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DEVICE_ID = \"11300767\";\nconst PASSWORD = \"1234567\";\nconst BASE = \"https://mikasolar.com\";\n\nexport default async function (req: Request): Promise {\n const cors = {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"GET, POST, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type\",\n };\n if (req.method === \"OPTIONS\") {\n return new Response(null, { status: 204, headers: cors });\n }\n\n const path = new URL(req.url).pathname;\n if (path === \"/\") {\n return new Response(\"MikaSolar Proxy OK\", { headers: cors });\n }\n\n // ── GET /data ─────────────────────────────────────\n if (path === \"/data\" && req.method === \"GET\") {\n try {\n const res = await fetch(\n `${BASE}/api/raw-data/${DEVICE_ID}?password=${PASSWORD}`,\n );\n if (!res.ok) throw new Error(`HTTP ${res.status}`);\n const blocks: any[] = await res.json();\n const result: any = { cells: [], ts: Date.now() };\n\n for (const block of blocks) {\n const raw = Uint8Array.from(\n atob(block.reg_val),\n (c) => c.charCodeAt(0),\n );\n const dv = new DataView(raw.buffer);\n const s = block.reg_start;\n\n const u16 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 2 <= raw.length ? dv.getUint16(p, true) : null;\n };\n const i32 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getInt32(p, true) : null;\n };\n const u32 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getUint32(p, true) : null;\n };\n\n // Cell voltages mV (addr 306-336)\n for (let i = 0; i < 16; i++) {\n const v = u16(306 + i * 2);\n if (v !== null) result.cells[i] = v;\n }\n\n const vRaw = u32(450);\n if (vRaw !== null) result.voltage_mV = vRaw;\n const cRaw = i32(458);\n if (cRaw !== null) result.current_mA = cRaw;\n const soc = u16(473);\n if (soc !== null) result.soc = soc & 0xFF;\n const mos = u16(444);\n if (mos !== null) result.mos_temp = mos * 0.1;\n const t1 = u16(462);\n if (t1 !== null) result.bat_t1 = t1 * 0.1;\n const t2 = u16(464);\n if (t2 !== null) result.bat_t2 = t2 * 0.1;\n const cap = u32(478);\n if (cap !== null) result.capacity_mAh = cap;\n const rem = u32(474);\n if (rem !== null) result.remain_mAh = rem;\n const cyc = u32(482);\n if (cyc !== null) result.cycle_count = cyc;\n const avg = u16(374);\n if (avg !== null) result.cell_avg_mV = avg;\n const dif = u16(376);\n if (dif !== null) result.cell_diff_mV = dif;\n // Also compute from cells array directly as fallback\n if (result.cells.length === 16 && !result.cell_diff_mV) {\n const mx = Math.max(...result.cells), mn = Math.min(...result.cells);\n result.cell_diff_mV = mx - mn;\n }\n const hlth = u16(490);\n if (hlth !== null) result.health = hlth;\n\n // Switches\n // Switches are big-endian uint32\n const u32be = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getUint32(p, false) : null;\n };\n const u16be = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 2 <= raw.length ? dv.getUint16(p, false) : null;\n };\n const chg = u32be(118);\n if (chg !== null) result.charge = chg > 0 ? \"ON\" : \"OFF\";\n const dch = u32be(122);\n if (dch !== null) result.discharge = dch > 0 ? \"ON\" : \"OFF\";\n const bal = u32be(126);\n if (bal !== null) result.balance = bal > 0 ? \"ON\" : \"OFF\";\n const flt = u16be(282);\n if (flt !== null) result.float_charge = (flt & 512) > 0 ? \"ON\" : \"OFF\";\n\n // Settings (scale 0.001 -> real value)\n const readSetting = (a: number, is32 = true) => {\n const v = is32 ? u32(a) : u16(a);\n return v !== null ? v * 0.001 : null;\n };\n if (s <= 18) {\n const v = readSetting(18);\n if (v !== null) result.cfg_cellovp = v;\n }\n if (s <= 22) {\n const v = readSetting(22);\n if (v !== null) result.cfg_cellovpr = v;\n }\n if (s <= 10) {\n const v = readSetting(10);\n if (v !== null) result.cfg_celluvp = v;\n }\n if (s <= 14) {\n const v = readSetting(14);\n if (v !== null) result.cfg_celluvpr = v;\n }\n if (s <= 46) {\n const v = readSetting(46);\n if (v !== null) result.cfg_poweroffvolt = v;\n }\n if (s <= 26) {\n const v = readSetting(26);\n if (v !== null) result.cfg_balancetrigvolt = v;\n }\n if (s <= 138) {\n const v = readSetting(138);\n if (v !== null) result.cfg_startbalancevolt = v;\n }\n if (s <= 130) {\n const v = readSetting(130);\n if (v !== null) result.cfg_batterycapacity = v;\n }\n if (s <= 50) {\n const v = readSetting(50);\n if (v !== null) result.cfg_maxchargecur = v;\n }\n if (s <= 62) {\n const v = readSetting(62);\n if (v !== null) result.cfg_maxdischargecur = v;\n }\n if (s <= 42) {\n const v = readSetting(42);\n if (v !