add: reimplement discord bot

1 files changed, 224 insertions, 0 deletions

diff --git a/internal/setup/setup.go b/internal/setup/setup.go
new file mode 100644
index 0000000..eafaaa0
--- /dev/null
+++ b/internal/setup/setup.go
@@ -0,0 +1,224 @@
+package setup
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/charmbracelet/huh"
+	"github.com/charmbracelet/lipgloss"
+
+	"github.com/hachem-wtf/benson/internal/config"
+)
+
+// Run is the server-manager wizard. It configures Minecraft/Fabric versions,
+// paths, merge hooks and mods — everything except the Discord bot.
+func Run() error {
+	cfg := loadConfig()
+
+	var (
+		mcVersion    = cfg.MinecraftVersion
+		fabricLoader = cfg.FabricLoaderVersion
+		loaderMeta   = cfg.LoaderMetaVersion
+		javaPath     = cfg.JavaPath
+		serverLoc    = cfg.ServerLocation
+		backupLoc    = cfg.BackupLocation
+		preCmd       = cfg.MergePreCommand
+		postCmd      = cfg.MergePostCommand
+		modsText     = strings.Join(cfg.ModrinthMods, "\n")
+		confirm      = true
+	)
+
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewNote().
+				Title("Benson setup").
+				Description("Configure the server manager.\nThe Discord bot is optional — run `benson setup bot` for that."),
+		),
+		huh.NewGroup(
+			huh.NewInput().Title("Minecraft version").Placeholder("1.21.10").Value(&mcVersion).Validate(required("Minecraft version")),
+			huh.NewInput().Title("Fabric loader version").Placeholder("0.17.3").Value(&fabricLoader).Validate(required("Fabric loader version")),
+			huh.NewInput().Title("Loader / installer version").Placeholder("1.1.0").Value(&loaderMeta).Validate(required("loader version")),
+			huh.NewInput().Title("Java path").Description("Leave blank to use 'java' from PATH").Value(&javaPath),
+		).Title("Minecraft / Fabric"),
+		huh.NewGroup(
+			huh.NewInput().Title("Server location").Description("Live server directory, merged into by 'merge'").Value(&serverLoc),
+			huh.NewInput().Title("Backup location").Description("Where server backups are written").Value(&backupLoc),
+			huh.NewInput().Title("Pre-merge command").Description("Optional shell command run before merging").Value(&preCmd),
+			huh.NewInput().Title("Post-merge command").Description("Optional shell command run after merging").Value(&postCmd),
+		).Title("Paths & hooks (optional)"),
+		huh.NewGroup(
+			huh.NewText().Title("Modrinth mods").Description("One mod slug per line").Lines(8).Value(&modsText),
+		).Title("Mods"),
+		huh.NewGroup(
+			huh.NewConfirm().Title("Write config/config.json?").Affirmative("Write").Negative("Cancel").Value(&confirm),
+		),
+	)
+
+	if done, err := runForm(form); err != nil || !done {
+		return err
+	}
+
+	cfg.MinecraftVersion = strings.TrimSpace(mcVersion)
+	cfg.FabricLoaderVersion = strings.TrimSpace(fabricLoader)
+	cfg.LoaderMetaVersion = strings.TrimSpace(loaderMeta)
+	cfg.JavaPath = strings.TrimSpace(javaPath)
+	cfg.ServerLocation = strings.TrimSpace(serverLoc)
+	cfg.BackupLocation = strings.TrimSpace(backupLoc)
+	cfg.MergePreCommand = strings.TrimSpace(preCmd)
+	cfg.MergePostCommand = strings.TrimSpace(postCmd)
+	cfg.ModrinthMods = parseMods(modsText)
+
+	if err := writeConfigFile(cfg); err != nil {
+		return err
+	}
+
+	fmt.Printf("\n  %s Wrote %s\n\n  Run `benson` for the CLI, or `benson setup bot` to set up the Discord bot.\n\n",
+		check(), config.Path())
+	return nil
+}
+
+// RunBot is the Discord-bot wizard. It configures the bot token, channel and
+// check interval, leaving the server-manager settings untouched.
