/**
 * Donation & Supporter System for web-search
 * 
 * Manages:
 * - Supporter recognition
 * - Donation prompts (non-intrusive)
 * - Credits display
 */

import * as fs from "fs";
import { join } from "path";

// ---------------------------------------------------------------------------
// Supporter Data
// ---------------------------------------------------------------------------

interface SupporterData {
  founding: string[];
  pizza: string[];
  lunch: string[];
  coffee: string[];
  stats: {
    totalDonations: number;
    totalSupporters: number;
    lastUpdated: string;
  };
}

// Default supporters file (shipped with plugin)
let supportersData: SupporterData = {
  founding: [],
  pizza: [],
  lunch: [],
  coffee: [],
  stats: {
    totalDonations: 0,
    totalSupporters: 0,
    lastUpdated: new Date().toISOString().split("T")[0],
  },
};

// Try to load supporters data
try {
  const dataPath = join(__dirname, "supporters.json");
  if (fs.existsSync(dataPath)) {
    supportersData = JSON.parse(fs.readFileSync(dataPath, "utf-8"));
  }
} catch {
  // Use defaults
}

// ---------------------------------------------------------------------------
// Donation Tiers
// ---------------------------------------------------------------------------

export type DonationTier = "founding" | "pizza" | "lunch" | "coffee";

const TIER_EMOJI: Record<DonationTier, string> = {
  founding: "🏆",
  pizza: "🍕",
  lunch: "🍔",
  coffee: "☕",
};

const TIER_NAMES: Record<DonationTier, string> = {
  founding: "Founding Member",
  pizza: "Pizza Tier",
  lunch: "Lunch Tier",
  coffee: "Coffee Tier",
};

const TIER_AMOUNTS: Record<DonationTier, string> = {
  founding: "$50+",
  pizza: "$25",
  lunch: "$10",
  coffee: "$3",
};

// ---------------------------------------------------------------------------
// Supporter Functions
// ---------------------------------------------------------------------------

export function isSupporter(name: string): boolean {
  const allSupporters = [
    ...supportersData.founding,
    ...supportersData.pizza,
    ...supportersData.lunch,
    ...supportersData.coffee,
  ];
  return allSupporters.some(
    (s) => s.toLowerCase() === name.toLowerCase()
  );
}

export function getSupporterTier(name: string): DonationTier | null {
  if (supportersData.founding.some((s) => s.toLowerCase() === name.toLowerCase())) return "founding";
  if (supportersData.pizza.some((s) => s.toLowerCase() === name.toLowerCase())) return "pizza";
  if (supportersData.lunch.some((s) => s.toLowerCase() === name.toLowerCase())) return "lunch";
  if (supportersData.coffee.some((s) => s.toLowerCase() === name.toLowerCase())) return "coffee";
  return null;
}

export function getSupporterMessage(name: string): string | null {
  const tier = getSupporterTier(name);
  if (!tier) return null;
  
  const emoji = TIER_EMOJI[tier];
  return `${emoji} Thanks for supporting web-search, ${name}! You're a ${TIER_NAMES[tier]}.`;
}

export function getStats() {
  return {
    total: supportersData.stats.totalSupporters,
    founding: supportersData.founding.length,
    pizza: supportersData.pizza.length,
    lunch: supportersData.lunch.length,
    coffee: supportersData.coffee.length,
  };
}

// ---------------------------------------------------------------------------
// Donation Prompt (Non-intrusive)
// ---------------------------------------------------------------------------

// Track when we last showed the prompt
let lastPromptTime = 0;
const PROMPT_COOLDOWN = 24 * 60 * 60 * 1000; // 24 hours

export function shouldShowDonationPrompt(): boolean {
  const now = Date.now();
  if (now - lastPromptTime < PROMPT_COOLDOWN) {
    return false;
  }
  lastPromptTime = now;
  return true;
}

export function getDonationPrompt(): string {
  const stats = getStats();
  const supporterCount = stats.total;
  
  // Different messages based on supporter count
  if (supporterCount === 0) {
    return `
💡 web-search is free and open source. If you find it useful, consider supporting development:
   https://ko-fi.com/thriloke96
   Every coffee helps keep this project alive! ☕`;
  }
  
  return `
💡 web-search is free, thanks to ${supporterCount} supporters!
   Want to join them? https://ko-fi.com/thriloke96
   🏆 Founding Members get priority support + feature requests.`;
}

