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body as Record : {};\n } catch {\n return {};\n }\n}\n\nfunction extractKey(req: Request, body: Record): string {\n const message = body.message as Record | undefined;\n const call = message?.call as Record | undefined;\n if (typeof call?.id === \"string\" && call.id) return call.id;\n if (typeof body.callId === \"string\" && body.callId) return body.callId;\n const headerKey = req.headers.get(\"x-test-key\");\n if (headerKey) return headerKey;\n return \"unknown\";\n}\n\nasync function bumpAttempt(scenario: string, key: string): Promise {\n const result = await sqlite.execute({\n sql: `INSERT INTO ${TABLE} (scenario, key, attempts, updated_at)\n VALUES (?, ?, 1, ?)\n ON CONFLICT (scenario, key)\n DO UPDATE SET attempts = attempts + 1, updated_at = excluded.updated_at\n RETURNING attempts`,\n args: [scenario, key, new Date().toISOString()],\n });\n return Number(result.rows[0].attempts);\n}\n\nfunction scenarioResponse(scenario: string, key: string, attempt: number, status: number) {\n const payload = { scenario, key, attempt, status, timestamp: new Date().toISOString() };\n console.log(JSON.stringify({ evt: \"webhook_hit\", ...payload }));\n return Response.json(payload, { status });\n}\n\nasync function handleScenario(req: Request, scenario: string, status: number) {\n const body = await readJson(req);\n const key = extractKey(req, body);\n const attempt = await bumpAttempt(scenario, key);\n return scenarioResponse(scenario, key, attempt, status);\n}\n\n// ---- scenario endpoints ----\n\napp.post(\"/webhook/ok\", (c) => handleScenario(c.req.raw, \"ok\", 200));\n\nconst FAIL_CODES = new Set([400, 401, 403, 404, 413, 422, 500, 502, 503]);\napp.post(\"/webhook/fail/:code\", (c) => {\n const code = Number(c.req.param(\"code\"));\n if (!FAIL_CODES.has(code)) {\n return c.json({ error: \"unsupported code\", supported: [...FAIL_CODES] }, 404);\n }\n return handleScenario(c.req.raw, `fail/${code}`, code);\n});\n\napp.post(\"/webhook/timeout/3s\", async (c) => {\n const body = await readJson(c.req.raw);\n const key = extractKey(c.req.raw, body);\n const attempt = await bumpAttempt(\"timeout/3s\", key);\n await new Promise((resolve) => setTimeout(resolve, 3000));\n return scenarioResponse(\"timeout/3s\", key, attempt, 200);\n});\n\napp.post(\"/webhook/flaky/2-then-200\", async (c) => {\n const body = await readJson(c.req.raw);\n const key = extractKey(c.req.raw, body);\n const attempt = await bumpAttempt(\"flaky/2-then-200\", key);\n const status = attempt <= 2 ? 502 : 200;\n return scenarioResponse(\"flaky/2-then-200\", key, attempt, status);\n});\n\n// ---- utility endpoints ----\n\napp.get(\"/webhook/state\", async (c) => {\n const key = c.req.query(\"key\");\n const result = key\n ? await sqlite.execute({\n sql: `SELECT scenario, key, attempts, updated_at FROM ${TABLE} WHERE key = ? ORDER BY scenario`,\n args: [key],\n })\n : await sqlite.execute(\n `SELECT scenario, key, attempts, updated_at FROM ${TABLE} ORDER BY key, scenario`,\n );\n return c.json({ counters: result.rows, timestamp: new Date().toISOString() });\n});\n\napp.post(\"/webhook/state/reset\", async (c) => {\n const body = await readJson(c.req.raw);\n const key = c.req.query(\"key\") ?? (typeof body.key === \"string\" ? body.key : undefined);\n const result = key\n ? await sqlite.execute({ sql: `DELETE FROM ${TABLE} WHERE key = ?`, args: [key] })\n : await sqlite.execute(`DELETE FROM ${TABLE}`);\n console.log(JSON.stringify({ evt: \"state_reset\", key: key ?? \"all\", deleted: result.rowsAffected }));\n return c.json({\n reset: key ?? \"all\",\n deleted: result.rowsAffected,\n timestamp: new Date().toISOString(),\n });\n});\n\n// Fire every scenario against this val's own live URL and report pass/fail.\n// Uses a fresh key per run (override with ?key=) so flaky is deterministic.\napp.get(\"/webhook/test-all\", async (c) => {\n const origin = new URL(c.req.url).origin;\n const key = c.req.query(\"key\") ?? `test-all-${crypto.randomUUID().slice(0, 8)}`;\n const hit = async (path: string) => {\n const res = await fetch(`${origin}${path}`, {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\", \"x-test-key\": key },\n body: JSON.stringify({ callId: key }),\n });\n await res.body?.cancel();\n return res.status;\n };\n\n const singles: Array<[string, number]> = [\n [\"/webhook/ok\", 200],\n [\"/webhook/fail/400\", 400],\n [\"/webhook/fail/401\", 401],\n [\"/webhook/fail/403\", 403],\n [\"/webhook/fail/404\", 404],\n [\"/webhook/fail/413\", 413],\n [\"/webhook/fail/422\", 422],\n [\"/webhook/fail/500\", 500],\n [\"/webhook/fail/502\", 502],\n [\"/webhook/fail/503\", 503],\n [\"/webhook/timeout/3s\", 200],\n ];\n\n const results = await Promise.all(singles.map(async ([path, expected]) => {\n try {\n const actual = await hit(path);\n return { scenario: path, expected, actual, pass: actual === expected };\n } catch (err) {\n return { scenario: path, expected, actual: null, pass: false, error: String(err) };\n }\n }));\n\n // flaky: 3 sequential hits, expect 502, 502, 200\n const flakyExpected = [502, 502, 200];\n const flakyActual: (number | null)[] = [];\n for (let i = 0; i < 3; i++) {\n try {\n flakyActual.push(await hit(\"/webhook/flaky/2-then-200\"));\n } catch {\n flakyActual.push(null);\n }\n }\n results.push({\n scenario: \"/webhook/flaky/2-then-200 (x3)\",\n expected: flakyExpected as unknown as number,\n actual: flakyActual as unknown as number,\n pass: flakyActual.join(\",\") === flakyExpected.join(\",\"),\n });\n\n const failed = results.filter((r) => !r.pass);\n console.log(JSON.stringify({ evt: \"test_all\", key, passed: results.length - failed.length, failed: failed.length }));\n return c.json({\n key,\n total: results.length,\n passed: results.length - failed.length,\n failed: failed.length,\n results,\n timestamp: new Date().toISOString(),\n }, failed.length === 0 ? 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Code