import type { McpToolCatalogue } from "@/domain";

/**
 * Presentational grouping of the MCP tool catalogue (ticket #82).
 *
 * Purely a frontend display concern: which domain a tool "belongs to" for the
 * grouped/collapsible editor, and its short French label. The read/write
 * classification stays backend-canonical — always read from the
 * {@link McpToolCatalogue} the API returns, never re-derived here.
 */

export interface McpToolGroupDef {
  id: string;
  label: string;
  description?: string;
  tools: string[];
}
type Tr = (french: string, english: string) => string;
const fr: Tr = (french) => french;

/** Domain groups, in display order (carnet #82 — Conception UX/F). */
export const MCP_TOOL_GROUPS: McpToolGroupDef[] = [
  {
    id: "workspace",
    label: "Outils du projet",
    description: "Permet à l’agent d’explorer, rechercher et lire les fichiers du projet.",
    tools: [
      "idea_workspace_map",
      "idea_workspace_list",
      "idea_workspace_read",
      "idea_workspace_search",
    ],
  },
  {
    id: "crossProject",
    label: "IdeA inter-projets",
    tools: [
      "idea_project_list",
      "idea_project_read_context",
      "idea_project_list_agents",
      "idea_project_ask_agent",
      "idea_project_cancel_agent",
    ],
  },
  {
    id: "readProject",
    label: "Lecture projet",
    tools: [
      "idea_list_agents",
      "idea_context_read",
      "idea_memory_read",
      "idea_skill_read",
      "idea_workstate_read",
    ],
  },
  {
    id: "readTickets",
    label: "Lecture tickets",
    tools: [
      "idea_ticket_read",
      "idea_ticket_list",
      "idea_ticket_read_carnet",
      "idea_sprint_list",
    ],
  },
  {
    id: "delegation",
    label: "Délégation agents",
    tools: [
      "idea_ask_agent",
      "idea_ask_agents",
      "idea_launch_agent",
      "idea_stop_agent",
    ],
  },
  {
    id: "contextMemory",
    label: "Contexte et mémoire",
    tools: ["idea_update_context", "idea_context_propose", "idea_memory_write"],
  },
  {
    id: "tickets",
    label: "Tickets",
    tools: [
      "idea_ticket_create",
      "idea_ticket_update",
      "idea_ticket_update_status",
      "idea_ticket_update_priority",
      "idea_ticket_update_carnet",
      "idea_ticket_link",
      "idea_ticket_unlink",
    ],
  },
  {
    id: "work",
    label: "Travail et exécution",
    tools: ["idea_run_in_background", "idea_workstate_set"],
  },
  {
    id: "skills",
    label: "Skills",
    tools: ["idea_create_skill"],
  },
];

/** Short, human French label per exact MCP tool name. */
export const MCP_TOOL_LABELS: Record<string, string> = {
  idea_workspace_map: "Cartographier le projet",
  idea_workspace_list: "Lister les éléments du projet",
  idea_workspace_read: "Lire un élément du projet",
  idea_workspace_search: "Rechercher dans le projet",
  idea_project_list: "Lister les projets IdeA",
  idea_project_read_context: "Lire le contexte d'un autre projet",
  idea_project_list_agents: "Lister les agents d'un autre projet",
  idea_project_ask_agent: "Demander à un agent d'un autre projet",
  idea_project_cancel_agent: "Annuler une demande inter-projet",
  idea_list_agents: "Lister les agents",
  idea_context_read: "Lire le contexte d'un agent",
  idea_memory_read: "Lire la mémoire projet",
  idea_skill_read: "Lire un skill",
  idea_workstate_read: "Lire l'état de travail",
  idea_ticket_read: "Lire un ticket",
  idea_ticket_list: "Lister les tickets",
  idea_ticket_read_carnet: "Lire le carnet d'un ticket",
  idea_sprint_list: "Lister les sprints",
  idea_ask_agent: "Déléguer à un agent",
  idea_ask_agents: "Solliciter plusieurs agents",
  idea_launch_agent: "Lancer un agent",
  idea_stop_agent: "Arrêter un agent",
  idea_update_context: "Modifier le contexte d'un agent",
  idea_context_propose: "Proposer un contexte",
  idea_memory_write: "Écrire la mémoire projet",
  idea_workstate_set: "Écrire l'état de travail",
  idea_create_skill: "Créer un skill",
  idea_ticket_create: "Créer un ticket",
  idea_ticket_update: "Modifier un ticket",
  idea_ticket_update_status: "Modifier le statut d'un ticket",
  idea_ticket_update_priority: "Modifier la priorité d'un ticket",
  idea_ticket_update_carnet: "Modifier le carnet d'un ticket",
  idea_ticket_link: "Lier des tickets",
  idea_ticket_unlink: "Délier des tickets",
  idea_run_in_background: "Exécuter une commande en arrière-plan",
};

