package game

import (
	"fmt"
	"sort"
	"strings"

	"thehouseoficarus/internal/net"
)

func (g *Game) executeAlias(sess *net.Session, args []string, rawInput string) {
	g.doAlias(sess, args)
}

func (g *Game) executeUnalias(sess *net.Session, args []string, rawInput string) {
	g.doUnalias(sess, args)
}

func (g *Game) doAlias(sess *net.Session, args []string) {
	if sess.Account == nil {
		sess.WriteLine("No account loaded.")
		return
	}

	if len(args) == 0 {
		if len(sess.Account.Aliases) == 0 {
			sess.WriteLine("No aliases defined. Use ALIAS <name> <command> to create one.")
			return
		}
		sess.WriteLine("Aliases:")
		names := make([]string, 0, len(sess.Account.Aliases))
		maxLen := 0
		for name := range sess.Account.Aliases {
			names = append(names, name)
			if len(name) > maxLen {
				maxLen = len(name)
			}
		}
		sort.Strings(names)
		for _, name := range names {
			sess.WriteLine(fmt.Sprintf("  %-*s: %s", maxLen, name, sess.Account.Aliases[name]))
		}
		return
	}

	if len(args) < 2 {
		sess.WriteLine("Usage: ALIAS <name> <command>")
		return
	}

	aliasName := strings.ToLower(args[0])
	aliasCmd := strings.Join(args[1:], " ")

	if sess.Account.Aliases == nil {
		sess.Account.Aliases = make(map[string]string)
	}
	sess.Account.Aliases[aliasName] = aliasCmd

	acc, err := g.AccountStore.LoadAccount(sess.Account.Name)
	if err != nil {
		sess.WriteLine("Error saving alias.")
		return
	}
	acc.Aliases = sess.Account.Aliases
	if err := g.AccountStore.SaveAccount(acc); err != nil {
		sess.WriteLine("Error saving alias.")
		return
	}

	sess.WriteLine(fmt.Sprintf("Alias set: %s -> %s", aliasName, aliasCmd))
}

func (g *Game) doUnalias(sess *net.Session, args []string) {
	if sess.Account == nil {
		sess.WriteLine("No account loaded.")
		return
	}

	if len(args) == 0 {
		sess.WriteLine("Usage: UNALIAS <name>")
		sess.WriteLine("Removes an alias. Use ALIAS with no arguments to see your aliases.")
		return
	}

	aliasName := strings.ToLower(args[0])

	if sess.Account.Aliases == nil {
		sess.Account.Aliases = make(map[string]string)
	}

	if _, ok := sess.Account.Aliases[aliasName]; !ok {
		sess.WriteLine(fmt.Sprintf("No alias '%s' found.", aliasName))
		return
	}

	delete(sess.Account.Aliases, aliasName)

	acc, err := g.AccountStore.LoadAccount(sess.Account.Name)
	if err != nil {
		sess.WriteLine("Error saving alias.")
		return
	}
	acc.Aliases = sess.Account.Aliases
	if err := g.AccountStore.SaveAccount(acc); err != nil {
		sess.WriteLine("Error saving alias.")
		return
	}

	sess.WriteLine(fmt.Sprintf("Alias '%s' removed.", aliasName))
}