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 RepoCreate struct {
	c *gitea.Client
	a *allowlist.Allowlist
}

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

func (t *RepoCreate) Descriptor() registry.ToolDescriptor {
	return registry.ToolDescriptor{
		Name:        "repo_create",
		Description: "Create a repository for the authenticated user or an organisation.",
		InputSchema: json.RawMessage(`{
			"type":"object",
			"properties":{
				"owner":{"type":"string","description":"Username or org name (used for allowlist check)."},
				"name":{"type":"string","description":"Repository name."},
				"description":{"type":"string"},
				"private":{"type":"boolean","description":"Create as private. Default false."},
				"auto_init":{"type":"boolean","description":"Initialise with README."},
				"default_branch":{"type":"string","description":"Default branch name. Default 'main'."},
				"is_org":{"type":"boolean","description":"When true, create under the organisation named in 'owner'."}
			},
			"required":["owner","name"]
		}`),
	}
}

type repoCreateArgs struct {
	Owner         string `json:"owner"`
	Name          string `json:"name"`
	Description   string `json:"description"`
	Private       bool   `json:"private"`
	AutoInit      bool   `json:"auto_init"`
	DefaultBranch string `json:"default_branch"`
	IsOrg         bool   `json:"is_org"`
}

func (t *RepoCreate) Call(ctx context.Context, raw json.RawMessage) (json.RawMessage, error) {
	var args repoCreateArgs
	if err := parseArgs(raw, &args); err != nil {
		return nil, err
	}
	if err := t.a.Check(args.Owner); err != nil {
		return nil, err
	}
	createArgs := gitea.CreateRepoArgs{
		Name:          args.Name,
		Description:   args.Description,
		Private:       args.Private,
		AutoInit:      args.AutoInit,
		DefaultBranch: args.DefaultBranch,
	}
	if args.IsOrg {
		createArgs.Org = args.Owner
	}
	r, err := t.c.CreateRepo(ctx, createArgs)
	if err != nil {
		return nil, err
	}
	return textOK(r)
}