// Copyright 2025 eat-pray-ai & OpenWaygate
// SPDX-License-Identifier: Apache-2.0

package subscription

import (
	"fmt"
	"io"
	"strings"

	cobramcp "github.com/eat-pray-ai/cobra-mcp"
	"github.com/eat-pray-ai/yutu/cmd"
	"github.com/eat-pray-ai/yutu/pkg"
	"github.com/eat-pray-ai/yutu/pkg/subscription"
	"github.com/eat-pray-ai/yutu/pkg/utils"
	"github.com/google/jsonschema-go/jsonschema"
	"github.com/modelcontextprotocol/go-sdk/mcp"
	"github.com/spf13/cobra"
)

const (
	deleteTool     = "subscription-delete"
	deleteIdsUsage = "IDs of the subscriptions to delete"
	deleteConfirm  = "Delete subscription(s): %s"
	deleteShort    = "Delete subscriptions"
	deleteLong     = "Delete subscriptions. Use this tool to delete subscriptions by IDs."
	deleteExample  = `# Delete a subscription by ID
yutu subscription delete --ids abc123
# Delete multiple subscriptions
yutu subscription delete --ids abc123,def456`
)

var deleteInSchema = &jsonschema.Schema{
	Type:     "object",
	Required: []string{"ids"},
	Properties: map[string]*jsonschema.Schema{
		"ids": {
			Type: "array", Description: deleteIdsUsage,
			Items: &jsonschema.Schema{Type: "string"},
		},
	},
}

func init() {
	mcp.AddTool(
		cmd.Server, &mcp.Tool{
			Name: deleteTool, Title: deleteShort, Description: deleteLong,
			InputSchema: deleteInSchema, Annotations: &mcp.ToolAnnotations{
				DestructiveHint: new(true),
				IdempotentHint:  true,
				OpenWorldHint:   new(true),
				ReadOnlyHint:    false,
			},
		}, cobramcp.GenToolHandlerWithMRTR(
			deleteTool, cobramcp.ConfirmThen(
				func(input subscription.Subscription) string {
					return fmt.Sprintf(deleteConfirm, strings.Join(input.Ids, ", "))
				},
				func(input subscription.Subscription, w io.Writer) error {
					return input.Delete(w)
				},
			),
		),
	)
	subscriptionCmd.AddCommand(deleteCmd)

	deleteCmd.Flags().StringSliceVarP(&ids, "ids", "i", []string{}, deleteIdsUsage)
	deleteCmd.Flags().Bool("yes", false, pkg.ConfirmedUsage)
	_ = deleteCmd.MarkFlagRequired("ids")
}

var deleteCmd = &cobra.Command{
	Use:     "delete",
	Short:   deleteShort,
	Long:    deleteLong,
	Example: deleteExample,
	PreRunE: func(c *cobra.Command, _ []string) error {
		return utils.ConfirmPreRun(
			c, fmt.Sprintf(deleteConfirm, strings.Join(ids, ", ")),
		)
	},
	Run: func(c *cobra.Command, _ []string) {
		input := subscription.NewSubscription(
			subscription.WithIds(ids),
		)
		utils.HandleCmdError(input.Delete(c.OutOrStdout()), c)
	},
}