package cmd

import (
	"fmt"

	"code.gitea.io/sdk/gitea"
	"github.com/spf13/cobra"
)

var repoSearchCmd = &cobra.Command{
	Use:     "search [query]",
	Aliases: []string{"s"},
	Short:   "Search repositories on the current host",
	Long: `Search repositories using the host's search index.

The query is matched against name by default. Pass --topic to match against
topics only, or --description to include descriptions. --type limits results
to "source" (non-fork, non-mirror), "fork", or "mirror" repositories.`,
	Example: `  # Search by name substring
  fgj repo search tea

  # Search by topic
  fgj repo search ci --topic

  # Find only forks
  fgj repo search go --type fork

  # List private repos owned by a user (no query)
  fgj repo search --owner alice --private --limit 50

  # Output as JSON
  fgj repo search platform --json`,
	Args: cobra.MaximumNArgs(1),
	RunE: runRepoSearch,
}

func init() {
	repoCmd.AddCommand(repoSearchCmd)

	repoSearchCmd.Flags().Bool("topic", false, "Match query against topics only")
	repoSearchCmd.Flags().Bool("description", false, "Include descriptions in the search")
	repoSearchCmd.Flags().Bool("private", false, "Limit to private repositories")
	repoSearchCmd.Flags().Bool("archived", false, "Include archived repositories")
	repoSearchCmd.Flags().Bool("exclude-templates", false, "Exclude template repositories")
	repoSearchCmd.Flags().String("type", "", "Filter by repo type: source, fork, mirror")
	repoSearchCmd.Flags().String("owner", "", "Limit to repos owned by this user or org")
	repoSearchCmd.Flags().String("sort", "", "Sort by: alpha, created, updated, size, id")
	repoSearchCmd.Flags().String("order", "", "Order: asc or desc")
	repoSearchCmd.Flags().IntP("limit", "L", 30, "Maximum number of results")

	addJSONFlags(repoSearchCmd, "Output as JSON")
}

func runRepoSearch(cmd *cobra.Command, args []string) error {
	client, err := loadClient()
	if err != nil {
		return err
	}

	query := ""
	if len(args) == 1 {
		query = args[0]
	}

	topic, _ := cmd.Flags().GetBool("topic")
	desc, _ := cmd.Flags().GetBool("description")
	private, _ := cmd.Flags().GetBool("private")
	archived, _ := cmd.Flags().GetBool("archived")
	excludeTemplates, _ := cmd.Flags().GetBool("exclude-templates")
	sort, _ := cmd.Flags().GetString("sort")
	order, _ := cmd.Flags().GetString("order")
	typeFlag, _ := cmd.Flags().GetString("type")
	limit, _ := cmd.Flags().GetInt("limit")
	if limit <= 0 {
		limit = 30
	}

	var repoType gitea.RepoType
	switch typeFlag {
	case "":
		repoType = gitea.RepoTypeNone
	case "source":
		repoType = gitea.RepoTypeSource
	case "fork":
		repoType = gitea.RepoTypeFork
	case "mirror":
		repoType = gitea.RepoTypeMirror
	default:
		return fmt.Errorf("invalid --type %q (must be source, fork, or mirror)", typeFlag)
	}

	opt := gitea.SearchRepoOptions{
		ListOptions:          gitea.ListOptions{PageSize: limit},
		Keyword:              query,
		KeywordIsTopic:       topic,
		KeywordInDescription: desc,
		IsPrivate:            optionalBool(private),
		IsArchived:           optionalBool(archived),
		ExcludeTemplate:      excludeTemplates,
		Type:                 repoType,
		Sort:                 sort,
		Order:                order,
	}

	if o, _ := cmd.Flags().GetString("owner"); o != "" {
		u, _, err := client.GetUserInfo(o)
		if err != nil {
			return fmt.Errorf("failed to resolve owner %q: %w", o, err)
		}
		opt.OwnerID = u.ID
	}

	repos, _, err := client.SearchRepos(opt)
	if err != nil {
		return fmt.Errorf("search failed: %w", err)
	}

	if wantJSON(cmd) {
		return outputJSON(cmd, repos)
	}

	if len(repos) == 0 {
		fmt.Fprintln(ios.Out, "No repositories match.")
		return nil
	}

	tp := ios.NewTablePrinter()
	tp.AddHeader("FULL NAME", "VISIBILITY", "DESCRIPTION", "STARS")
	for _, r := range repos {
		visibility := "public"
		if r.Private {
			visibility = "private"
		}
		tp.AddRow(r.FullName, visibility, r.Description, fmt.Sprintf("%d", r.Stars))
	}
	return tp.Render()
}

// optionalBool returns a pointer when the user explicitly wants the positive
// filter (IsPrivate/IsArchived); nil means "no filter" to the SDK.
func optionalBool(v bool) *bool {
	if !v {
		return nil
	}
	return &v
}