package chat

import (
	"fmt"
	"strings"
	"time"

	"github.com/ayn2op/tview"
	"github.com/diamondburned/arikawa/v3/discord"
	"github.com/diamondburned/arikawa/v3/state"
	"github.com/gdamore/tcell/v3"
)

const userInfoLayerName = "userInfo"

func (ml *messagesList) showUserInfo() {
	msg, err := ml.selectedMessage()
	if err != nil {
		return
	}

	var lines []tview.Line
	b := tview.NewLineBuilder()
	boldStyle := tcell.StyleDefault.Bold(true)
	dimStyle := tcell.StyleDefault.Dim(true)
	normalStyle := tcell.StyleDefault

	// Username
	b.Write("Username: ", dimStyle)
	b.Write(msg.Author.DisplayOrUsername(), boldStyle)
	lines = append(lines, b.Finish()...)

	if msg.Author.DisplayName != "" && msg.Author.DisplayName != msg.Author.Username {
		b = tview.NewLineBuilder()
		b.Write("Display:  ", dimStyle)
		b.Write(msg.Author.DisplayName, normalStyle)
		lines = append(lines, b.Finish()...)
	}

	// Account created (derived from snowflake ID)
	b = tview.NewLineBuilder()
	created := discord.Snowflake(msg.Author.ID).Time()
	b.Write("Created:  ", dimStyle)
	b.Write(created.Format("Jan 2, 2006"), normalStyle)
	lines = append(lines, b.Finish()...)

	// Guild-specific info
	if msg.GuildID.IsValid() {
		member, err := ml.chatView.state.Cabinet.Member(msg.GuildID, msg.Author.ID)
		if err == nil && member != nil {
			// Join date
			if member.Joined.IsValid() {
				b = tview.NewLineBuilder()
				b.Write("Joined:   ", dimStyle)
				b.Write(member.Joined.Time().In(time.Local).Format("Jan 2, 2006"), normalStyle)
				lines = append(lines, b.Finish()...)
			}

			// Nickname
			if member.Nick != "" {
				b = tview.NewLineBuilder()
				b.Write("Nickname: ", dimStyle)
				b.Write(member.Nick, normalStyle)
				lines = append(lines, b.Finish()...)
			}

			// Roles
			if len(member.RoleIDs) > 0 {
				b = tview.NewLineBuilder()
				b.Write("Roles:    ", dimStyle)
				var roleNames []string
				for _, roleID := range member.RoleIDs {
					role, err := ml.chatView.state.Cabinet.Role(msg.GuildID, roleID)
					if err != nil {
						continue
					}
					roleNames = append(roleNames, role.Name)
				}
				if len(roleNames) > 0 {
					b.Write(strings.Join(roleNames, ", "), normalStyle)
					lines = append(lines, b.Finish()...)
				}
			}

			// Top role color indicator
			roleColor, ok := state.MemberColor(member, func(id discord.RoleID) *discord.Role {
				r, _ := ml.chatView.state.Cabinet.Role(msg.GuildID, id)
				return r
			})
			if ok {
				b = tview.NewLineBuilder()
				b.Write("Color:    ", dimStyle)
				colorHex := fmt.Sprintf("#%06X", uint32(roleColor))
				b.Write(colorHex, normalStyle.Foreground(tcell.NewHexColor(int32(roleColor))))
				lines = append(lines, b.Finish()...)
			}
		}
	}

	// User ID
	b = tview.NewLineBuilder()
	b.Write("ID:       ", dimStyle)
	b.Write(msg.Author.ID.String(), normalStyle)
	lines = append(lines, b.Finish()...)

	tv := tview.NewTextView().
		SetWrap(true).
		SetWordWrap(true).
		SetLines(lines)
	tv.SetTitle(msg.Author.DisplayOrUsername())

	ml.chatView.showUserInfoOverlay(tv)
}