== null) result.cfg_cellrfv = v;\n }\n if (s <= 38) {\n const v = readSetting(38);\n if (v !== null) result.cfg_cellrcv = v;\n }\n if (s <= 30) {\n const v = u32(30);\n if (v !== null) result.cfg_soc100volt = v * 0.001;\n }\n if (s <= 34) {\n const v = u32(34);\n if (v !== null) result.cfg_soc0volt = v * 0.001;\n }\n }\n\n return new Response(JSON.stringify({ ok: true, data: result }), {\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n } catch (e) {\n return new Response(JSON.stringify({ ok: false, error: String(e) }), {\n status: 500,\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n }\n }\n\n // ── POST /write ───────────────────────────────────\n if (path === \"/write\" && req.method === \"POST\") {\n try {\n const body = await req.json();\n const { register_name, register_value } = body;\n if (!register_name || register_value === undefined) {\n throw new Error(\"Missing register_name or register_value\");\n }\n\n const res = await fetch(\n `${BASE}/api/write-register/${DEVICE_ID}?password=${PASSWORD}`,\n {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n device_model: \"JKV1\",\n register_name,\n register_value,\n }),\n },\n );\n const data = await res.json();\n const ok = res.ok && (data.success === true || data.status === \"success\");\n return new Response(JSON.stringify({ ok, data }), {\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n } catch (e) {\n return new Response(JSON.stringify({ ok: false, error: String(e) }), {\n status: 500,\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n }\n }\n\n return new Response(\"Not found\", { status: 404, headers: cors });\n}","const DEVICE_ID = \"11300767\";\nconst PASSWORD = \"1234567\";\nconst MIKA_USER = \"0984934620\";\nconst MIKA_PASS = \"1234567\";\nconst BASE = \"https://mikasolar.com\";\n\nlet sessionCookie = \"\";\nlet lastLogin = 0;\nconst LOGIN_TTL = 20 * 60 * 1000;\n\n// ── Login ─────────────────────────────────────────\nasync function login(): Promise {\n try {\n const r1 = await fetch(`${BASE}/login`, {\n headers: { \"User-Agent\": \"Mozilla/5.0\" },\n redirect: \"manual\",\n });\n const sc1 = r1.headers.get(\"set-cookie\");\n if (sc1) sessionCookie = sc1.split(\";\")[0];\n const html = await r1.text();\n const csrf = (html.match(/name=\"_token\"\\s+value=\"([^\"]+)\"/) || [])[1] || \"\";\n const body = new URLSearchParams({\n _token: csrf,\n username: MIKA_USER,\n password: MIKA_PASS,\n });\n const r2 = await fetch(`${BASE}/login`, {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/x-www-form-urlencoded\",\n \"User-Agent\": \"Mozilla/5.0\",\n \"Cookie\": sessionCookie,\n },\n body: body.toString(),\n redirect: \"manual\",\n });\n const sc2 = r2.headers.get(\"set-cookie\");\n if (sc2) sessionCookie = sc2.split(\";\")[0];\n lastLogin = Date.now();\n console.log(\n \"Login status:\",\n r2.status,\n \"cookie:\",\n sessionCookie.slice(0, 40),\n );\n return r2.status === 302 || r2.status === 200;\n } catch (e) {\n console.error(\"Login error:\", e);\n return false;\n }\n}\n\nasync function ensureLoggedIn() {\n if (!sessionCookie || Date.now() - lastLogin > LOGIN_TTL) await login();\n}\n\n// ── Decode raw-data binary ─────────────────────────\nfunction decodeBlocks(blocks: any[]): any {\n const result: any = { cells: [] };\n for (const block of blocks) {\n const raw = Uint8Array.from(atob(block.reg_val), (c) => c.charCodeAt(0));\n const dv = new DataView(raw.buffer);\n const s = block.reg_start;\n const u16 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 2 <= raw.length ? dv.getUint16(p, true) : null;\n };\n const i32 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getInt32(p, true) : null;\n };\n const u32 = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getUint32(p, true) : null;\n };\n const u32be = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 4 <= raw.length ? dv.getUint32(p, false) : null;\n };\n const u16be = (a: number) => {\n const p = a - s;\n return p >= 0 && p + 2 <= raw.length ? dv.getUint16(p, false) : null;\n };\n const cfg = (a: number) => {\n const v = u32(a);\n return v != null ? v * 0.001 : null;\n };\n\n // Cells (mV)\n for (let i = 0; i < 16; i++) {\n const v = u16(306 + i * 2);\n if (v != null) result.cells[i] = v;\n }\n\n const vRaw = u32(450);\n if (vRaw != null) result.voltage_mV = vRaw;\n const cRaw = i32(458);\n if (cRaw != null) result.current_mA = cRaw;\n const soc = u16(473);\n if (soc != null) result.soc = soc & 0xFF;\n const mos = u16(444);\n if (mos != null) result.mos_temp = mos * 0.1;\n const t1 = u16(462);\n