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671 lines
20 KiB
671 lines
20 KiB
package main
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import (
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"context"
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"database/sql"
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"errors"
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"flag"
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"fmt"
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"net/http"
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"os"
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"os/signal"
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"sort"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/bwmarrin/discordgo"
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_ "github.com/mattn/go-sqlite3"
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"github.com/rs/zerolog/log"
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"go.wperron.io/themis"
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)
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const (
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CONN_STRING_PATTERN = "file:%s?cache=shared&mode=rw&_journal_mode=WAL"
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)
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var (
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dbFile = flag.String("db", "", "SQlite database file path")
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store *themis.Store
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)
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type Handler func(s *discordgo.Session, i *discordgo.InteractionCreate)
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func main() {
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ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGTERM, syscall.SIGKILL, syscall.SIGINT)
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defer cancel()
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flag.Parse()
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err := touchDbFile(*dbFile)
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if err != nil {
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log.Fatal().Err(err).Msg("failed to touch database file")
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}
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connString := fmt.Sprintf(CONN_STRING_PATTERN, *dbFile)
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store, err = themis.NewStore(connString)
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if err != nil {
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log.Fatal().Err(err).Msg("failed to initialize database")
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}
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defer store.Close()
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authToken, ok := os.LookupEnv("DISCORD_TOKEN")
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if !ok {
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log.Fatal().Err(err).Msg("no auth token found at DISCORD_TOKEN env var")
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}
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appId, ok := os.LookupEnv("DISCORD_APP_ID")
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if !ok {
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log.Fatal().Err(err).Msg("no app id found at DISCORD_APP_ID env var")
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}
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guildId, ok := os.LookupEnv("DISCORD_GUILD_ID")
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if !ok {
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log.Fatal().Err(err).Msg("no guild id found at DISCORD_GUILD_ID env var")
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}
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discord, err := discordgo.New(fmt.Sprintf("Bot %s", authToken))
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if err != nil {
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log.Fatal().Err(err).Msg("failed to initialize discord session")
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}
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log.Info().Str("app_id", appId).Str("guild_id", guildId).Msg("connected to discord")
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commands := []*discordgo.ApplicationCommand{
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// Server info commands
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{
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Name: "info",
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Description: "Server Information",
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Type: discordgo.ChatApplicationCommand,
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},
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// EU4 claims commands
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{
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Name: "list-claims",
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Description: "List current claims",
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Type: discordgo.ChatApplicationCommand,
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},
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{
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Name: "claim",
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Description: "Take a claim on provinces",
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Type: discordgo.ChatApplicationCommand,
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Options: []*discordgo.ApplicationCommandOption{
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{
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Name: "claim-type",
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Description: "one of `area`, `region` or `trade`",
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Type: discordgo.ApplicationCommandOptionString,
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Choices: []*discordgo.ApplicationCommandOptionChoice{
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{Name: "Area", Value: themis.CLAIM_TYPE_AREA},
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{Name: "Region", Value: themis.CLAIM_TYPE_REGION},
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{Name: "Trade Node", Value: themis.CLAIM_TYPE_TRADE},
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},
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},
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{
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Name: "name",
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Description: "the name of zone claimed",
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Type: discordgo.ApplicationCommandOptionString,
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Autocomplete: true,
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},
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},
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},
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{
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Name: "describe-claim",
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Description: "Get details on a claim",
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Type: discordgo.ChatApplicationCommand,
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Options: []*discordgo.ApplicationCommandOption{
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{
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Name: "id",
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Description: "Numerical ID for the claim",
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Type: discordgo.ApplicationCommandOptionInteger,
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},
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},
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},
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{
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Name: "delete-claim",
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Description: "Release one of your claims",
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Type: discordgo.ChatApplicationCommand,
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Options: []*discordgo.ApplicationCommandOption{
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{
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Name: "id",
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Description: "numerical ID for the claim",
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Type: discordgo.ApplicationCommandOptionInteger,
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},
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},
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},
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{
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Name: "flush",
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Description: "Remove all claims from the database and prepare for the next game!",
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Type: discordgo.ChatApplicationCommand,
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},
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{
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Name: "query",
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Description: "Run a raw SQL query on the database",
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Type: discordgo.ChatApplicationCommand,
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Options: []*discordgo.ApplicationCommandOption{
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{
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Name: "query",
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Description: "Raw SQL query",
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Type: discordgo.ApplicationCommandOptionString,
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},
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},
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},
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{
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Name: "schedule",
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Description: "Get the schedule for the following weeks.",
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Type: discordgo.ChatApplicationCommand,
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},
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}
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handlers := map[string]Handler{
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"info": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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uptime, err := themis.Uptime()
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if err != nil {
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log.Error().Err(err).Msg("failed to get server uptime")
