import {
  PLUGIN_CAPABILITY_DESCRIPTIONS,
  type PluginCapabilityKind
} from '../../shared/plugins/plugin-capabilities'
import { needsReconsent } from '../../shared/plugins/plugin-consent-state'
import { pluginPanelTabKey } from '../../shared/plugins/plugin-manifest'
import type { PluginLockfile } from '../../shared/plugins/plugin-install-lockfile'
import { isInvalidDiscoveredPlugin } from './plugin-discovery'
import type { PluginService } from './plugin-service'
import { listPluginVmRecipeCommands } from '../../shared/plugins/plugin-vm-recipe-artifact'

/**
 * Wire projection of installed plugins for the renderer and serve RPC.
 * `invalid` = unreadable/failed manifest; `pending` = awaiting (re-)consent;
 * `idle` = enabled with no worker running (lazy); `restarting` = waiting for
 * supervised backoff; `errored` = crashed past the budget or failed to activate.
 */

export type PluginListPanelEntry = {
  id: string
  title: string
  icon?: string
  tabKey: `plugin:${string}`
}

export type PluginListStatus =
  | 'running'
  | 'restarting'
  | 'idle'
  | 'pending'
  | 'disabled'
  | 'errored'
  | 'invalid'

export type PluginListEntry = {
  pluginKey: string
  /** Opaque identity of the exact capabilities and worker tier shown for review. */
  consentFingerprint: string | null
  name: string
  version: string
  publisher: string
  description?: string
  status: PluginListStatus
  needsReconsent: boolean
  error?: string
  isDev: boolean
  capabilities: { kind: PluginCapabilityKind; description: string }[]
  panels: PluginListPanelEntry[]
  commands: { id: string; title: string }[]
  hasWorker: boolean
  hasSkills: boolean
  vmRecipes: {
    id: string
    name: string
    description?: string
    commands: { phase: 'create' | 'suspend' | 'resume' | 'destroy'; command: string }[]
  }[]
  restarts: number
  source?: {
    kind: 'local-path' | 'git'
    reference: string
    resolvedCommit: string | null
    contentHash: string
  }
}

export function buildPluginList(service: PluginService, lock: PluginLockfile): PluginListEntry[] {
  const consents = {
    pluginConsents: service.options.getPluginConsents(),
    disabledPlugins: service.options.getDisabledPlugins()
  }
  return service.getDiscovered().map((plugin, index) => {
    if (isInvalidDiscoveredPlugin(plugin)) {
      // Why: invalid dev paths can contain private absolute desktop paths;
      // never project those as identity over desktop/serve transports.
      const fallbackKey = plugin.pluginKey ?? `invalid-development-plugin-${index + 1}`
      return {
        pluginKey: fallbackKey,
        consentFingerprint: null,
        name: fallbackKey,
        version: '0.0.0',
        publisher: '',
        status: 'invalid' as const,
        needsReconsent: false,
        error: plugin.error,
        isDev: plugin.isDev,
        capabilities: [],
        panels: [],
        commands: [],
        hasWorker: false,
        hasSkills: false,
        vmRecipes: [],
        restarts: 0
      }
    }
    const activation = service.activationState(plugin)
    const worker = service.workerState(plugin.pluginKey)
    const activationError = service.activationError(plugin.pluginKey)
    let status: PluginListStatus
    if (activation === 'disabled') {
      status = 'disabled'
    } else if (activation === 'pending') {
      status = 'pending'
    } else if (worker.state === 'errored' || activationError) {
      status = 'errored'
    } else if (worker.state === 'restarting') {
      status = 'restarting'
    } else {
      status = worker.state === 'running' ? 'running' : 'idle'
    }
    const candidateLockEntry = lock.plugins[plugin.pluginKey]
    // Why: never show provenance for bytes other than the current executable
    // identity. Dev overrides execute outside the immutable installed tree and
    // must never inherit the shadowed install's pinned-source attribution.
    const lockEntry =
      candidateLockEntry &&
      !plugin.isDev &&
      plugin.contentHash !== null &&
      candidateLockEntry.contentHash === plugin.contentHash
        ? candidateLockEntry
        : undefined
    return {
      pluginKey: plugin.pluginKey,
      consentFingerprint: plugin.consentFingerprint,
      name: plugin.manifest.name,
      version: plugin.manifest.version,
      publisher: plugin.manifest.publisher,
      ...(plugin.manifest.description ? { description: plugin.manifest.description } : {}),
      status,
      needsReconsent: needsReconsent(plugin.pluginKey, plugin.consentFingerprint, consents),
      ...(status === 'errored'
        ? { error: activationError ?? 'plugin worker crashed repeatedly' }
        : {}),
      isDev: plugin.isDev,
      capabilities: plugin.manifest.capabilities.map((capability) => ({
        kind: capability.kind,
        description: PLUGIN_CAPABILITY_DESCRIPTIONS[capability.kind]
      })),
      panels: plugin.manifest.contributes.panels.map((panel) => ({
        id: panel.id,
        title: panel.title,
        ...(panel.icon ? { icon: panel.icon } : {}),
        tabKey: pluginPanelTabKey(plugin.pluginKey, panel.id)
      })),
      commands: plugin.manifest.contributes.commands.map((command) => ({
        id: command.id,
        title: command.title
      })),
      hasWorker: Boolean(plugin.manifest.main),
      hasSkills: plugin.manifest.contributes.skills.length > 0,
      vmRecipes: service.contentPacks.vmRecipes.preview(plugin.pluginKey).map(({ recipe }) => ({
        id: recipe.id,
        name: recipe.name,
        ...(recipe.description ? { description: recipe.description } : {}),
        commands: listPluginVmRecipeCommands(recipe)
      })),
      restarts: worker.restarts,
      ...(lockEntry
        ? {
            source: {
              kind: lockEntry.source.kind,
              reference:
                lockEntry.source.kind === 'git' ? lockEntry.source.url : lockEntry.source.path,
              resolvedCommit: lockEntry.resolvedCommit,
              contentHash: lockEntry.contentHash
            }
          }
        : {})
    }
  })
}