBook(l.SelectedID()))
state.Set("ui_state", IN_BOOK)
}
} else if state == IN_BOOK {
} else if curr == IN_BOOK {
if v.Key() == tcell.KeyLeft {
state = IN_MENU
state.Set("ui_state", IN_MENU)
}
}
screen.Clear()
@ -100,6 +193,12 @@ func main() {
container.SetSize(0, 0, h, w)
screen.Clear()
container.Draw(screen)
case *EventBookUpdate:
// TK
case *EventLoadBook:
book.SetBook(GetBookByID(v.ID, books))
screen.Clear()
container.Draw(screen)
case *tcell.EventInterrupt:
case *tcell.EventMouse:
case *tcell.EventTime:
@ -108,3 +207,23 @@ func main() {
screen.Show() // repaint
}
}
func Titles(lb []book.Book) []ui.ListKeyValue {
r := []ui.ListKeyValue{}
for i := range lb {
r = append(r, ui.ListKeyValue{
Key: lb[i].ID,
Value: lb[i].Title,
})
}
return r
}
func GetBookByID(id int, lb []book.Book) *book.Book {
for i := range lb {
if lb[i].ID == id {
return &lb[i]
}
}
return &book.Book{}
}

105
ui/ui.go
View File

@ -1,6 +1,7 @@
package ui
import (
"strconv"
"strings"
"git.yetaga.in/alazyreader/library/book"
@ -230,10 +231,15 @@ type List struct {
x, y int
h, w int
selected int
listItems []string
listItems []ListKeyValue
}
func NewList(listItems []string, initialSelected int) *List {
type ListKeyValue struct {
Key int
Value string
}
func NewList(listItems []ListKeyValue, initialSelected int) *List {
return &List{
listItems: listItems,
selected: initialSelected,
@ -246,11 +252,11 @@ func (l *List) SetSize(x, y, h, w int) {
func (l *List) Draw(s tcell.Screen) {
for i := range l.listItems {
for j, r := range l.listItems[i] {
for j, r := range l.listItems[i].Value {
s.SetContent(l.x+j, l.y+i, r, nil, tcell.StyleDefault)
}
if i == l.selected {
s.SetContent(l.x+len(l.listItems[i])+1, l.y+i, '<', nil, tcell.StyleDefault)
s.SetContent(l.x+len(l.listItems[i].Value)+1, l.y+i, '<', nil, tcell.StyleDefault)
}
}
}
@ -259,24 +265,33 @@ func (l *List) Selected() int {
return l.selected
}
func (l *List) SelectedID() int {
return l.listItems[l.selected].Key
}
func (l *List) SetSelected(i int) {
l.selected = i
}
func (l *List) ListMembers() []string {
func (l *List) ListMembers() []ListKeyValue {
return l.listItems
}
// A List is a scrollable, pageable list with a selector token.
// BookDetails displays an editable list of book details
type BookDetails struct {
x, y int
h, w int
selected int
book book.Book
book *book.Book
}
func NewBookDetails() *BookDetails {
return &BookDetails{}
func NewBookDetails(b *book.Book) *BookDetails {
return &BookDetails{
book: b,
}
}
func (l *BookDetails) SetBook(b *book.Book) {
l.book = b
}
func (l *BookDetails) SetSize(x, y, h, w int) {
@ -284,12 +299,36 @@ func (l *BookDetails) SetSize(x, y, h, w int) {
}
func (l *BookDetails) Draw(s tcell.Screen) {
items := []string{"title", "authors", "isbn-10", "isbn-13"}
for i := range items {
for j, r := range items[i] {
s.SetContent(l.x+j, l.y+i, r, nil, tcell.StyleDefault)
if l.book == nil {
return
}
items := []struct {
label string
value string
}{
{"Title", l.book.Title},
{"Authors", strings.Join(l.book.Authors, ", ")},
{"Sort Author", l.book.SortAuthor},
{"ISBN-10", l.book.ISBN10},
{"ISBN-13", l.book.ISBN13},
{"Format", l.book.Format},
{"Genre", l.book.Genre},
{"Publisher", l.book.Publisher},
{"Series", l.book.Series},
{"Volume", l.book.Volume},
{"Year", l.book.Year},
{"Signed", strconv.FormatBool(l.book.Signed)},
{"On Loan", l.book.OnLoan},
{"Cover URL", l.book.CoverURL},
{"Notes", l.book.Notes},
{"Description", l.book.Description},
}
for i := range items {
if i < l.h-2 {
kv := NewKeyValue(items[i].label, ": ", items[i].value)
kv.SetSize(l.x, l.y+i, 0, 0)
kv.Draw(s)
}
s.SetContent(l.x+len(items[i]), l.y+i, ':', nil, tcell.StyleDefault)
}
}
@ -322,3 +361,39 @@ func (p *PaddedText) Draw(s tcell.Screen) {
}
s.SetContent(t, p.y, ' ', nil, tcell.StyleDefault)
}
type KeyValue struct {
x, y int
h, w int
key string
value string
separator string
}
func NewKeyValue(key, separator, value string) *KeyValue {
return &KeyValue{
key: key,
separator: separator,
value: value,
}
}
func (p *KeyValue) SetSize(x, y, _, _ int) {
p.x, p.y, p.h, p.w = x, y, 1, len(p.key)+len(p.separator)+len(p.value)
}
func (p *KeyValue) Draw(s tcell.Screen) {
for j, r := range p.key {
s.SetContent(p.x+j, p.y, r, nil, tcell.StyleDefault)
}
for j, r := range p.separator {
s.SetContent(p.x+len(p.key)+j, p.y, r, nil, tcell.StyleDefault)
}
for j, r := range p.value {
s.SetContent(p.x+len(p.key)+len(p.separator)+j, p.y, r, nil, tcell.StyleDefault)
}
}
func (p *KeyValue) GetValue() string {
return p.value
}