const MCP_TOOL_LABELS_EN: Record<string, string> = {
  idea_workspace_map: "Map the project", idea_workspace_list: "List project items", idea_workspace_read: "Read a project item", idea_workspace_search: "Search the project",
  idea_project_list: "List IdeA projects", idea_project_read_context: "Read another project's context", idea_project_list_agents: "List agents in another project", idea_project_ask_agent: "Ask an agent in another project", idea_project_cancel_agent: "Cancel a cross-project request",
  idea_list_agents: "List agents", idea_context_read: "Read an agent's context", idea_memory_read: "Read project memory", idea_skill_read: "Read a skill", idea_workstate_read: "Read work state", idea_ticket_read: "Read a ticket", idea_ticket_list: "List tickets", idea_ticket_read_carnet: "Read ticket notes", idea_sprint_list: "List sprints",
  idea_ask_agent: "Delegate to an agent", idea_ask_agents: "Ask several agents", idea_launch_agent: "Launch an agent", idea_stop_agent: "Stop an agent", idea_update_context: "Update an agent's context", idea_context_propose: "Propose context", idea_memory_write: "Write project memory", idea_workstate_set: "Write work state", idea_create_skill: "Create a skill",
  idea_ticket_create: "Create a ticket", idea_ticket_update: "Update a ticket", idea_ticket_update_status: "Update ticket status", idea_ticket_update_priority: "Update ticket priority", idea_ticket_update_carnet: "Update ticket notes", idea_ticket_link: "Link tickets", idea_ticket_unlink: "Unlink tickets", idea_run_in_background: "Run a command in the background",
};

export function mcpToolGroupLabel(group: McpToolGroupDef, tr: Tr = fr): string {
  const english: Record<string, string> = { workspace: "Project tools", crossProject: "IdeA cross-project", readProject: "Project read", readTickets: "Ticket read", delegation: "Agent delegation", contextMemory: "Context and memory", tickets: "Tickets", work: "Work and execution", skills: "Skills", other: "Other" };
  return tr(group.label, english[group.id] ?? group.label);
}

export function mcpToolGroupDescription(
  group: McpToolGroupDef,
  tr: Tr = fr,
): string | undefined {
  if (!group.description) return undefined;
  if (group.id === "workspace") {
    return tr(
      group.description,
      "Lets the agent explore, search, and read project files.",
    );
  }
  return group.description;
}

/** Short human label for `tool`, falling back to the exact name if unmapped. */
export function mcpToolLabel(tool: string, tr: Tr = fr): string {
  const french = MCP_TOOL_LABELS[tool];
  return french ? tr(french, MCP_TOOL_LABELS_EN[tool] ?? french) : tool;
}

/** The group a tool belongs to, or `undefined` if not locally mapped. */
export function mcpToolGroupId(tool: string): string | undefined {
  return MCP_TOOL_GROUPS.find((group) => group.tools.includes(tool))?.id;
}

/**
 * Builds the exhaustive presentation groups from the backend catalogue.
 * Local groups only choose placement/labels; every catalogued tool remains
 * configurable, with unmapped names collected under the visible fallback.
 */
export function mcpToolGroupsForCatalogue(
  catalogue: McpToolCatalogue,
): McpToolGroupDef[] {
  const catalogued = Array.from(
    new Set([...catalogue.readOnlyTools, ...catalogue.writeActionTools]),
  );
  const cataloguedSet = new Set(catalogued);
  const mapped = new Set<string>();
  const groups = MCP_TOOL_GROUPS.flatMap((group) => {
    const tools = group.tools.filter((tool) => cataloguedSet.has(tool));
    tools.forEach((tool) => mapped.add(tool));
    return tools.length > 0 ? [{ ...group, tools }] : [];
  });
  const otherTools = catalogued.filter((tool) => !mapped.has(tool));
  return otherTools.length > 0
    ? [...groups, { id: "other", label: "Autres", tools: otherTools }]
    : groups;
}