+func RunBot() error {
+	cfg := loadConfig()
+	api := loadAPI()
+
+	interval := cfg.CheckIntervalMinutes
+	if interval <= 0 {
+		interval = 60
+	}
+
+	var (
+		token       = api.Token
+		channelID   = cfg.ChannelID
+		intervalStr = strconv.Itoa(interval)
+		confirm     = true
+	)
+
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewNote().
+				Title("Benson bot setup").
+				Description("Configure the Discord bot that posts Modrinth compatibility reports."),
+		),
+		huh.NewGroup(
+			huh.NewInput().Title("Discord bot token").Description("Developer Portal → Bot → Reset/Copy Token").Password(true).Value(&token).Validate(required("token")),
+			huh.NewInput().Title("Channel ID").Description("Channel where reports are posted").Value(&channelID).Validate(required("channel ID")),
+			huh.NewInput().Title("Check interval (minutes)").Value(&intervalStr).Validate(positiveInt),
+		).Title("Discord"),
+		huh.NewGroup(
+			huh.NewConfirm().Title("Write config/config.json and config/api.json?").Affirmative("Write").Negative("Cancel").Value(&confirm),
+		),
+	)
+
+	if done, err := runForm(form); err != nil || !done {
+		return err
+	}
+
+	minutes, _ := strconv.Atoi(strings.TrimSpace(intervalStr))
+	cfg.ChannelID = strings.TrimSpace(channelID)
+	cfg.CheckIntervalMinutes = minutes
+	api.Token = strings.TrimSpace(token)
+
+	if err := writeConfigFile(cfg); err != nil {
+		return err
+	}
+	if err := writeAPIFile(api); err != nil {
+		return err
+	}
+
+	fmt.Printf("\n  %s Wrote %s\n  %s Wrote %s\n\n  Run `benson bot` to start the bot.\n\n",
+		check(), config.Path(), check(), config.APIPath())
+	return nil
+}
+
+func loadConfig() *config.Config {
+	if cfg, err := config.Load(); err == nil {
+		return cfg
+	}
+	return &config.Config{}
+}
+
+func loadAPI() *config.API {
+	if api, err := config.LoadAPI(); err == nil {
+		return api
+	}
+	return &config.API{}
+}
+
+// runForm runs a themed form, reporting whether the user confirmed the write.
+func runForm(form *huh.Form) (bool, error) {
+	if err := form.WithTheme(emberTheme()).Run(); err != nil {
+		if errors.Is(err, huh.ErrUserAborted) {
+			fmt.Println("Setup cancelled.")
+			return false, nil
+		}
+		return false, err
+	}
+	return true, nil
+}
+
+func required(label string) func(string) error {
+	return func(s string) error {
+		if strings.TrimSpace(s) == "" {
+			return fmt.Errorf("%s is required", label)
+		}
+		return nil
+	}
+}
+
+func positiveInt(s string) error {
+	n, err := strconv.Atoi(strings.TrimSpace(s))
+	if err != nil || n <= 0 {
+		return errors.New("must be a positive number")
+	}
+	return nil
+}
+
+func parseMods(text string) []string {
+	mods := []string{}
+	for _, line := range strings.Split(text, "\n") {
+		if slug := strings.TrimSpace(line); slug != "" {
+			mods = append(mods, slug)
+		}
+	}
+	return mods
+}
+
+func check() string {
+	return lipgloss.NewStyle().Foreground(lipgloss.Color("#22C55E")).Render("✓")
+}
+
+func emberTheme() *huh.Theme {
+	theme := huh.ThemeCharm()
+	ember := lipgloss.Color("#F97316")
+	theme.Focused.Title = theme.Focused.Title.Foreground(ember).Bold(true)
+	theme.Focused.Base = theme.Focused.Base.BorderForeground(ember)
+	return theme
+}
+
+func writeConfigFile(cfg *config.Config) error {
+	if err := os.MkdirAll(config.Dir, 0o755); err != nil {
+		return err
+	}
+	data, err := json.MarshalIndent(cfg, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(config.Path(), append(data, '\n'), 0o644)
+}
+
+func writeAPIFile(api *config.API) error {
+	if err := os.MkdirAll(config.Dir, 0o755); err != nil {
+		return err
+	}
+	data, err := json.MarshalIndent(api, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(config.APIPath(), append(data, '\n'), 0o600)
+}