/**
 * Reginald's tool surface. v0 ships the one read tool (`query_project`); the
 * three write tools (capture_work, apply_changes, record_directive) layer on
 * later against the same loop. Few, fat tools so a small local model survives
 * with one thing to reach for (docs/agent-tools.md).
 */

import type { ToolDecl } from './chat-client.js'

export const QUERY_PROJECT_TOOL: ToolDecl = {
  name: 'query_project',
  description:
    'Read the current project state. A `view` selects the shape; deterministic code (scheduler, ' +
    'lifecycle inference, calibration) backs every number — you report it, you never compute it.',
  parameters: {
    type: 'object',
    properties: {
      view: {
        type: 'string',
        enum: ['focus', 'board', 'calibration', 'issue', 'search'],
        description:
          'focus = Now/Next/Later; board = issues by lifecycle column; calibration = estimate-vs-actual; ' +
          'issue = one issue (needs filters.issueId); search = issues matching filters.query.',
      },
      filters: {
        type: 'object',
        properties: {
          issueId: { type: 'number' },
          query: { type: 'string' },
          limit: { type: 'number' },
        },
      },
    },
    required: ['view'],
  },
}

export const PROPOSE_CHANGE_TOOL: ToolDecl = {
  name: 'propose_change',
  description:
    "Propose an estimate and/or priority change to an issue. This does NOT apply anything — it shows the " +
    'human a diff to approve. Use it whenever the user asks to re-estimate or reprioritize. After calling it, ' +
    "tell the user you've *proposed* the change for approval — never say it is done.",
  parameters: {
    type: 'object',
    properties: {
      issue: { type: 'number', description: 'the issue number to change' },
      estimate: { type: 'string', enum: ['est/1d', 'est/2d', 'est/3d', 'est/5d', 'est/8d'] },
      priority: { type: 'string', enum: ['p/1', 'p/2', 'p/3', 'p/4'] },
    },
    required: ['issue'],
  },
}

export const RECORD_DIRECTIVE_TOOL: ToolDecl = {
  name: 'record_directive',
  description:
    'Log a standing instruction from the PM to the durable directive ledger — a reprioritization, ' +
    'a re-estimate policy, a deadline, a scope or capacity call, or a plain note. Use it when the user ' +
    'states intent that should persist ("pilots come first", "freeze scope for beta"). This records the ' +
    'intent verbatim; the actual issue edits still go through propose_change.',
  parameters: {
    type: 'object',
    properties: {
      kind: { type: 'string', enum: ['reprioritize', 'reestimate', 'set-deadline', 'scope', 'capacity', 'note'] },
      quote: { type: 'string', description: "the PM's own words, stored verbatim" },
      target: {
        type: 'object',
        properties: {
          issue: { type: 'number' },
          milestone: { type: 'number' },
          member: { type: 'string' },
        },
      },
      rationale: { type: 'string', description: 'why (optional)' },
    },
    required: ['kind', 'quote'],
  },
}

export const REGINALD_TOOLS: ToolDecl[] = [QUERY_PROJECT_TOOL, PROPOSE_CHANGE_TOOL, RECORD_DIRECTIVE_TOOL]

export const REGINALD_SYSTEM = [
  'You are Reginald, the calm, dry project manager inside CommiTea — a tool that runs projects on Gitea.',
  'Call query_project to ground every answer in the real project; never invent issues, numbers, or dates.',
  'The scheduler and forecasts are deterministic code — report their output, do not recompute it.',
  'To change an estimate or priority, call propose_change — it shows the human a diff to approve.',
  'When the PM states standing intent ("pilots first", "freeze scope"), call record_directive to log it.',
  'Never claim a change is applied; you propose, the human approves. Forecasts are ranges, never single dates.',
  'Refer to issues as #<number>. Be brief and plain — a sentence or two. No preamble, no bullet dumps.',
].join(' ')