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err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "Oops, something went wrong! :(",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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claimCount, uniquePlayers, err := store.CountClaims(ctx)
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if err != nil {
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log.Error().Err(err).Msg("failed to count claims")
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err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "Oops, something went wrong! :(",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: fmt.Sprintf("Server has been up for %s, has %d claims from %d unique players", uptime, claimCount, uniquePlayers),
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"list-claims": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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claims, err := store.ListClaims(ctx)
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if err != nil {
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log.Error().Err(err).Msg("failed to list claims")
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err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "Oops, something went wrong! :(",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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sb := strings.Builder{}
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sb.WriteString(fmt.Sprintf("There are currently %d claims:\n", len(claims)))
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sb.WriteString("```\n")
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sb.WriteString(formatClaimsTable(claims))
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sb.WriteString("```\n")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: sb.String(),
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"claim": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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if i.Type == discordgo.InteractionApplicationCommandAutocomplete {
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handleClaimAutocomplete(ctx, store, s, i)
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return
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}
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opts := i.ApplicationCommandData().Options
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if len(opts) != 2 {
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "`claim-type` and `name` are mandatory parameters",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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return
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}
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claimType, err := themis.ClaimTypeFromString(opts[0].StringValue())
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if err != nil {
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log.Error().Err(err).Str("claim_type", opts[0].StringValue()).Msg("failed to parse claim")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "You can only take claims of types `area`, `region` or `trade`",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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return
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}
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name := opts[1].StringValue()
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player := i.Member.Nick
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if player == "" {
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player = i.Member.User.Username
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}
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userId := i.Member.User.ID
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_, err = store.Claim(ctx, userId, player, name, claimType)
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if err != nil {
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conflict, ok := err.(themis.ErrConflict)
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if ok {
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sb := strings.Builder{}
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sb.WriteString("Some provinces are already claimed:\n```\n")
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for _, c := range conflict.Conflicts {
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sb.WriteString(fmt.Sprintf(" - %s\n", c))
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}
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sb.WriteString("```\n")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: sb.String(),
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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return
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}
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log.Error().Err(err).Msg("failed to acquire claim")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "failed to acquire claim :(",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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return
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}
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: fmt.Sprintf("Claimed %s for %s!", name, player),
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"describe-claim": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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id := i.ApplicationCommandData().Options[0]
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detail, err := store.DescribeClaim(ctx, int(id.IntValue()))
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if err != nil {
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log.Error().Err(err).Msg("failed to describe claim")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "woops, something went wrong :(",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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sb := strings.Builder{}
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sb.WriteString(fmt.Sprintf("#%d %s %s (%s)\n", detail.ID, detail.Name, detail.Type, detail.Player))
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for _, p := range detail.Provinces {
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sb.WriteString(fmt.Sprintf(" - %s\n", p))
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}
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: sb.String(),
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"delete-claim": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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id := i.ApplicationCommandData().Options[0]
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userId := i.Member.User.ID
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err := store.DeleteClaim(ctx, int(id.IntValue()), userId)
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if err != nil {
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msg := "Oops, something went wrong :( blame @wperron"
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if errors.Is(err, themis.ErrNoSuchClaim) {
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msg = fmt.Sprintf("Claim #%d not found for %s", id.IntValue(), i.Member.Nick)
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}
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log.Error().Err(err).Msg("failed to delete claim")
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: msg,
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "Got it chief.",
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},
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})
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if err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"flush": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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if err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseModal,
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Data: &discordgo.InteractionResponseData{
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CustomID: "modals_flush_" + i.Interaction.Member.User.ID,
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Title: "Are you sure?",
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Components: []discordgo.MessageComponent{
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discordgo.ActionsRow{
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Components: []discordgo.MessageComponent{
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discordgo.TextInput{
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CustomID: "confirmation",
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Label: "Delete all claims permanently? [y/N]",
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Style: discordgo.TextInputShort,
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Placeholder: "",
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Value: "",
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Required: true,
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MinLength: 1,
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MaxLength: 45,
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},
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},
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},
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},
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},
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}); err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"query": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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roDB, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?cache=private&mode=ro", *dbFile))
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if err != nil {
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log.Error().Err(err).Msg("failed to open read-only copy of databse")
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}
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q := i.ApplicationCommandData().Options[0].StringValue()
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deadlined, cancelDeadline := context.WithTimeout(ctx, 15*time.Second)
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defer cancelDeadline()
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rows, err := roDB.QueryContext(deadlined, q)
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if err != nil {
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log.Error().Err(err).Msg("failed to exec user-provided query")
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return
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}
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fmtd, err := themis.FormatRows(rows)
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if err != nil {
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log.Error().Err(err).Msg("failed to format rows")
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}
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// 2000 is a magic number here, it's the character limit for a discord
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// message, we're cutting slightly under that to allow the backticks
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// for the monospaced block.
