#!/usr/bin/env node
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema, ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js';
import { search } from './tools/search.js';
import { findDecisions } from './tools/decisions.js';
import { findPatterns } from './tools/patterns.js';
import { findPitfalls } from './tools/pitfalls.js';
import { findStack } from './tools/stack.js';
import { register } from './tools/register.js';
import { index, indexAll } from './tools/index-tool.js';
import { getStatus } from './tools/status.js';
// Define available tools
const tools = [
    {
        name: 'gsd_memory_search',
        description: 'Search across all registered GSD projects for content matching a query. Returns enriched results with project, phase, and document type context.',
        inputSchema: {
            type: 'object',
            properties: {
                query: {
                    type: 'string',
                    description: 'The search query'
                },
                project: {
                    type: 'string',
                    description: 'Optional: limit search to a specific project'
                },
                limit: {
                    type: 'number',
                    description: 'Maximum number of results (default: 20)'
                }
            },
            required: ['query']
        }
    },
    {
        name: 'gsd_memory_decisions',
        description: 'Find decisions made across GSD projects. Searches KEY-DECISIONS from SUMMARY.md frontmatter and Key Decisions tables from PROJECT.md.',
        inputSchema: {
            type: 'object',
            properties: {
                query: {
                    type: 'string',
                    description: 'Optional: filter decisions by keyword'
                },
                project: {
                    type: 'string',
                    description: 'Optional: limit to a specific project'
                },
                tags: {
                    type: 'array',
                    items: { type: 'string' },
                    description: 'Optional: filter by tags'
                },
                limit: {
                    type: 'number',
                    description: 'Maximum number of results (default: 50)'
                }
            }
        }
    },
    {
        name: 'gsd_memory_patterns',
        description: 'Find patterns established across GSD projects. Extracts PATTERNS-ESTABLISHED from SUMMARY.md frontmatter.',
        inputSchema: {
            type: 'object',
            properties: {
                query: {
                    type: 'string',
                    description: 'Optional: filter patterns by keyword'
                },
                project: {
                    type: 'string',
                    description: 'Optional: limit to a specific project'
                },
                tags: {
                    type: 'array',
                    items: { type: 'string' },
                    description: 'Optional: filter by tags'
                },
                limit: {
                    type: 'number',
                    description: 'Maximum number of results (default: 50)'
                }
            }
        }
    },
    {
        name: 'gsd_memory_pitfalls',
        description: 'Find documented pitfalls from RESEARCH.md files. Includes what went wrong, causes, and prevention strategies.',
        inputSchema: {
            type: 'object',
            properties: {
                query: {
                    type: 'string',
                    description: 'Optional: filter pitfalls by keyword'
                },
                project: {
                    type: 'string',
                    description: 'Optional: limit to a specific project'
                },
                domain: {
                    type: 'string',
                    description: 'Optional: filter by technology domain'
                },
                limit: {
                    type: 'number',
                    description: 'Maximum number of results (default: 50)'
                }
            }
        }
    },
    {
        name: 'gsd_memory_stack',
        description: 'Find tech stack entries across GSD projects. Extracts from SUMMARY.md (tech-stack.added) and RESEARCH.md (standard stack tables).',
        inputSchema: {
            type: 'object',
            properties: {
                query: {
                    type: 'string',
                    description: 'Optional: filter by library name or purpose'
                },
                project: {
                    type: 'string',
                    description: 'Optional: limit to a specific project'
                },
                limit: {
                    type: 'number',
                    description: 'Maximum number of results (default: 100)'
                }
            }
        }
    },
    {
        name: 'gsd_memory_register',
        description: 'Register a project with GSD memory. Creates a QMD collection if QMD is available.',
        inputSchema: {
            type: 'object',
            properties: {
                path: {
                    type: 'string',
                    description: 'Path to the project root (must contain .planning directory)'
                },
                name: {
                    type: 'string',
                    description: 'Optional: project name (defaults to directory name)'
                }
            },
            required: ['path']
        }
    },
    {
        name: 'gsd_memory_index',
        description: 'Trigger indexing/update for a project. Updates QMD collection if available, otherwise marks project as indexed for grep fallback.',
        inputSchema: {
            type: 'object',
            properties: {
                project: {
                    type: 'string',
                    description: 'Project name to index'
                },
                path: {
                    type: 'string',
                    description: 'Alternative: project path to index'
                }
            }
        }
    },
    {
        name: 'gsd_memory_status',
        description: 'Show status of GSD memory system: QMD availability, registered projects, document counts.',
        inputSchema: {
            type: 'object',
            properties: {}
        }
    }
];
// Create server instance
const server = new Server({
    name: 'gsd-memory',
    version: '1.0.0'
}, {
    capabilities: {
        tools: {}
    }
});
// Handle list tools request
server.setRequestHandler(ListToolsRequestSchema, async () => ({
    tools
}));
// Handle tool calls
server.setRequestHandler(CallToolRequestSchema, async (request) => {
    const { name, arguments: args } = request.params;
    try {
        let result;
        switch (name) {
            case 'gsd_memory_search':
                result = await search({
                    query: args?.query,
                    project: args?.project,
                    limit: args?.limit
                });
                break;
            case 'gsd_memory_decisions':
                result = await findDecisions({
                    query: args?.query,
                    project: args?.project,
                    tags: args?.tags,
                    limit: args?.limit
                });
                break;
            case 'gsd_memory_patterns':
                result = await findPatterns({
                    query: args?.query,
                    project: args?.project,
                    tags: args?.tags,
                    limit: args?.limit
                });
                break;
            case 'gsd_memory_pitfalls':
                result = await findPitfalls({
                    query: args?.query,
                    project: args?.project,
                    domain: args?.domain,
                    limit: args?.limit
                });
                break;
            case 'gsd_memory_stack':
                result = await findStack({
                    query: args?.query,
                    project: args?.project,
                    limit: args?.limit
                });
                break;
            case 'gsd_memory_register':
                result = await register({
                    path: args?.path,
                    name: args?.name
                });
                break;
            case 'gsd_memory_index':
                if (args?.project || args?.path) {
                    result = await index({
                        project: args?.project,
                        path: args?.path
                    });
                }
                else {
                    result = await indexAll();
                }
                break;
            case 'gsd_memory_status':
                result = await getStatus();
                break;
            default:
                return {
                    content: [
                        {
                            type: 'text',
                            text: `Unknown tool: ${name}`
                        }
                    ],
                    isError: true
                };
        }
        return {
            content: [
                {
                    type: 'text',
                    text: JSON.stringify(result, null, 2)
                }
            ]
        };
    }
    catch (error) {
        return {
            content: [
                {
                    type: 'text',
                    text: `Error: ${error instanceof Error ? error.message : String(error)}`
                }
            ],
            isError: true
        };
    }
});
// Start the server
async function main() {
    const transport = new StdioServerTransport();
    await server.connect(transport);
    console.error('GSD Memory MCP server started');
}
main().catch((error) => {
    console.error('Fatal error:', error);
    process.exit(1);
});
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