package main

import (
	"context"
	"errors"
	"strconv"
	"strings"

	"fergalla.com/dockerbot/internal/apperrors"
	"github.com/go-telegram/bot"
	"github.com/go-telegram/bot/models"
)

func (appCtx *App) handleDockerLogs(ctx context.Context, b *bot.Bot, chatID int64, params []string) {
	if len(params) == 0 {
		appCtx.sendMessage(
			ctx,
			b,
			chatID,
			appCtx.T("e.container.missing_name", map[string]string{
				"example": "logs",
				"opts":    " --tail 10",
			}),
			true,
			nil,
		)
		return
	}

	container, tail := parseLogsParams(params)

	text, keyboard, err := appCtx.renderContainerLogs(ctx, container, 0, tail)
	if err != nil {
		appCtx.logger.Error(
			"Failed to render container logs",
			"module", "Bot",
			"container", container,
			"tail", tail,
			"error", err,
		)
		if errors.Is(err, apperrors.ErrContainerNotFound) {
			appCtx.sendMessage(ctx, b, chatID, appCtx.T("e.container.not_found"), true, nil)
		} else {
			appCtx.sendMessage(ctx, b, chatID, appCtx.T("e.container.logs"), true, nil)
		}
		return
	}
	appCtx.sendMessage(ctx, b, chatID, text, true, keyboard)
}

func parseLogsParams(params []string) (container string, tail int) {
	const defaultTail = 0
	const maxTail = 100

	if len(params) == 0 {
		return "", defaultTail
	}

	container = params[0]
	tail = defaultTail

	for i := 1; i < len(params); i++ {
		if params[i] == "--tail" && i+1 < len(params) {
			if v, err := strconv.Atoi(params[i+1]); err == nil {
				tail = v
			}
			i++ // saltar valor
		}
	}

	// clamp
	if tail <= 0 {
		tail = defaultTail
	}
	if tail > maxTail {
		tail = maxTail
	}

	return
}

func (appCtx *App) callbackDockerLogs(ctx context.Context, b *bot.Bot, update *models.Update) {
	if update.CallbackQuery == nil {
		return
	}

	cb := update.CallbackQuery
	parts := strings.Split(cb.Data, ":")

	if len(parts) < 2 {
		return
	}

	container := parts[1]

	pageIndex := 0
	if len(parts) >= 3 {
		if p, err := strconv.Atoi(parts[2]); err == nil {
			pageIndex = p
		}
	}
	tail := 0 // default
	if len(parts) >= 4 {
		if t, err := strconv.Atoi(parts[3]); err == nil {
			tail = t
		}
	}

	text, keyboard, err := appCtx.renderContainerLogs(ctx, container, pageIndex, tail)
	if err != nil {
		appCtx.logger.Error("Logs render generator failed", "error", err)
		b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
			CallbackQueryID: cb.ID,
			Text:            appCtx.T("e.container.logs"),
			ShowAlert:       true,
		})
		return
	}

	b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
		CallbackQueryID: cb.ID,
	})

	_, err = b.EditMessageText(ctx, &bot.EditMessageTextParams{
		ChatID:      cb.Message.Message.Chat.ID,
		MessageID:   cb.Message.Message.ID,
		Text:        text,
		ParseMode:   "html",
		ReplyMarkup: keyboard,
	})

	if err != nil {
		appCtx.logger.Warn("Failed to render logs", "error", err)
		return
	}
}

func (appCtx *App) callbackDockerLogsRefresh(ctx context.Context, b *bot.Bot, update *models.Update) {
	if update.CallbackQuery == nil {
		return
	}

	cb := update.CallbackQuery
	parts := strings.Split(cb.Data, ":")

	if len(parts) < 2 {
		return
	}

	container := parts[1]

	pageIndex := 0
	if len(parts) >= 3 {
		if p, err := strconv.Atoi(parts[2]); err == nil {
			pageIndex = p
		}
	}
	tail := 0 // default
	if len(parts) >= 4 {
		if t, err := strconv.Atoi(parts[3]); err == nil {
			tail = t
		}
	}

	// 🎨 render logs actualizado
	text, keyboard, err := appCtx.renderContainerLogs(ctx, container, pageIndex, tail)
	if err != nil {
		var msg string
		if errors.Is(err, apperrors.ErrContainerNotFound) {
			msg = appCtx.T("e.container.not_found")
		} else {
			msg = appCtx.T("e.container.logs")
		}
		b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
			CallbackQueryID: cb.ID,
			Text:            msg,
			ShowAlert:       true,
		})
		return
	}

	// ✅ feedback UX
	b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
		CallbackQueryID: cb.ID,
		Text:            "🔄 " + appCtx.T("ui.updated"),
		ShowAlert:       false,
	})

	// 🔄 actualizar mensaje
	_, err = b.EditMessageText(ctx, &bot.EditMessageTextParams{
		ChatID:      cb.Message.Message.Chat.ID,
		MessageID:   cb.Message.Message.ID,
		Text:        text,
		ParseMode:   "html",
		ReplyMarkup: keyboard,
	})

	if err != nil {
		appCtx.logger.Warn(
			"Failed to refresh logs",
			"module", "Bot",
			"container", container,
			"error", err,
		)
		return
	}
}

func (appCtx *App) callbackDockerBackDetail(ctx context.Context, b *bot.Bot, update *models.Update) {
	if update.CallbackQuery == nil {
		return
	}

	cb := update.CallbackQuery
	parts := strings.Split(cb.Data, ":")

	if len(parts) < 2 {
		return
	}

	container := parts[1]

	pageIndex := 0
	if len(parts) >= 3 {
		if p, err := strconv.Atoi(parts[2]); err == nil {
			pageIndex = p
		}
	}

	text, keyboard, err := appCtx.renderContainerDetail(ctx, container, pageIndex)
	if err != nil {
		b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
			CallbackQueryID: cb.ID,
			Text:            appCtx.T("e.container.info"),
			ShowAlert:       true,
		})
		return
	}

	b.AnswerCallbackQuery(ctx, &bot.AnswerCallbackQueryParams{
		CallbackQueryID: cb.ID,
	})

	_, err = b.EditMessageText(ctx, &bot.EditMessageTextParams{
		ChatID:      cb.Message.Message.Chat.ID,
		MessageID:   cb.Message.Message.ID,
		Text:        text,
		ParseMode:   "html",
		ReplyMarkup: keyboard,
	})

	if err != nil {
		appCtx.logger.Warn("Failed to go back to detail", "error", err)
		return
	}
}