package data

import (
	"context"
	"errors"
	"fmt"
	"log/slog"
	"os"
	"os/exec"
	"path/filepath"
	"time"

	"github.com/leonelquinteros/gotext"
	"github.com/libtnb/utils/str"
	"gorm.io/gorm"

	"github.com/acepanel/panel/internal/app"
	"github.com/acepanel/panel/internal/biz"
	"github.com/acepanel/panel/internal/http/request"
	"github.com/acepanel/panel/pkg/io"
)

type webhookRepo struct {
	t   *gotext.Locale
	db  *gorm.DB
	log *slog.Logger
}

func NewWebHookRepo(t *gotext.Locale, db *gorm.DB, log *slog.Logger) biz.WebHookRepo {
	return &webhookRepo{
		t:   t,
		db:  db,
		log: log,
	}
}

func (r *webhookRepo) List(page, limit uint) ([]*biz.WebHook, int64, error) {
	webhooks := make([]*biz.WebHook, 0)
	var total int64
	err := r.db.Model(&biz.WebHook{}).Order("id desc").Count(&total).Offset(int((page - 1) * limit)).Limit(int(limit)).Find(&webhooks).Error
	return webhooks, total, err
}

func (r *webhookRepo) Get(id uint) (*biz.WebHook, error) {
	webhook := new(biz.WebHook)
	if err := r.db.Where("id = ?", id).First(webhook).Error; err != nil {
		return nil, err
	}
	return webhook, nil
}

func (r *webhookRepo) GetByKey(key string) (*biz.WebHook, error) {
	webhook := new(biz.WebHook)
	if err := r.db.Where("`key` = ?", key).First(webhook).Error; err != nil {
		return nil, err
	}
	return webhook, nil
}

func (r *webhookRepo) Create(ctx context.Context, req *request.WebHookCreate) (*biz.WebHook, error) {
	if err := os.MkdirAll(r.webhookDir(), 0755); err != nil {
		return nil, errors.New(r.t.Get("failed to create webhook directory: %v", err))
	}

	key := str.Random(32)
	scriptFile := r.scriptPath(key)
	if err := io.Write(scriptFile, req.Script, 0755); err != nil {
		return nil, errors.New(r.t.Get("failed to write webhook script: %v", err))
	}

	webhook := &biz.WebHook{
		Name:   req.Name,
		Key:    key,
		Script: req.Script,
		Raw:    req.Raw,
		User:   req.User,
		Status: true,
	}

	if err := r.db.Create(webhook).Error; err != nil {
		_ = os.Remove(scriptFile)
		return nil, err
	}

	// 记录日志
	r.log.Info("webhook created", slog.String("type", biz.OperationTypeWebhook), slog.Uint64("operator_id", getOperatorID(ctx)), slog.String("name", req.Name))

	return webhook, nil
}

func (r *webhookRepo) Update(ctx context.Context, req *request.WebHookUpdate) error {
	webhook, err := r.Get(req.ID)
	if err != nil {
		return err
	}

	scriptFile := r.scriptPath(webhook.Key)
	if err = io.Write(scriptFile, req.Script, 0755); err != nil {
		return errors.New(r.t.Get("failed to write webhook script: %v", err))
	}

	if err = r.db.Model(&biz.WebHook{}).Where("id = ?", req.ID).Updates(map[string]any{
		"name":   req.Name,
		"script": req.Script,
		"raw":    req.Raw,
		"user":   req.User,
		"status": req.Status,
	}).Error; err != nil {
		return err
	}

	// 记录日志
	r.log.Info("webhook updated", slog.String("type", biz.OperationTypeWebhook), slog.Uint64("operator_id", getOperatorID(ctx)), slog.Uint64("id", uint64(req.ID)), slog.String("name", req.Name))

	return nil
}

func (r *webhookRepo) Delete(ctx context.Context, id uint) error {
	webhook, err := r.Get(id)
	if err != nil {
		return err
	}

	scriptFile := r.scriptPath(webhook.Key)
	_ = os.Remove(scriptFile)

	if err = r.db.Delete(&biz.WebHook{}, id).Error; err != nil {
		return err
	}

	// 记录日志
	r.log.Info("webhook deleted", slog.String("type", biz.OperationTypeWebhook), slog.Uint64("operator_id", getOperatorID(ctx)), slog.Uint64("id", uint64(id)), slog.String("name", webhook.Name))

	return nil
}

func (r *webhookRepo) Call(key string) (string, error) {
	webhook, err := r.GetByKey(key)
	if err != nil {
		return "", errors.New(r.t.Get("webhook not found"))
	}

	if !webhook.Status {
		return "", errors.New(r.t.Get("webhook is disabled"))
	}

	scriptFile := r.scriptPath(key)
	if !io.Exists(scriptFile) {
		return "", errors.New(r.t.Get("webhook script not found"))
	}

	// 执行脚本
	var cmd *exec.Cmd
	if webhook.User == "" || webhook.User == "root" {
		cmd = exec.Command("bash", scriptFile)
	} else {
		cmd = exec.Command("su", "-s", "/bin/bash", "-c", fmt.Sprintf("bash %s", scriptFile), webhook.User)
	}

	output, err := cmd.CombinedOutput()

	// 更新调用统计
	_ = r.db.Model(&biz.WebHook{}).Where("`key` = ?", key).Updates(map[string]any{
		"call_count":   gorm.Expr("call_count + 1"),
		"last_call_at": time.Now(),
	}).Error

	if err != nil {
		return string(output), fmt.Errorf("script execution failed: %w, output: %s", err, string(output))
	}

	return string(output), nil
}

// webhookDir 返回 webhook 脚本存储目录
func (r *webhookRepo) webhookDir() string {
	return filepath.Join(app.Root, "server", "webhook")
}

// scriptPath 返回指定 key 的脚本路径
func (r *webhookRepo) scriptPath(key string) string {
	return filepath.Join(r.webhookDir(), key+".sh")
}