// Copyright 2025 eat-pray-ai & OpenWaygate
// SPDX-License-Identifier: Apache-2.0
package channel
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/channel"
"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 (
listTool = "channel-list"
listShort = "List channel's info"
listLong = "List channel's info, such as title, description, etc."
listIdsUsage = "Return the channels with the specified IDs"
)
type listIn struct {
CategoryId string `json:"categoryId"`
ForHandle string `json:"forHandle"`
ForUsername string `json:"forUsername"`
Hl string `json:"hl"`
Ids []string `json:"ids"`
ManagedByMe *string `json:"managedByMe,omitempty"`
MaxResults int64 `json:"maxResults"`
Mine *string `json:"mine,omitempty"`
MySubscribers *string `json:"mySubscribers,omitempty"`
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{
"categoryId": {
Type: "string", Description: cidUsage,
Default: json.RawMessage(`""`),
},
"forHandle": {
Type: "string", Description: fhUsage,
Default: json.RawMessage(`""`),
},
"forUsername": {
Type: "string", Description: fuUsage,
Default: json.RawMessage(`""`),
},
"hl": {
Type: "string", Description: hlUsage,
Default: json.RawMessage(`""`),
},
"ids": {
Type: "array", Items: &jsonschema.Schema{
Type: "string",
},
Description: listIdsUsage,
Default: json.RawMessage(`[]`),
},
"managedByMe": {
Type: "string", Enum: []any{"true", "false", ""},
Description: mbmUsage, Default: json.RawMessage(`""`),
},
"maxResults": {
Type: "number", Description: pkg.MRUsage,
Default: json.RawMessage("5"),
Minimum: jsonschema.Ptr(float64(0)),
},
"mine": {
Type: "string", Enum: []any{"true", "false", ""},
Description: mineUsage, Default: json.RawMessage(`""`),
},
"mySubscribers": {
Type: "string", Enum: []any{"true", "false", ""},
Description: msUsage, 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,
)
channelCmd.AddCommand(listCmd)
listCmd.Flags().StringVarP(
&categoryId, "categoryId", "g", "", cidUsage,
)
listCmd.Flags().StringVarP(
&forHandle, "forHandle", "d", "", fhUsage,
)
listCmd.Flags().StringVarP(
&forUsername, "forUsername", "u", "", fuUsage,
)
listCmd.Flags().StringVarP(&hl, "hl", "l", "", hlUsage)
listCmd.Flags().StringSliceVarP(&ids, "ids", "i", []string{}, listIdsUsage)
listCmd.Flags().BoolVarP(
managedByMe, "managedByMe", "E", false, mbmUsage,
)
listCmd.Flags().Int64VarP(
&maxResults, "maxResults", "n", 5, pkg.MRUsage,
)
listCmd.Flags().BoolVarP(mine, "mine", "M", true, mineUsage)
listCmd.Flags().BoolVarP(
mySubscribers, "mySubscribers", "S", false, msUsage,
)
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},
),
)
categoryId = input.CategoryId
forHandle = input.ForHandle
forUsername = input.ForUsername
hl = input.Hl
ids = input.Ids
managedByMe = utils.BoolPtr(*input.ManagedByMe)
maxResults = input.MaxResults
mine = utils.BoolPtr(*input.Mine)
mySubscribers = utils.BoolPtr(*input.MySubscribers)
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 {
c := channel.NewChannel(
channel.WithCategoryId(categoryId),
channel.WithForHandle(forHandle),
channel.WithForUsername(forUsername),
channel.WithHl(hl),
channel.WithIDs(ids),
channel.WithChannelManagedByMe(managedByMe),
channel.WithMaxResults(maxResults),
channel.WithMine(mine),
channel.WithMySubscribers(mySubscribers),
channel.WithOnBehalfOfContentOwner(onBehalfOfContentOwner),
channel.WithService(nil),
)
return c.List(parts, output, jpath, writer)
}
