package tools

import (
	"context"
	"encoding/json"

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

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

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

func (t *IssueClose) Descriptor() registry.ToolDescriptor {
	return registry.ToolDescriptor{
		Name:        "issue_close",
		Description: "Close an open issue. Reversible via issue_reopen.",
		InputSchema: json.RawMessage(`{
			"type":"object",
			"properties":{
				"owner":{"type":"string"},
				"name":{"type":"string"},
				"number":{"type":"integer","minimum":1}
			},
			"required":["owner","name","number"]
		}`),
	}
}

type issueCloseArgs struct {
	Owner  string `json:"owner"`
	Name   string `json:"name"`
	Number int    `json:"number"`
}

func (t *IssueClose) Call(ctx context.Context, raw json.RawMessage) (json.RawMessage, error) {
	var args issueCloseArgs
	if err := parseArgs(raw, &args); err != nil {
		return nil, err
	}
	if err := t.a.Check(args.Owner); err != nil {
		return nil, err
	}
	iss, err := t.c.SetIssueState(ctx, args.Owner, args.Name, args.Number, "closed")
	if err != nil {
		return nil, err
	}
	return textOK(iss)
}