import { hostApiFetch, createHostEventSource, ensureHostApiToken } from './host-api';
import type {
  TeacherModelCatalog,
  TeacherAvailability,
  TeacherCheckInInput,
  TeacherCheckInResult,
  TeacherCatalog,
  TeacherDefinition,
  TeacherSend,
  TeacherTopic,
  TeacherTopicList,
  TeacherConversationView,
} from '../../shared/coding-teacher';
export interface TeacherCatalogState {
  config: TeacherAvailability & { definition: TeacherDefinition | null };
  catalog: TeacherCatalog;
}
export function teacherTopicsPath(projectId: string) {
  return projectId === 'preview'
    ? '/api/coding/teacher-preview/topics'
    : `/api/coding/projects/${encodeURIComponent(projectId)}/agent-topics`;
}
export function teacherConversationsPath(projectId: string) {
  return `/api/coding/projects/${encodeURIComponent(projectId)}/agent-conversations`;
}
/** Read old locally-generated friend histories without copying or rebinding them. */
export function legacyTopicBase(base: string, legacyFriend: boolean) {
  return legacyFriend ? base.replace(/agent-topics$/, 'friend-topics') : base;
}
export const teacherApi = {
  models: (runtime: 'local' | 'yuxi') => hostApiFetch<TeacherModelCatalog>('/api/coding/teacher/models?runtime=' + runtime),
  legacyHistory: (projectId: string) => hostApiFetch<TeacherTopicList>(`/api/coding/projects/${encodeURIComponent(projectId)}/agent-history`),
  legacyRead: (projectId: string, item: TeacherTopicList['items'][number]) => hostApiFetch<TeacherTopic>(
    `/api/coding/projects/${encodeURIComponent(projectId)}/agent-history/${encodeURIComponent(item.id)}?source=${encodeURIComponent(item.legacySourceId ?? 'project')}&friend=${item.legacyRole === 'friend'}`),
  seenConversation: (projectId: string, agentId: string, requestId: string) => hostApiFetch<TeacherTopic>(
    teacherConversationsPath(projectId) + '/' + encodeURIComponent(agentId) + '/seen', { method: 'POST', body: JSON.stringify({ requestId }) }),
  conversation: (projectId: string, agentId: string, before?: string) => hostApiFetch<TeacherConversationView>(
    teacherConversationsPath(projectId) + '/' + encodeURIComponent(agentId) + (before ? '?before=' + encodeURIComponent(before) : '')),
  sendConversation: (projectId: string, agentId: string, input: TeacherSend) => hostApiFetch<TeacherTopic>(
    teacherConversationsPath(projectId) + '/' + encodeURIComponent(agentId) + '/messages', { method: 'POST', body: JSON.stringify(input) }),
  catalog: () => hostApiFetch<TeacherCatalog>('/api/coding/teacher/teachers'),
  catalogRevision: () => hostApiFetch<{ revision: number }>('/api/coding/teacher/teachers/revision'),
  checkIn: (projectId: string, input: TeacherCheckInInput) =>
    hostApiFetch<TeacherCheckInResult>(`/api/coding/projects/${encodeURIComponent(projectId)}/teacher-check-in`, {
      method: 'POST',
      body: JSON.stringify(input),
    }),
  config: () =>
    hostApiFetch<TeacherAvailability & { definition: TeacherDefinition | null }>(
      '/api/coding/teacher/config'
    ),
  preview: (draftRevision: number) =>
    hostApiFetch<{ payload: TeacherDefinition; draft_revision: number }>(
      '/api/coding/teacher-preview?draftRevision=' + draftRevision
    ),
  list: (base: string) => hostApiFetch<TeacherTopicList>(base),
  create: (base: string, draftRevision?: number, sampleContext?: string, teacherVersion?: number) =>
    hostApiFetch<TeacherTopic>(base, {
      method: 'POST',
      body: JSON.stringify({ draftRevision, sampleContext, teacherVersion }),
    }),
  read: (base: string, id: string, select = true) =>
    hostApiFetch<TeacherTopic>(base + '/' + encodeURIComponent(id) + (select ? '' : '?select=false')),
  send: (base: string, id: string, input: TeacherSend) =>
    hostApiFetch<TeacherTopic>(base + '/' + encodeURIComponent(id) + '/messages', {
      method: 'POST',
      body: JSON.stringify(input),
    }),
  cancel: (base: string, id: string, requestId: string) =>
    hostApiFetch<TeacherTopic>(
      base +
        '/' +
        encodeURIComponent(id) +
        '/requests/' +
        encodeURIComponent(requestId) +
        '/cancel',
      { method: 'POST' }
    ),
  save: (base: string, id: string) =>
    hostApiFetch<TeacherTopic>(base + '/' + encodeURIComponent(id) + '/save', { method: 'POST' }),
  async events(base: string, id: string) {
    await ensureHostApiToken();
    return createHostEventSource(base + '/' + encodeURIComponent(id) + '/events');
  },
};