// ---------------------------------------------------------------------------
// Credits Display
// ---------------------------------------------------------------------------

export function getCreditsText(): string {
  const lines: string[] = [];
  
  if (supportersData.founding.length > 0) {
    lines.push(`🏆 Founding Members: ${supportersData.founding.join(", ")}`);
  }
  if (supportersData.pizza.length > 0) {
    lines.push(`🍕 Pizza Tier: ${supportersData.pizza.join(", ")}`);
  }
  if (supportersData.lunch.length > 0) {
    lines.push(`🍔 Lunch Tier: ${supportersData.lunch.join(", ")}`);
  }
  if (supportersData.coffee.length > 0) {
    const coffeeList = supportersData.coffee.slice(0, 5).join(", ");
    const remaining = supportersData.coffee.length - 5;
    lines.push(`☕ Coffee Tier: ${coffeeList}${remaining > 0 ? ` +${remaining} others` : ""}`);
  }
  
  if (lines.length === 0) {
    return "web-search is free and open source. No supporters yet — be the first!";
  }
  
  return "Made possible by supporters:\n" + lines.join("\n");
}

// ---------------------------------------------------------------------------
// Add Supporter (for admin use)
// ---------------------------------------------------------------------------

export function addSupporter(name: string, tier: DonationTier): void {
  if (!supportersData[tier].includes(name)) {
    supportersData[tier].push(name);
    supportersData.stats.totalSupporters++;
    supportersData.stats.lastUpdated = new Date().toISOString().split("T")[0];
    
    // Save to file
    try {
      const dataPath = join(__dirname, "supporters.json");
      fs.writeFileSync(dataPath, JSON.stringify(supportersData, null, 2));
    } catch {
      // File write failed, but data is updated in memory
    }
  }
}

// ---------------------------------------------------------------------------
// Export
// ---------------------------------------------------------------------------

export const donationManager = {
  isSupporter,
  getSupporterTier,
  getSupporterMessage,
  getStats,
  shouldShowDonationPrompt,
  getDonationPrompt,
  getCreditsText,
  addSupporter,
  TIER_EMOJI,
  TIER_NAMES,
  TIER_AMOUNTS,
};

/**
 * Donation & Supporter System for web-search
 * 
 * Manages:
 * - Supporter recognition
 * - Donation prompts (non-intrusive)
 * - Credits display
 */

import * as fs from "fs";
import { join } from "path";

// ---------------------------------------------------------------------------
// Supporter Data
// ---------------------------------------------------------------------------

interface SupporterData {
  founding: string[];
  pizza: string[];
  lunch: string[];
  coffee: string[];
  stats: {
    totalDonations: number;
    totalSupporters: number;
    lastUpdated: string;
  };
}

// Default supporters file (shipped with plugin)
let supportersData: SupporterData = {
  founding: [],
  pizza: [],
  lunch: [],
  coffee: [],
  stats: {
    totalDonations: 0,
    totalSupporters: 0,
    lastUpdated: new Date().toISOString().split("T")[0],
  },
};

// Try to load supporters data
try {
  const dataPath = join(__dirname, "supporters.json");
  if (fs.existsSync(dataPath)) {
    supportersData = JSON.parse(fs.readFileSync(dataPath, "utf-8"));
  }
} catch {
  // Use defaults
}

// ---------------------------------------------------------------------------
// Donation Tiers
// ---------------------------------------------------------------------------

export type DonationTier = "founding" | "pizza" | "lunch" | "coffee";

const TIER_EMOJI: Record<DonationTier, string> = {
  founding: "🏆",
  pizza: "🍕",
  lunch: "🍔",
  coffee: "☕",
};

const TIER_NAMES: Record<DonationTier, string> = {
  founding: "Founding Member",
  pizza: "Pizza Tier",
  lunch: "Lunch Tier",
  coffee: "Coffee Tier",
};

const TIER_AMOUNTS: Record<DonationTier, string> = {
  founding: "$50+",
  pizza: "$25",
  lunch: "$10",
  coffee: "$3",
};

