package handlers

// repo_lookup.go — shared helper used by all handlers that resolve
// {owner}/{repo} URL params to a repository row.
//
// The owner segment can be either a user username (user-owned repo) or a
// workspace handle (workspace-owned repo). This tries user-namespace first,
// then workspace-namespace, so the lookup is always unambiguous.

import (
	"net/http"

	"github.com/go-chi/chi/v5"
	"xorm.io/xorm"

	"github.com/forgeo/forgebucket/internal/models"
)

// resolveRepoID resolves /{owner}/{repo} to a repository ID.
// It tries user namespace first, then workspace namespace.
// Returns (repoID, true) on success or writes a 404 and returns (0, false).
func resolveRepoID(db *xorm.Engine, w http.ResponseWriter, r *http.Request) (int64, bool) {
	repo, ok := resolveRepo(db, w, r)
	if !ok {
		return 0, false
	}
	return repo.ID, true
}

// resolveRepo is the full repo lookup returning the Repository struct.
func resolveRepo(db *xorm.Engine, w http.ResponseWriter, r *http.Request) (*models.Repository, bool) {
	ownerName := chi.URLParam(r, "owner")
	repoName := chi.URLParam(r, "repo")

	// 1. Try user namespace.
	var u models.User
	if found, _ := db.Where("username = ?", ownerName).Get(&u); found {
		var repo models.Repository
		if found2, _ := db.Where("owner_id = ? AND name = ?", u.ID, repoName).Get(&repo); found2 {
			return &repo, true
		}
	}

	// 2. Try workspace namespace.
	var ws models.Workspace
	if found, _ := db.Where("handle = ?", ownerName).Get(&ws); found {
		var repo models.Repository
		if found2, _ := db.Where("workspace_id = ? AND name = ?", ws.ID, repoName).Get(&repo); found2 {
			return &repo, true
		}
	}

	jsonError(w, "repository not found", http.StatusNotFound)
	return nil, false
}