// Copyright 2025 eat-pray-ai & OpenWaygate
// SPDX-License-Identifier: Apache-2.0
package watermark
import (
"bytes"
"context"
"encoding/json"
"io"
"log/slog"
"time"
"github.com/eat-pray-ai/yutu/cmd"
"github.com/eat-pray-ai/yutu/pkg/watermark"
"github.com/google/jsonschema-go/jsonschema"
"github.com/modelcontextprotocol/go-sdk/mcp"
"github.com/spf13/cobra"
)
const (
unsetTool = "watermark-unset"
unsetShort = "Unset watermark for channel's video"
unsetLong = "Unset watermark for channel's video by channel id"
)
type unsetIn struct {
ChannelId string `json:"channelId"`
}
var unsetInSchema = &jsonschema.Schema{
Type: "object",
Required: []string{"channelId"},
Properties: map[string]*jsonschema.Schema{
"channelId": {
Type: "string",
Description: cidUsage,
Default: json.RawMessage(`""`),
},
},
}
func init() {
mcp.AddTool(
cmd.Server, &mcp.Tool{
Name: unsetTool, Title: unsetShort, Description: unsetLong,
InputSchema: unsetInSchema, Annotations: &mcp.ToolAnnotations{
DestructiveHint: jsonschema.Ptr(true),
IdempotentHint: true,
OpenWorldHint: jsonschema.Ptr(true),
ReadOnlyHint: false,
},
}, unsetHandler,
)
watermarkCmd.AddCommand(unsetCmd)
unsetCmd.Flags().StringVarP(&channelId, "channelId", "c", "", cidUsage)
_ = unsetCmd.MarkFlagRequired("channelId")
}
var unsetCmd = &cobra.Command{
Use: "unset",
Short: unsetShort,
Long: unsetLong,
Run: func(cmd *cobra.Command, args []string) {
err := unset(cmd.OutOrStdout())
if err != nil {
_ = cmd.Help()
cmd.PrintErrf("Error: %v\n", err)
}
},
}
func unsetHandler(
ctx context.Context, req *mcp.CallToolRequest, input unsetIn,
) (*mcp.CallToolResult, any, error) {
logger := slog.New(
mcp.NewLoggingHandler(
req.Session,
&mcp.LoggingHandlerOptions{
LoggerName: unsetTool, MinInterval: time.Second,
},
),
)
channelId = input.ChannelId
var writer bytes.Buffer
err := unset(&writer)
if err != nil {
logger.ErrorContext(ctx, err.Error(), "input", input)
return nil, nil, err
}
return &mcp.CallToolResult{Content: []mcp.Content{&mcp.TextContent{Text: writer.String()}}}, nil, nil
}
func unset(writer io.Writer) error {
w := watermark.NewWatermark(
watermark.WithChannelId(channelId),
watermark.WithService(nil),
)
return w.Unset(writer)
}
