import { Elysia } from "elysia"
import { db } from "@/lib/db/index"
import { sql } from "drizzle-orm"

const SEVEN_DAYS_AGO = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000)

export const dashboardPublicRoutes = new Elysia({ prefix: "/dashboard", detail: { tags: ["Dashboard"] } })

  // ── Trending Games (7-day activity) ────────────────────────────────
  .get(
    "/trending",
    async () => {
      const trending = await db.execute(sql`
        WITH recent_benchmarks AS (
          SELECT gv.game_id, COUNT(*) AS cnt
          FROM performance_entries pe
          JOIN game_versions gv ON pe.version_id = gv.id
          WHERE pe.is_removed = false
            AND pe.created_at >= ${SEVEN_DAYS_AGO}
          GROUP BY gv.game_id
        ),
        recent_comments AS (
          SELECT gc.game_id, COUNT(*) AS cnt
          FROM game_comments gc
          WHERE gc.is_removed = false
            AND gc.created_at >= ${SEVEN_DAYS_AGO}
          GROUP BY gc.game_id
        ),
        recent_upvotes AS (
          SELECT gv.game_id, SUM(pe.upvotes) AS total_upvotes
          FROM performance_entries pe
          JOIN game_versions gv ON pe.version_id = gv.id
          WHERE pe.is_removed = false
            AND pe.updated_at >= ${SEVEN_DAYS_AGO}
          GROUP BY gv.game_id
        )
        SELECT
          g.id,
          g.title,
          g.capsule_image,
          g.header_image,
          g.playability_status,
          COALESCE(rb.cnt, 0) AS benchmark_count,
          COALESCE(rc.cnt, 0) AS comment_count,
          COALESCE(ru.total_upvotes, 0) AS upvote_count,
          (COALESCE(rb.cnt, 0) * 3 + COALESCE(rc.cnt, 0) * 2 + COALESCE(ru.total_upvotes, 0) * 1) AS activity_score
        FROM games g
        LEFT JOIN recent_benchmarks rb ON rb.game_id = g.id
        LEFT JOIN recent_comments rc ON rc.game_id = g.id
        LEFT JOIN recent_upvotes ru ON ru.game_id = g.id
        WHERE (rb.cnt IS NOT NULL OR rc.cnt IS NOT NULL OR ru.total_upvotes IS NOT NULL)
        ORDER BY activity_score DESC
        LIMIT 10
      `)

      return trending.rows
    },
    { detail: { description: "Trending games based on 7-day benchmark and comment activity." } },
  )

  // ── Best Performing New Releases ─────────────────────────────────
  .get(
    "/best-new-releases",
    async () => {
      const results = await db.execute(sql`
        SELECT
          g.id,
          g.title,
          g.capsule_image,
          g.header_image,
          g.release_date,
          g.created_at,
          g.playability_status,
          AVG(pe.fps_avg) AS avg_fps,
          COUNT(pe.id) AS benchmark_count
        FROM games g
        JOIN game_versions gv ON gv.game_id = g.id
        JOIN performance_entries pe ON pe.version_id = gv.id
        WHERE pe.is_removed = false
          AND (g.created_at >= ${new Date(Date.now() - 30 * 24 * 60 * 60 * 1000)}
               OR g.release_date IS NOT NULL)
        GROUP BY g.id, g.title, g.capsule_image, g.header_image, g.release_date, g.created_at, g.playability_status
        HAVING COUNT(pe.id) >= 3
        ORDER BY avg_fps DESC
        LIMIT 10
      `)

      return results.rows
    },
    { detail: { description: "Best performing new releases from the last 30 days with at least 3 benchmarks." } },
  )

  // ── Most Tested Games ─────────────────────────────────────────────
  .get(
    "/most-tested",
    async () => {
      const results = await db.execute(sql`
        SELECT
          g.id,
          g.title,
          g.capsule_image,
          g.header_image,
          g.playability_status,
          COUNT(pe.id) AS benchmark_count,
          AVG(pe.fps_avg) AS avg_fps
        FROM games g
        JOIN game_versions gv ON gv.game_id = g.id
        JOIN performance_entries pe ON pe.version_id = gv.id
        WHERE pe.is_removed = false
        GROUP BY g.id, g.title, g.capsule_image, g.header_image, g.playability_status
        ORDER BY benchmark_count DESC
        LIMIT 10
      `)

      return results.rows
    },
    { detail: { description: "Games with the most benchmark entries, ordered by count descending." } },
  )

  // ── Recently Added Benchmarks ──────────────────────────────────────
  .get(
    "/recent-benchmarks",
    async () => {
      const results = await db.execute(sql`
        SELECT
          g.id,
          g.title,
          g.capsule_image,
          g.header_image,
          g.playability_status,
          COUNT(pe.id) AS benchmark_count,
          AVG(pe.fps_avg) AS avg_fps,
          MAX(pe.created_at) AS latest_benchmark_at
        FROM games g
        JOIN game_versions gv ON gv.game_id = g.id
        JOIN performance_entries pe ON pe.version_id = gv.id
        WHERE pe.is_removed = false
        GROUP BY g.id, g.title, g.capsule_image, g.header_image, g.playability_status
        ORDER BY MAX(pe.created_at) DESC
        LIMIT 10
      `)

      return results.rows
    },
    { detail: { description: "Games with the most recently added benchmarks, ordered by latest entry date." } },
  )

  // ── Most Reported Games ────────────────────────────────────────────
  .get(
    "/most-reported",
    async () => {
      const results = await db.execute(sql`
        SELECT
          g.id,
          g.title,
          g.capsule_image,
          g.header_image,
          COUNT(DISTINCT r.id) AS report_count
        FROM games g
        JOIN game_versions gv ON gv.game_id = g.id
        JOIN performance_entries pe ON pe.version_id = gv.id
        JOIN reports r ON r.entry_id = pe.id
        WHERE r.status = 'open'
        GROUP BY g.id, g.title, g.capsule_image, g.header_image
        ORDER BY report_count DESC
        LIMIT 10
      `)

      return results.rows
    },
    { detail: { description: "Games with the most open reports against their performance entries." } },
  )