import { parse as parseYaml, stringify as stringifyYaml } from 'yaml';
import { z } from 'zod';
import { normalizeContextStoreBinding, } from '../context-store/index.js';
import { FileSystemUtils } from '../../utils/file-system.js';
export const WORKSPACE_METADATA_DIR_NAME = '.projectx-workspace';
export const WORKSPACE_VIEW_STATE_FILE_NAME = 'view.yaml';
export const WORKSPACE_CHANGES_DIR_NAME = 'changes';
export const WORKSPACE_CODE_WORKSPACE_EXTENSION = '.code-workspace';
export const WORKSPACE_SUPPORTED_OPENER_VALUES = [
    'codex-cli',
    'claude',
    'github-copilot',
    'editor',
];
export const WORKSPACE_AGENT_OPENER_IDS = [
    'codex-cli',
    'claude',
    'github-copilot',
];
export const WORKSPACE_EDITOR_OPENER_IDS = ['vscode'];
function joinWorkspacePath(basePath, ...segments) {
    return FileSystemUtils.joinPath(basePath, ...segments);
}
export function getWorkspaceMetadataDir(workspaceRoot) {
    return joinWorkspacePath(workspaceRoot, WORKSPACE_METADATA_DIR_NAME);
}
export function getWorkspaceViewStatePath(workspaceRoot) {
    return joinWorkspacePath(getWorkspaceMetadataDir(workspaceRoot), WORKSPACE_VIEW_STATE_FILE_NAME);
}
export function getWorkspaceChangesDir(workspaceRoot) {
    return joinWorkspacePath(workspaceRoot, WORKSPACE_CHANGES_DIR_NAME);
}
export function getWorkspaceCodeWorkspaceFileName(workspaceName) {
    validateWorkspaceName(workspaceName);
    return `${workspaceName}${WORKSPACE_CODE_WORKSPACE_EXTENSION}`;
}
export function getWorkspaceCodeWorkspacePath(workspaceRoot, workspaceName) {
    return joinWorkspacePath(workspaceRoot, getWorkspaceCodeWorkspaceFileName(workspaceName));
}
/**
 * @deprecated Managed workspaces no longer create portable ignore rules.
 * This compatibility shim remains for callers that still ask which ignore
 * patterns ProjectX owns for workspace-local generated files.
 */
export function getWorkspacePortableIgnorePatterns(_workspaceName) {
    return [];
}
function validateFolderStyleName(name, label) {
    if (name.length === 0) {
        throw new Error(`${label} must not be empty`);
    }
    if (name === '.' || name === '..') {
        throw new Error(`${label} must not be '${name}'`);
    }
    if (/[\\/]/u.test(name)) {
        throw new Error(`${label} must not contain path separators`);
    }
    return name;
}
export function validateWorkspaceName(name) {
    validateFolderStyleName(name, 'Workspace name');
    if (!/^[a-z0-9]+(?:-[a-z0-9]+)*$/u.test(name)) {
        throw new Error('Workspace name must be kebab-case with lowercase letters, numbers, and single hyphen separators');
    }
    return name;
}
export function validateWorkspaceLinkName(name) {
    return validateFolderStyleName(name, 'Workspace link name');
}
export function isValidWorkspaceName(name) {
    try {
        validateWorkspaceName(name);
        return true;
    }
    catch {
        return false;
    }
}
export function isValidWorkspaceLinkName(name) {
    try {
        validateWorkspaceLinkName(name);
        return true;
    }
    catch {
        return false;
    }
}
const ContextStoreSelectorSchema = z.union([
    z
        .object({
        kind: z.literal('registry'),
        id: z.string(),
    })
        .strict(),
    z
        .object({
        kind: z.literal('path'),
        path: z.string(),
        observed_id: z.string().optional(),
    })
        .strict(),
]);
const ContextStoreBindingSchema = z
    .object({
    id: z.string(),
    selector: ContextStoreSelectorSchema,
})
    .strict();
const WorkspaceInitiativeContextSchema = z
    .object({
    kind: z.literal('initiative'),
    store: ContextStoreBindingSchema,
    initiative: z
        .object({
        id: z.string(),
    })
        .strict(),
})
    .strict();
const WorkspaceContextSchema = WorkspaceInitiativeContextSchema;
const WorkspaceSkillStateSchema = z
    .object({
    selected_agents: z.array(z.string()),
    last_applied_profile: z.enum(['core', 'custom']).optional(),
    last_applied_delivery: z.enum(['both', 'skills', 'commands']).optional(),
    last_applied_workflow_ids: z.array(z.string()).optional(),
    last_applied_at: z.string().optional(),
})
    .strict();
const PreferredOpenerSchema = z
    .object({
    kind: z.enum(['agent', 'editor']),
    id: z.string(),
})
    .strict();
const ViewStateSchema = z
    .object({
    version: z.literal(1),
    name: z.string(),
    context: WorkspaceContextSchema.nullable(),
    links: z.record(z.string(), z.string().nullable()),
    preferred_opener: PreferredOpenerSchema.optional(),
    tools: z.array(z.string()).optional(),
    workspace_skills: WorkspaceSkillStateSchema.optional(),
})
    .strict();
function formatZodIssues(error) {
    return error.issues
        .map((issue) => {
        const location = issue.path.length > 0 ? issue.path.join('.') : 'root';
        return `${location}: ${issue.message}`;
    })
        .join('; ');
}
function parseYamlObject(content, label) {
    try {
        return parseYaml(content);
    }
    catch (error) {
