// ============================================================================
// TINDER PLATFORM ADAPTER
// ============================================================================
//
// Tinder uses a REST API at api.gotinder.com.
// Auth: x-auth-token header (extracted from browser session).
//
// Write capability is feasible — POST to /user/matches/{id} with the
// x-auth-token is indistinguishable from the user sending a message.
//
// Verified: 2026-06-19 via HAR capture on tinder.com
// ============================================================================

import type {
  PlatformAdapter,
  ApiEndpoint,
  Conversation,
  Message,
  Participant,
} from "../index.js";

// ── Raw API Types ─────────────────────────────────────────────────────────

export interface TinderMatchesResponse {
  data: {
    matches: TinderRawMatch[];
  };
}

export interface TinderRawMatch {
  _id: string;
  /** Whether there are unread messages */
  seen: { match_seen: boolean };
  /** The other person */
  person: {
    _id: string;
    name: string;
    bio?: string;
    photos: Array<{
      url: string;
      processedFiles: Array<{ url: string; width: number; height: number }>;
    }>;
  };
  messages: TinderRawMessage[];
  /** ISO date of last activity */
  last_activity_date: string;
  /** Message count */
  message_count: number;
}

export interface TinderRawMessage {
  _id: string;
  match_id: string;
  to: string;
  from: string;
  message: string;
  sent_date: string; // ISO date
  timestamp: number; // epoch ms
}

// ── Normalization ─────────────────────────────────────────────────────────

export function normalizeConversation(
  match: TinderRawMatch,
): Conversation {
  const photo = match.person.photos[0]?.processedFiles?.find(
    (f) => f.width <= 172,
  ) ?? match.person.photos[0]?.processedFiles?.[0];

  const participant: Participant = {
    id: match.person._id,
    name: match.person.name,
    avatarUrl: photo?.url ?? match.person.photos[0]?.url,
  };

  const lastMsg = match.messages[0];
  const lastMessage: Message | null = lastMsg
    ? {
        id: lastMsg._id,
        senderId: lastMsg.from,
        text: lastMsg.message,
        timestamp: lastMsg.sent_date,
        type: "text",
      }
    : null;

  return {
    platform: "tinder",
    conversationId: match._id,
    conversationType: "dm",
    name: match.person.name,
    participants: [participant],
    lastMessage,
    lastActivityAt: match.last_activity_date,
    unreadCount: match.seen?.match_seen ? 0 : 1,
  };
}

export function normalizeMessage(msg: TinderRawMessage): Message {
  return {
    id: msg._id,
    senderId: msg.from,
    text: msg.message,
    timestamp: msg.sent_date,
    type: "text",
  };
}

// ── Adapter Definition ────────────────────────────────────────────────────

const listConversations: ApiEndpoint = {
  name: "matches (v2)",
  method: "GET",
  urlTemplate:
    "https://api.gotinder.com/v2/matches?locale=en&count=60&message=1&is_tinder_u=false",
  headers: {
    "x-auth-token": "{authToken}",
    platform: "web",
  },
  description:
    "Fetch matches with messages. count=60 is max per page. " +
    "message=1 filters to only matches with messages.",
  rateLimiting:
    "Medium risk. Tinder rate limits are moderate. Don't exceed " +
    "one call per 30 seconds.",
  verification: {
    status: "live_verified",
    lastChecked: "2026-06-19",
    source: "hydra_runtime",
    notes: "Hydra extension has used this REST path for matches and inline messages.",
  },
};

const fetchMessages: ApiEndpoint = {
  name: "match messages",
  method: "GET",
  urlTemplate:
    "https://api.gotinder.com/v2/matches/{matchId}/messages?locale=en&count=100",
  headers: {
    "x-auth-token": "{authToken}",
    platform: "web",
  },
  description:
    "Fetch messages for a specific match. count=100 is max per page.",
  rateLimiting:
    "Space 1-3 seconds apart. Max 10 threads per sync.",
  verification: {
    status: "documented",
    lastChecked: "2026-06-19",
    source: "manual_capture",
    notes: "Documented REST path; Tinder match list often already includes recent messages when message=1.",
  },
};

const sendMessage: ApiEndpoint = {
  name: "send message",
  method: "POST",
  urlTemplate: "https://api.gotinder.com/user/matches/{matchId}",
  headers: {
    "x-auth-token": "{authToken}",
    "content-type": "application/json",
    platform: "web",
  },
  bodyTemplate: {
    message: "{messageText}",
  },
  description:
    "Send a message to a match. The x-auth-token from the browser session " +
    "makes this indistinguishable from the user sending a message.",
  rateLimiting:
    "Use sparingly. One message at a time. Draft/approval pattern recommended.",
  verification: {
    status: "documented",
    lastChecked: "2026-06-19",
    source: "manual_capture",
    notes: "Known feasible from web API shape; keep behind explicit approval before product use.",
  },
};

export const tinderAdapter: PlatformAdapter = {
  platform: "tinder",
  name: "Tinder",
  color: "#FF6B6B",
  emoji: "🔥",

  auth: {
    requiredTokens: ["authToken"],
    extractionMethod:
      "Content script on *.tinder.com extracts the x-auth-token from " +
      "XHR requests in the page context, or from localStorage.",
    sources: [
      {
        type: "local_storage",
        name: "authToken",
        selector: "TinderWeb/APIToken",
        description:
          "The x-auth-token. Found in localStorage under TinderWeb/APIToken " +
          "or captured from outgoing XHR requests.",
      },
    ],
  },

  endpoints: {
    listConversations,
    fetchMessages,
    sendMessage,
  },

  antiDetection: {
    minDelayMs: 1000,
    maxDelayMs: 3000,
    maxMessageThreads: 10,
    notes:
      "Tinder's detection is moderate. The main risk is volume — " +
      "fetching too many matches too fast. The write API (sendMessage) " +
      "should only be used through a draft/approval pattern.",
  },

  buildDeepLink: (conv) => {
    return `https://tinder.com/app/messages/${conv.conversationId}`;
  },

  lastVerified: "2026-06-19",
  changelog: [
    {
      date: "2026-06-19",
      description: "Initial adapter. REST API verified for matches + messages + send.",
    },
  ],
};