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table := fmt.Sprintf("```\n%s\n```", fmtd[:min(len(fmtd), 1990)])
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if err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: table,
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},
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}); err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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"schedule": func(s *discordgo.Session, i *discordgo.InteractionCreate) {
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// get schedule from now to 4 mondays into the future
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sched, err := store.GetSchedule(ctx, themis.NextMonday(), themis.NextMonday().Add(4*7*24*time.Hour))
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if err != nil {
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log.Error().Err(err).Msg("failed to get schedule")
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if err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: "failed to get schedule, check logs for more info.",
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},
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}); err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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}
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sb := strings.Builder{}
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keys := make([]string, 0, len(sched))
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for k := range sched {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for _, d := range keys {
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sb.WriteString(d + ": ")
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if len(sched[d]) == 0 {
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sb.WriteString("Everyone is available!\n")
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} else {
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sb.WriteString(strings.Join(sched[d], ", ") + " won't be able to make it")
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}
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}
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if err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
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Type: discordgo.InteractionResponseChannelMessageWithSource,
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Data: &discordgo.InteractionResponseData{
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Content: sb.String(),
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},
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}); err != nil {
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log.Error().Err(err).Msg("failed to respond to interaction")
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}
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},
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}
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registerHandlers(discord, handlers)
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err = discord.Open()
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if err != nil {
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log.Fatal().Err(err).Msg("failed to open discord websocket")
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}
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defer discord.Close()
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registeredCommands := make([]*discordgo.ApplicationCommand, len(commands))
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for i, c := range commands {
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command, err := discord.ApplicationCommandCreate(appId, guildId, c)
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if err != nil {
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log.Fatal().Err(err).Msg("failed to register command")
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}
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registeredCommands[i] = command
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}
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log.Info().Int("count", len(registeredCommands)).Msg("registered commands")
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|
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go func() {
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if err := serve(":8080"); err != nil {
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log.Error().Err(err).Msg("failed to serve requests")
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}
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cancel()
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}()
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|
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<-ctx.Done()
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|
log.Info().Msg("context cancelled, exiting")
|
|
|
|
for _, c := range registeredCommands {
|
|
err = discord.ApplicationCommandDelete(appId, guildId, c.ID)
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to deregister commands")
|
|
}
|
|
}
|
|
log.Info().Msg("deregistered commands, exiting")
|
|
os.Exit(0)
|
|
}
|
|
|
|
func touchDbFile(path string) error {
|
|
f, err := os.Open(path)
|
|
if err != nil {
|
|
if errors.Is(err, os.ErrNotExist) {
|
|
f, err := os.Create(path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
f.Close()
|
|
} else {
|
|
return err
|
|
}
|
|
}
|
|
f.Close()
|
|
|
|
return nil
|
|
}
|
|
|
|
func registerHandlers(sess *discordgo.Session, handlers map[string]Handler) {
|
|
sess.AddHandler(func(s *discordgo.Session, r *discordgo.Ready) {
|
|
log.Info().Str("user_id", fmt.Sprintf("%s#%s", s.State.User.Username, s.State.User.Discriminator)).Msg("logged in")
|
|
})
|
|
sess.AddHandler(func(s *discordgo.Session, i *discordgo.InteractionCreate) {
|
|
switch i.Type {
|
|
case discordgo.InteractionApplicationCommand:
|
|
if h, ok := handlers[i.ApplicationCommandData().Name]; ok {
|
|
h(s, i)
|
|
}
|
|
case discordgo.InteractionModalSubmit:
|
|
if strings.HasPrefix(i.ModalSubmitData().CustomID, "modals_flush_") {
|
|
sub := i.ModalSubmitData().Components[0].(*discordgo.ActionsRow).Components[0].(*discordgo.TextInput).Value
|
|
sub = strings.ToLower(sub)
|
|
if sub == "y" || sub == "ye" || sub == "yes" {
|
|
err := store.Flush(context.Background())
|
|
msg := "Flushed all claims!"
