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// Command lectio-ui is lectio's interactive Bubble Tea reader.
package main
import (
"flag"
"fmt"
"io"
"os"
"regexp"
tea "github.com/charmbracelet/bubbletea"
"github.com/lukaszkasprzak/lectio/internal/bible"
"github.com/lukaszkasprzak/lectio/internal/bookmarks"
"github.com/lukaszkasprzak/lectio/internal/caldata"
"github.com/lukaszkasprzak/lectio/internal/config"
"github.com/lukaszkasprzak/lectio/internal/i18n"
"github.com/lukaszkasprzak/lectio/internal/naming"
"github.com/lukaszkasprzak/lectio/internal/tui"
)
const helpText = `lectio-ui — interactive offline daily-readings reader (OF + EF)
Usage:
lectio-ui [DATE] [flags] DATE = YYYY-MM-DD (default: today), any position
Flags:
-b, --bible VER start on version (vul built in; see Versions below)
-R, --reader open the Bible reader (book picker) instead of the daily view
-a, --all show all parts (override config)
-l, --lectionary WHICH new|trad (trad -> traditional)
-v, --version print the version and exit
-h, --help this help
Versions: vul (Latin Vulgate) is built in. wuj (Wujek), grb (Greek) and drb
(Douay-Rheims) are optional: build with 'make build-full', or drop <code>.tsv +
<code>.ini into ~/.config/lectio/corpora/. ui_language accepts any code (day and
saint names from ~/.config/lectio/names/<code>.ini, labels from ui/<code>.ini).
Flags override config. Exit codes: 0 ok, 1 runtime error, 2 usage error.
`
var dateRe = regexp.MustCompile(`^\d{4}-\d{2}-\d{2}$`)
func main() {
os.Exit(run(os.Args[1:], os.Stdout, os.Stderr))
}
// run is lectio-ui's testable entry point: parse args, validate, load
// config, apply overrides, and launch the TUI. Returns a process exit code.
func run(args []string, stdout, stderr io.Writer) int {
if wantsHelp(args) {
fmt.Fprint(stdout, helpText)
return 0
}
if wantsVersion(args) {
fmt.Fprintln(stdout, "lectio-ui "+config.Version)
return 0
}
date, rest, err := extractDate(args)
if err != nil {
fmt.Fprintln(stderr, "lectio-ui:", err)
return 2
}
cfg, err := config.Load()
if err != nil {
fmt.Fprintln(stderr, "lectio-ui:", err)
return 1
}
if dir, err := config.CorporaDir(); err == nil {
bible.SetUserCorporaDir(dir)
}
if dir, err := config.NamesDir(); err == nil {
naming.SetUserDir(dir)
}
if dir, err := config.UIDir(); err == nil {
i18n.SetUserDir(dir)
}
if dir, err := config.SanctoraleDir(); err == nil {
caldata.SetSanctoraleDir(dir)
}
var all, offline, reader bool
var bibleVer, lectionary string
fs := flag.NewFlagSet("lectio-ui", flag.ContinueOnError)
fs.SetOutput(stderr)
fs.Usage = func() { fmt.Fprint(stderr, helpText) }
fs.StringVar(&bibleVer, "b", "", "start on version: wuj,vul,grb,drb")
fs.StringVar(&bibleVer, "bible", "", "start on version: wuj,vul,grb,drb")
fs.BoolVar(&reader, "R", false, "open the Bible reader (fuzzy book picker) instead of the daily view")
fs.BoolVar(&reader, "reader", false, "open the Bible reader (fuzzy book picker) instead of the daily view")
fs.BoolVar(&all, "a", cfg.All, "show all parts (override config)")
fs.BoolVar(&all, "all", cfg.All, "show all parts (override config)")
fs.BoolVar(&offline, "o", cfg.Offline, "cache/sigla only, no network")
fs.BoolVar(&offline, "offline", cfg.Offline, "cache/sigla only, no network")
fs.StringVar(&lectionary, "l", "", "new|trad")
fs.StringVar(&lectionary, "lectionary", "", "new|trad")
if err := fs.Parse(rest); err != nil {
return 2
}
if fs.NArg() > 0 {
fmt.Fprintf(stderr, "lectio-ui: unexpected argument %q; see 'lectio-ui -h'\n", fs.Arg(0))
return 2
}
lectionary, err = normalizeLectionary(lectionary)
if err != nil {
fmt.Fprintln(stderr, "lectio-ui:", err)
return 2
}
if bibleVer != "" && !config.ValidVersion(bibleVer) {
fmt.Fprintf(stderr, "lectio-ui: unknown version %q (want one of wuj, vul, grb, drb)\n", bibleVer)
return 2
}
cfg.All = all
cfg.Offline = offline
if lectionary != "" {
cfg.Lectionary = lectionary
}
var mdl tea.Model = tui.New(cfg, date, bibleVer)
if reader {
tbl, _ := bible.LoadBookTable(config.UserBooksINI())
mdl = tui.NewReader(cfg, tbl, bookmarks.Open())
}
if _, err := tea.NewProgram(mdl, tea.WithAltScreen()).Run(); err != nil {
fmt.Fprintln(stderr, err)
return 1
}
return 0
}
// wantsHelp reports whether -h/--help appears anywhere in args.
func wantsHelp(args []string) bool {
for _, a := range args {
if a == "-h" || a == "--help" {
return true
}
}
return false
}
// wantsVersion reports whether -v/--version appears anywhere in args.
func wantsVersion(args []string) bool {
for _, a := range args {
if a == "-v" || a == "--version" {
return true
}
}
return false
}
// extractDate pulls the single positional DATE token (YYYY-MM-DD, matching
// dateRe) out of args, wherever it appears, and returns it along with the
// remaining tokens for flag.FlagSet to parse. Defaults to "" (New's
// today-fallback) when no date token is present; errors if more than one is
// found.
func extractDate(args []string) (date string, rest []string, err error) {
found := false
for _, a := range args {
if dateRe.MatchString(a) {
if found {
return "", nil, fmt.Errorf("multiple dates given (%q and %q)", date, a)
}
date = a
found = true
continue
}
rest = append(rest, a)
}
return date, rest, nil
}
// normalizeLectionary maps -l/--lectionary's accepted spellings via
// config.NormalizeLectionary; "" (flag not given) passes through unchanged.
func normalizeLectionary(lectionary string) (string, error) {
if lectionary == "" {
return "", nil
}
v, ok := config.NormalizeLectionary(lectionary)
if !ok {
return "", fmt.Errorf("invalid --lectionary %q (want new|trad)", lectionary)
}
return v, nil
}
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