package tools

import (
	"context"
	"encoding/json"

	"git.d-ma.be/mathias/gitea-mcp/internal/allowlist"
	"git.d-ma.be/mathias/gitea-mcp/internal/gitea"
	"git.d-ma.be/mathias/gitea-mcp/internal/registry"
)

type LabelList struct {
	c *gitea.Client
	a *allowlist.Allowlist
}

func NewLabelList(c *gitea.Client, a *allowlist.Allowlist) *LabelList {
	return &LabelList{c: c, a: a}
}

func (t *LabelList) Descriptor() registry.ToolDescriptor {
	return registry.ToolDescriptor{
		Name:        "label_list",
		Description: "List all labels defined on a repo. Returns id, name, and color for each label.",
		InputSchema: json.RawMessage(`{
			"type":"object",
			"properties":{
				"owner":{"type":"string"},
				"repo":{"type":"string"}
			},
			"required":["owner","repo"]
		}`),
	}
}

type labelListArgs struct {
	Owner string `json:"owner"`
	Repo  string `json:"repo"`
}

func (t *LabelList) Call(ctx context.Context, raw json.RawMessage) (json.RawMessage, error) {
	var args labelListArgs
	if err := parseArgs(raw, &args); err != nil {
		return nil, err
	}
	if err := t.a.Check(ctx, args.Owner); err != nil {
		return nil, err
	}
	labels, err := t.c.ListLabels(ctx, args.Owner, args.Repo)
	if err != nil {
		return nil, err
	}
	return textOK(labels)
}