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to flush claims")
|
|
msg = "failed to flush claims from database"
|
|
}
|
|
|
|
err = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
|
|
Type: discordgo.InteractionResponseChannelMessageWithSource,
|
|
Data: &discordgo.InteractionResponseData{
|
|
Content: msg,
|
|
},
|
|
})
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to respond to interaction")
|
|
}
|
|
return
|
|
}
|
|
|
|
err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
|
|
Type: discordgo.InteractionResponseChannelMessageWithSource,
|
|
Data: &discordgo.InteractionResponseData{
|
|
Content: "Aborted...",
|
|
},
|
|
})
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to respond to interaction")
|
|
}
|
|
return
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
const TABLE_PATTERN = "| %-*s | %-*s | %-*s | %-*s |\n"
|
|
|
|
func formatClaimsTable(claims []themis.Claim) string {
|
|
sb := strings.Builder{}
|
|
maxLengths := []int{2, 6, 4, 4} // id, player, type, name
|
|
for _, c := range claims {
|
|
sid := strconv.Itoa(c.ID)
|
|
if len(sid) > maxLengths[0] {
|
|
maxLengths[0] = len(sid)
|
|
}
|
|
if len(c.Player) > maxLengths[1] {
|
|
maxLengths[1] = len(c.Player)
|
|
}
|
|
// The raw claim value is different from the formatted string
|
|
strType := c.Type.String()
|
|
if len(strType) > maxLengths[2] {
|
|
maxLengths[2] = len(strType)
|
|
}
|
|
if len(c.Name) > maxLengths[3] {
|
|
maxLengths[3] = len(c.Name)
|
|
}
|
|
}
|
|
|
|
sb.WriteString(fmt.Sprintf(TABLE_PATTERN, maxLengths[0], "ID", maxLengths[1], "Player", maxLengths[2], "Type", maxLengths[3], "Name"))
|
|
sb.WriteString(fmt.Sprintf(TABLE_PATTERN, maxLengths[0], strings.Repeat("-", maxLengths[0]), maxLengths[1], strings.Repeat("-", maxLengths[1]), maxLengths[2], strings.Repeat("-", maxLengths[2]), maxLengths[3], strings.Repeat("-", maxLengths[3])))
|
|
for _, c := range claims {
|
|
sb.WriteString(fmt.Sprintf(TABLE_PATTERN, maxLengths[0], strconv.Itoa(c.ID), maxLengths[1], c.Player, maxLengths[2], c.Type, maxLengths[3], c.Name))
|
|
}
|
|
return sb.String()
|
|
}
|
|
|
|
func handleClaimAutocomplete(ctx context.Context, store *themis.Store, s *discordgo.Session, i *discordgo.InteractionCreate) {
|
|
opts := i.ApplicationCommandData().Options
|
|
claimType, err := themis.ClaimTypeFromString(opts[0].StringValue())
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to parse claim type")
|
|
return
|
|
}
|
|
|
|
availability, err := store.ListAvailability(ctx, claimType, opts[1].StringValue())
|
|
if err != nil {
|
|
log.Error().Err(err).Msg("failed to list availabilities")
|
|
return
|
|
}
|
|
|
|
choices := make([]*discordgo.ApplicationCommandOptionChoice, 0, len(availability))
|
|
for _, s := range availability {
|
|
choices = append(choices, &discordgo.ApplicationCommandOptionChoice{
|
|
Name: s,
|
|
Value: s,
|
|
})
|
|
}
|
|
|
|
if err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
|
|
Type: discordgo.InteractionApplicationCommandAutocompleteResult,
|
|
Data: &discordgo.InteractionResponseData{
|
|
Choices: choices[:min(len(choices), 25)],
|
|
},
|
|
}); err != nil {
|
|
log.Error().Err(err).Msg("failed to respond to interaction")
|
|
}
|
|
}
|
|
|
|
func serve(address string) error {
|
|
http.Handle("/health", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Write([]byte("OK")) //nolint:errcheck // this is expected to always work, 'trust me bro' guaranteed
|
|
}))
|
|
|
|
return http.ListenAndServe(address, nil)
|
|
}
|
|
|
|
func min(a, b int) int {
|
|
if a < b {
|
|
return a
|
|
}
|
|
return b
|
|
}
|