/**
 * Core CRUD operations for file-based issue tracking
 *
 * Issues are stored as markdown files with YAML frontmatter in the `issues/` directory.
 *
 * @module issues/core
 */
import { type FileSystem } from "../platform/compat/fs.js";
import type { CreateIssueOptions, Issue, IssueMetadata, ListIssuesOptions, ListIssuesResult, UpdateIssueOptions } from "./schemas/index.js";
/**
 * Default directory for issues
 */
export declare const ISSUES_DIR = "issues";
/**
 * Parse YAML frontmatter from markdown content
 */
export declare function parseFrontmatter(content: string): {
    frontmatter: string;
    body: string;
} | null;
/**
 * Minimal YAML parser for issue frontmatter. Handles ONLY the shapes this
 * module emits: flat `key: value` scalars, `[a, b]` inline arrays, and
 * block arrays (`-` items). Keys may contain letters, digits, `_` and `-`.
 * Values may contain colons (e.g. URLs) since only the first `:` splits the
 * line. Nested maps, multi-line/block scalars, anchors, and quoted keys are
 * NOT supported. Use a real YAML parser if the schema grows beyond this.
 */
export declare function parseYaml(yaml: string): Record<string, unknown>;
/**
 * Serialize metadata to YAML frontmatter
 */
export declare function serializeYaml(metadata: IssueMetadata): string;
/**
 * Serialize issue to markdown file content
 */
export declare function serializeIssue(issue: Issue): string;
/**
 * Parse issue from markdown file content
 */
export declare function parseIssue(content: string, path: string): Issue | null;
/**
 * Issues manager for a project
 */
export declare class IssuesManager {
    private fs;
    private projectDir;
    private issuesDir;
    constructor(projectDir: string, fs?: FileSystem);
    /**
     * Ensure the issues directory exists
     */
    ensureDir(): Promise<void>;
    /**
     * Get all issue IDs in the project
     */
    listIds(): Promise<string[]>;
    /**
     * Create a new issue
     */
    create(options: CreateIssueOptions): Promise<Issue>;
    /**
     * Get an issue by ID
     */
    get(id: string): Promise<Issue | null>;
    /**
     * Update an existing issue
     */
    update(id: string, options: UpdateIssueOptions): Promise<Issue | null>;
    /**
     * Delete an issue
     */
    delete(id: string): Promise<boolean>;
    /**
     * List issues with filtering and sorting
     */
    list(options?: ListIssuesOptions): Promise<ListIssuesResult>;
    /**
     * Close an issue
     */
    close(id: string): Promise<Issue | null>;
    /**
     * Reopen an issue
     */
    reopen(id: string): Promise<Issue | null>;
    /**
     * Add labels to an issue
     */
    addLabels(id: string, labels: string[]): Promise<Issue | null>;
    /**
     * Remove labels from an issue
     */
    removeLabels(id: string, labels: string[]): Promise<Issue | null>;
}
/**
 * Create an issues manager for a project directory
 */
export declare function createIssuesManager(projectDir: string, fs?: FileSystem): IssuesManager;
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