// ---------------------------------------------------------------------------
// Supporter Functions
// ---------------------------------------------------------------------------

export function isSupporter(name: string): boolean {
  const allSupporters = [
    ...supportersData.founding,
    ...supportersData.pizza,
    ...supportersData.lunch,
    ...supportersData.coffee,
  ];
  return allSupporters.some(
    (s) => s.toLowerCase() === name.toLowerCase()
  );
}

export function getSupporterTier(name: string): DonationTier | null {
  if (supportersData.founding.some((s) => s.toLowerCase() === name.toLowerCase())) return "founding";
  if (supportersData.pizza.some((s) => s.toLowerCase() === name.toLowerCase())) return "pizza";
  if (supportersData.lunch.some((s) => s.toLowerCase() === name.toLowerCase())) return "lunch";
  if (supportersData.coffee.some((s) => s.toLowerCase() === name.toLowerCase())) return "coffee";
  return null;
}

export function getSupporterMessage(name: string): string | null {
  const tier = getSupporterTier(name);
  if (!tier) return null;
  
  const emoji = TIER_EMOJI[tier];
  return `${emoji} Thanks for supporting web-search, ${name}! You're a ${TIER_NAMES[tier]}.`;
}

export function getStats() {
  return {
    total: supportersData.stats.totalSupporters,
    founding: supportersData.founding.length,
    pizza: supportersData.pizza.length,
    lunch: supportersData.lunch.length,
    coffee: supportersData.coffee.length,
  };
}

// ---------------------------------------------------------------------------
// Donation Prompt (Non-intrusive)
// ---------------------------------------------------------------------------

// Track when we last showed the prompt
let lastPromptTime = 0;
const PROMPT_COOLDOWN = 24 * 60 * 60 * 1000; // 24 hours

export function shouldShowDonationPrompt(): boolean {
  const now = Date.now();
  if (now - lastPromptTime < PROMPT_COOLDOWN) {
    return false;
  }
  lastPromptTime = now;
  return true;
}

export function getDonationPrompt(): string {
  const stats = getStats();
  const supporterCount = stats.total;
  
  // Different messages based on supporter count
  if (supporterCount === 0) {
    return `
💡 web-search is free and open source. If you find it useful, consider supporting development:
   https://ko-fi.com/thriloke96
   Every coffee helps keep this project alive! ☕`;
  }
  
  return `
💡 web-search is free, thanks to ${supporterCount} supporters!
   Want to join them? https://ko-fi.com/thriloke96
   🏆 Founding Members get priority support + feature requests.`;
}

// ---------------------------------------------------------------------------
// Credits Display
// ---------------------------------------------------------------------------

export function getCreditsText(): string {
  const lines: string[] = [];
  
  if (supportersData.founding.length > 0) {
    lines.push(`🏆 Founding Members: ${supportersData.founding.join(", ")}`);
  }
  if (supportersData.pizza.length > 0) {
    lines.push(`🍕 Pizza Tier: ${supportersData.pizza.join(", ")}`);
  }
  if (supportersData.lunch.length > 0) {
    lines.push(`🍔 Lunch Tier: ${supportersData.lunch.join(", ")}`);
  }
  if (supportersData.coffee.length > 0) {
    const coffeeList = supportersData.coffee.slice(0, 5).join(", ");
    const remaining = supportersData.coffee.length - 5;
    lines.push(`☕ Coffee Tier: ${coffeeList}${remaining > 0 ? ` +${remaining} others` : ""}`);
  }
  
  if (lines.length === 0) {
    return "web-search is free and open source. No supporters yet — be the first!";
  }
  
  return "Made possible by supporters:\n" + lines.join("\n");
}

// ---------------------------------------------------------------------------
// Add Supporter (for admin use)
// ---------------------------------------------------------------------------

export function addSupporter(name: string, tier: DonationTier): void {
  if (!supportersData[tier].includes(name)) {
    supportersData[tier].push(name);
    supportersData.stats.totalSupporters++;
    supportersData.stats.lastUpdated = new Date().toISOString().split("T")[0];
    
    // Save to file
    try {
      const dataPath = join(__dirname, "supporters.json");
      fs.writeFileSync(dataPath, JSON.stringify(supportersData, null, 2));
    } catch {
      // File write failed, but data is updated in memory
    }
  }
}

// ---------------------------------------------------------------------------
// Export
// ---------------------------------------------------------------------------

export const donationManager = {
  isSupporter,
  getSupporterTier,
  getSupporterMessage,
  getStats,
  shouldShowDonationPrompt,
  getDonationPrompt,
  getCreditsText,
  addSupporter,
  TIER_EMOJI,
  TIER_NAMES,
  TIER_AMOUNTS,
};