{"version":3,"file":"turn-json.js","names":["form","turnInput","error","copyButton","downloadButton","showError","message","fetchRequest","url","key","value","res","body","name","whileBusy","work","download","a","filename","request","r","err","fetchError","text","write","t"],"sources":["src/turn-json.ts"],"sourcesContent":["// Turn JSON form on the game page (routes/game/view.rs).\n//\n// Without JS the form is a plain GET whose attachment response downloads in\n// place, and an error (a 404 like \"eliminated on turn N...\") replaces the page\n// with its plain-text reason. This script layers on top of that:\n// - keeps the turn input on the turn the board iframe is showing,\n// - downloads through fetch, so errors show inline under the form,\n// - reveals a Copy button that puts the JSON on the clipboard.\n(function () {\n \"use strict\";\n const form = document.getElementById(\"move-request-form\") as HTMLFormElement | null;\n if (!form) return;\n const turnInput = document.getElementById(\"move-request-turn\") as HTMLInputElement;\n const error = document.getElementById(\"move-request-error\") as HTMLElement;\n const copyButton = document.getElementById(\"move-request-copy\") as HTMLButtonElement;\n const downloadButton = form.querySelector(\"button[type=submit]\")!;\n\n // The board posts {event: \"TURN\", data: {turn}} on every playback change.\n window.addEventListener(\"message\", (e) => {\n if (e.origin !== \"https://board.battlesnake.com\") return;\n if (e.source !== document.querySelector(\"#board-viewer\")?.contentWindow) return;\n if (e.data && e.data.event === \"TURN\") turnInput.value = String(e.data.data.turn);\n });\n\n function showError(message: string): void {\n error.textContent = message;\n error.hidden = false;\n }\n\n // The request for the form's turn and snake. Rejects with the server's\n // plain-text reason, or a network message.\n async function fetchRequest() {\n error.hidden = true;\n const url = form!.action + \"?\" + new URLSearchParams(Array.from(new FormData(form!).entries()).map(([key, value]) => [key, String(value)]));\n let res;\n try {\n res = await fetch(url);\n } catch (e) {\n throw new Error(\"Couldn't reach Battlesnake. Try again.\");\n }\n const body = await res.text();\n if (!res.ok) throw new Error(body || `Request failed (${res.status}).`);\n const name = /filename=\"([^\"]+)\"/.exec(res.headers.get(\"Content-Disposition\") || \"\");\n return { body, filename: name ? name[1] : \"move-request.json\" };\n }\n\n async function whileBusy(button: HTMLButtonElement, work: Promise): Promise {\n button.disabled = true;\n try {\n await work;\n } finally {\n button.disabled = false;\n }\n }\n\n function download(body: string, filename: string): void {\n const a = document.createElement(\"a\");\n a.href = URL.createObjectURL(new Blob([body], { type: \"application/json\" }));\n a.download = filename;\n document.body.appendChild(a);\n a.click();\n a.remove();\n setTimeout(() => URL.revokeObjectURL(a.href), 10000);\n }\n\n form.addEventListener(\"submit\", (e) => {\n e.preventDefault();\n const request = fetchRequest();\n whileBusy(downloadButton, request).catch(() => {});\n request.then((r) => download(r.body, r.filename), (err) => showError(err.message));\n });\n\n if (!window.isSecureContext || !navigator.clipboard) return;\n copyButton.hidden = false;\n copyButton.addEventListener(\"click\", () => {\n if (!form.reportValidity()) return;\n let fetchError: Error | null = null;\n const text = fetchRequest().then(\n (r) => r.body,\n (err: Error) => {\n fetchError = err;\n throw err;\n },\n );\n // Safari only allows clipboard writes during the click itself, so hand it\n // an item that resolves once the fetch does.\n const write = window.ClipboardItem && navigator.clipboard.write\n ? navigator.clipboard.write([\n new ClipboardItem({ \"text/plain\": text.then((t) => new Blob([t], { type: \"text/plain\" })) }),\n ])\n : text.then((t) => navigator.clipboard.writeText(t));\n whileBusy(copyButton, write).then(\n () => {\n copyButton.textContent = \"Copied!\";\n setTimeout(() => { copyButton.textContent = \"Copy\"; }, 1500);\n },\n () => showError(fetchError ? 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