// Copyright 2025 eat-pray-ai & OpenWaygate
// SPDX-License-Identifier: Apache-2.0
package playlistItem
import (
"bytes"
"context"
"encoding/json"
"io"
"log/slog"
"time"
"github.com/eat-pray-ai/yutu/cmd"
"github.com/eat-pray-ai/yutu/pkg"
"github.com/eat-pray-ai/yutu/pkg/playlistItem"
"github.com/google/jsonschema-go/jsonschema"
"github.com/modelcontextprotocol/go-sdk/mcp"
"github.com/spf13/cobra"
)
const (
listTool = "playlistItem-list"
listShort = "List playlist items"
listLong = "List playlist items' info, such as title, description, etc"
listIdsUsage = "IDs of the playlist items to list"
listPidUsage = "Return the playlist items within the given playlist"
)
type listIn struct {
Ids []string `json:"ids"`
PlaylistId string `json:"playlistId"`
MaxResults int64 `json:"maxResults"`
VideoId string `json:"videoId"`
OnBehalfOfContentOwner string `json:"onBehalfOfContentOwner"`
Parts []string `json:"parts"`
Output string `json:"output"`
Jsonpath string `json:"jsonpath"`
}
var listInSchema = &jsonschema.Schema{
Type: "object",
Required: []string{},
Properties: map[string]*jsonschema.Schema{
"ids": {
Type: "array", Items: &jsonschema.Schema{
Type: "string",
},
Description: listIdsUsage,
Default: json.RawMessage(`[]`),
},
"playlistId": {
Type: "string", Description: listPidUsage,
Default: json.RawMessage(`""`),
},
"maxResults": {
Type: "number", Description: pkg.MRUsage,
Default: json.RawMessage("5"),
Minimum: jsonschema.Ptr(float64(0)),
},
"videoId": {
Type: "string", Description: vidUsage,
Default: json.RawMessage(`""`),
},
"onBehalfOfContentOwner": {
Type: "string", Description: "",
Default: json.RawMessage(`""`),
},
"parts": {
Type: "array", Items: &jsonschema.Schema{
Type: "string",
},
Description: pkg.PartsUsage,
Default: json.RawMessage(`["id","snippet","status"]`),
},
"output": {
Type: "string", Enum: []any{"json", "yaml", "table"},
Description: pkg.TableUsage, Default: json.RawMessage(`"yaml"`),
},
"jsonpath": {
Type: "string", Description: pkg.JPUsage,
Default: json.RawMessage(`""`),
},
},
}
func init() {
mcp.AddTool(
cmd.Server, &mcp.Tool{
Name: listTool, Title: listShort, Description: listLong,
InputSchema: listInSchema, Annotations: &mcp.ToolAnnotations{
DestructiveHint: jsonschema.Ptr(false),
IdempotentHint: true,
OpenWorldHint: jsonschema.Ptr(true),
ReadOnlyHint: true,
},
}, listHandler,
)
playlistItemCmd.AddCommand(listCmd)
listCmd.Flags().StringSliceVarP(&ids, "ids", "i", []string{}, listIdsUsage)
listCmd.Flags().StringVarP(&playlistId, "playlistId", "y", "", listPidUsage)
listCmd.Flags().Int64VarP(&maxResults, "maxResults", "n", 5, pkg.MRUsage)
listCmd.Flags().StringVarP(&videoId, "videoId", "v", "", vidUsage)
listCmd.Flags().StringVarP(
&onBehalfOfContentOwner, "onBehalfOfContentOwner", "b", "", "",
)
listCmd.Flags().StringSliceVarP(
&parts, "parts", "p", []string{"id", "snippet", "status"}, pkg.PartsUsage,
)
listCmd.Flags().StringVarP(&output, "output", "o", "table", pkg.TableUsage)
listCmd.Flags().StringVarP(&jpath, "jsonpath", "j", "", pkg.JPUsage)
}
var listCmd = &cobra.Command{
Use: "list",
Short: listShort,
Long: listLong,
Run: func(cmd *cobra.Command, args []string) {
err := list(cmd.OutOrStdout())
if err != nil {
_ = cmd.Help()
cmd.PrintErrf("Error: %v\n", err)
}
},
}
func listHandler(
ctx context.Context, req *mcp.CallToolRequest, input listIn,
) (*mcp.CallToolResult, any, error) {
logger := slog.New(
mcp.NewLoggingHandler(
req.Session,
&mcp.LoggingHandlerOptions{LoggerName: listTool, MinInterval: time.Second},
),
)
ids = input.Ids
playlistId = input.PlaylistId
maxResults = input.MaxResults
videoId = input.VideoId
onBehalfOfContentOwner = input.OnBehalfOfContentOwner
parts = input.Parts
output = input.Output
jpath = input.Jsonpath
var writer bytes.Buffer
err := list(&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 list(writer io.Writer) error {
pi := playlistItem.NewPlaylistItem(
playlistItem.WithIDs(ids),
playlistItem.WithPlaylistId(playlistId),
playlistItem.WithMaxResults(maxResults),
playlistItem.WithVideoId(videoId),
playlistItem.WithOnBehalfOfContentOwner(onBehalfOfContentOwner),
playlistItem.WithService(nil),
)
return pi.List(parts, output, jpath, writer)
}