if (t1 != null) result.bat_t1 = t1 * 0.1;\n const t2 = u16(464);\n if (t2 != null) result.bat_t2 = t2 * 0.1;\n const cap = u32(478);\n if (cap != null) result.capacity_mAh = cap;\n const rem = u32(474);\n if (rem != null) result.remain_mAh = rem;\n const cyc = u32(482);\n if (cyc != null) result.cycle_count = cyc;\n const hlth = u16(490);\n if (hlth != null) result.health = hlth;\n const avg = u16(374);\n if (avg != null) result.cell_avg_mV = avg;\n const dif = u16(376);\n if (dif != null) result.cell_diff_mV = dif;\n\n // Switches (big-endian)\n const chg = u32be(118);\n if (chg != null) result.charge = chg > 0 ? \"ON\" : \"OFF\";\n const dch = u32be(122);\n if (dch != null) result.discharge = dch > 0 ? \"ON\" : \"OFF\";\n const bal = u32be(126);\n if (bal != null) result.balance = bal > 0 ? \"ON\" : \"OFF\";\n const flt = u16be(282);\n if (flt != null) result.float_charge = (flt & 512) > 0 ? \"ON\" : \"OFF\";\n\n // Settings\n const v_ovp = cfg(18);\n if (v_ovp != null) result.cfg_cellovp = v_ovp;\n const v_ovpr = cfg(22);\n if (v_ovpr != null) result.cfg_cellovpr = v_ovpr;\n const v_uvp = cfg(10);\n if (v_uvp != null) result.cfg_celluvp = v_uvp;\n const v_uvpr = cfg(14);\n if (v_uvpr != null) result.cfg_celluvpr = v_uvpr;\n const v_poff = cfg(46);\n if (v_poff != null) result.cfg_poweroffvolt = v_poff;\n const v_btrig = cfg(26);\n if (v_btrig != null) result.cfg_balancetrigvolt = v_btrig;\n const v_bst = cfg(138);\n if (v_bst != null) result.cfg_startbalancevolt = v_bst;\n const v_mchg = cfg(50);\n if (v_mchg != null) result.cfg_maxchargecur = v_mchg;\n const v_mdch = cfg(62);\n if (v_mdch != null) result.cfg_maxdischargecur = v_mdch;\n const v_rcv = cfg(38);\n if (v_rcv != null) result.cfg_cellrcv = v_rcv;\n const v_rfv = cfg(42);\n if (v_rfv != null) result.cfg_cellrfv = v_rfv;\n const v_cap = u32(130);\n if (v_cap != null) result.cfg_batterycapacity = v_cap * 0.001;\n const v_s100 = cfg(30);\n if (v_s100 != null) result.cfg_soc100volt = v_s100;\n const v_s0 = cfg(34);\n if (v_s0 != null) result.cfg_soc0volt = v_s0;\n }\n return result;\n}\n\nexport default async function (req: Request): Promise {\n const cors = {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"GET, POST, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type\",\n };\n if (req.method === \"OPTIONS\") {\n return new Response(null, { status: 204, headers: cors });\n }\n const path = new URL(req.url).pathname;\n if (path === \"/\") {\n return new Response(\"MikaSolar Proxy OK\", { headers: cors });\n }\n\n // ── GET /data ──────────────────────────────────\n if (path === \"/data\") {\n try {\n const res = await fetch(\n `${BASE}/api/raw-data/${DEVICE_ID}?password=${PASSWORD}`,\n );\n if (!res.ok) throw new Error(`HTTP ${res.status}`);\n const blocks = await res.json();\n const data = decodeBlocks(blocks);\n data.ts = Date.now();\n return new Response(JSON.stringify({ ok: true, data }), {\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n } catch (e) {\n return new Response(JSON.stringify({ ok: false, error: String(e) }), {\n status: 500,\n headers: { ...cors, \"Content-Type\": \"application/json\" },\n });\n }\n }\n\n // ── POST /write ────────────────────────────────\n if (path === \"/write\" && req.method === \"POST\") {\n try {\n await ensureLoggedIn();\n const body = await req.json();\n const { register_name, register_value } = body;\n if (!register_name || register_value === undefined) {\n throw new Error(\"Missing register_name or register_value\");\n }\n\n const res = await fetch(`${BASE}/api/write-register/${DEVICE_ID}`, {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n \"Cookie\": sessionCookie,\n \"User-Agent\": \"Mozilla/5.0\",\n \"Referer\": `${BASE}/`,\n },\n body: JSON.stringify({\n device_model: \"JKV1\",\n register_name,\n register_value,\n }),\n });\n\n // If redirected to login, re-login and retry once\n if (res.status === 302 || res.status === 401) {\n await login();\n const res2 = await fetch(`${BASE}/api/write-register/${DEVICE_ID}`, {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n \"Cookie\": sessionCookie,\n \"User-Agent\": \"Mozilla/5.0\",\n },\n body: JSON.stringify({\n device_model: \"JKV1\",\n register_name,\n register_value,\n }),\n });\n const d2 = await res2.json();\n return new Response(\n JSON.stringify({ ok: d2.success === true, data: d2 }),\n { headers: { ...cors, \"Content-Type\": \"application/json\" } },\n );\n }\n\n const d = await res.json();\n return new 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Diff · v21