        const message = error instanceof Error ? error.message : String(error);
        throw new Error(`Invalid ${label}: ${message}`);
    }
}
function assertValidMapKeys(keys, validator, label) {
    for (const key of keys) {
        try {
            validator(key);
        }
        catch (error) {
            const message = error instanceof Error ? error.message : String(error);
            throw new Error(`Invalid ${label} '${key}': ${message}`);
        }
    }
}
function formatSupportedOpenerValues() {
    return WORKSPACE_SUPPORTED_OPENER_VALUES.join(', ');
}
function normalizeWorkspaceAgentOpenerId(value) {
    if (value === 'codex') {
        return 'codex-cli';
    }
    if (isWorkspaceAgentOpenerId(value)) {
        return value;
    }
    return null;
}
export function isWorkspaceAgentOpenerId(value) {
    return WORKSPACE_AGENT_OPENER_IDS.includes(value);
}
export function isWorkspaceSupportedOpenerValue(value) {
    return WORKSPACE_SUPPORTED_OPENER_VALUES.includes(value);
}
export function parseWorkspacePreferredOpenerValue(value) {
    if (value === 'editor') {
        return {
            kind: 'editor',
            id: 'vscode',
        };
    }
    const agentId = normalizeWorkspaceAgentOpenerId(value);
    if (agentId) {
        return {
            kind: 'agent',
            id: agentId,
        };
    }
    throw new Error(`Unsupported workspace opener '${value}'. Supported values: ${formatSupportedOpenerValues()}`);
}
export function validateWorkspacePreferredOpener(opener) {
    if (opener.kind === 'editor' && opener.id === 'vscode') {
        return opener;
    }
    if (opener.kind === 'agent') {
        const agentId = normalizeWorkspaceAgentOpenerId(opener.id);
        if (agentId) {
            return {
                kind: 'agent',
                id: agentId,
            };
        }
    }
    throw new Error(`Unsupported workspace opener '${opener.kind}:${opener.id}'. Supported values: ${formatSupportedOpenerValues()}`);
}
function normalizeWorkspaceContextState(context) {
    return createWorkspaceInitiativeContext(normalizeContextStoreBinding(context.store), context.initiative.id);
}
function normalizeOptionalWorkspaceContextState(context) {
    return context ? normalizeWorkspaceContextState(context) : null;
}
export function createWorkspaceInitiativeContext(store, initiativeId) {
    if (initiativeId.length === 0) {
        throw new Error('Workspace initiative id must not be empty.');
    }
    return {
        kind: 'initiative',
        store: normalizeContextStoreBinding(store),
        initiative: {
            id: initiativeId,
        },
    };
}
export function getWorkspaceContextStoreId(context) {
    return context.store.id;
}
export function getWorkspaceContextStoreSelector(context) {
    return context.store.selector;
}
export function getWorkspaceContextInitiativeId(context) {
    return context.initiative.id;
}
export function parseWorkspaceViewState(content) {
    const raw = parseYamlObject(content, 'workspace state');
    const result = ViewStateSchema.safeParse(raw);
    if (!result.success) {
        throw new Error(`Invalid workspace state: ${formatZodIssues(result.error)}`);
    }
    validateWorkspaceName(result.data.name);
    assertValidMapKeys(Object.keys(result.data.links), validateWorkspaceLinkName, 'workspace link name');
    const preferredOpener = result.data.preferred_opener
        ? validateWorkspacePreferredOpener(result.data.preferred_opener)
        : undefined;
    return {
        version: 1,
        name: result.data.name,
        context: normalizeOptionalWorkspaceContextState(result.data.context),
        links: result.data.links,
        ...(preferredOpener ? { preferred_opener: preferredOpener } : {}),
        ...(result.data.tools ? { tools: result.data.tools } : {}),
        ...(result.data.workspace_skills
            ? { workspace_skills: result.data.workspace_skills }
            : {}),
    };
}
export function serializeWorkspaceViewState(state) {
    validateWorkspaceName(state.name);
    assertValidMapKeys(Object.keys(state.links), validateWorkspaceLinkName, 'workspace link name');
    for (const [linkName, localPath] of Object.entries(state.links)) {
        if (localPath !== null && typeof localPath !== 'string') {
            throw new Error(`Invalid workspace link '${linkName}': path must be a string or null`);
        }
    }
    const preferredOpener = state.preferred_opener
        ? validateWorkspacePreferredOpener(state.preferred_opener)
        : undefined;
    return stringifyYaml({
        version: 1,
        name: state.name,
        context: state.context ? normalizeWorkspaceContextState(state.context) : null,
        links: state.links,
        ...(preferredOpener ? { preferred_opener: preferredOpener } : {}),
        ...(state.tools ? { tools: state.tools } : {}),
        ...(state.workspace_skills ? { workspace_skills: state.workspace_skills } : {}),
    });
}
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