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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.21;
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import {Script} from "forge-std/Script.sol";
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import {console} from "forge-std/Test.sol";
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import {Base64} from "solady/utils/Base64.sol";
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import {DynamicBufferLib} from "solady/utils/DynamicBufferLib.sol";
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import {LibString} from "solady/utils/LibString.sol";
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import {FixedPointMathLib as Math} from "solady/utils/FixedPointMathLib.sol";
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import {FiveFiveFiveAudio} from "src/utils/FiveFiveFiveAudio.sol";
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/// @notice A script to create and write the WAV audio file of the arrangement
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/// of “Gonna Fly Now” by Bill Conti completely with smart contracts.
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/// @dev You must run this script with a high `--memory-limit` option (e.g.
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/// `50_000_000_000` works) and `--via-ir`.
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contract GenerateAudioOutputScript is Script {
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    using DynamicBufferLib for DynamicBufferLib.DynamicBuffer;
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    using LibString for uint256;
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    using Math for int256;
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    using Math for uint256;
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    // -------------------------------------------------------------------------
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    // Constants
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    // -------------------------------------------------------------------------
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    /// @notice The total number of ticks for 1 cycle of the audio.
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    /// @dev Note that the length of the WAV file is written into the header
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    /// returned by {FiveFiveFiveAudio.getAudioWavFileHeader} to take in a
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    /// maximum of `776*2**10` samples. To change this, update the header
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    /// returned accordingly.
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    uint256 internal constant TICKS_PER_CYCLE = 776 << 10;
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    // -------------------------------------------------------------------------
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    // Script `run()`
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    // -------------------------------------------------------------------------
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    /// @notice Calls the {FiveFiveFiveAudio} library to generate the audio data
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    /// and writes the WAV file to `./output/wav/rocky.wav`.
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    function run() public {
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        DynamicBufferLib.DynamicBuffer memory buffer;
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        // First, write the WAV file header.
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        buffer.p(FiveFiveFiveAudio.getAudioWavFileHeader());
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        // Next, we form the audio data by calling `getSoundValueAtSample` for
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        // each sample in the range `[0, 776*2**10)` and write each result to
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        // `data`.
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        bytes memory data = new bytes(TICKS_PER_CYCLE);
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        for (uint256 tick; tick < TICKS_PER_CYCLE; ) {
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            data[tick] = bytes1(FiveFiveFiveAudio.getSoundValueAtSample(tick));
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            unchecked {
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                ++tick;
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            }
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        }
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        buffer.p(data);
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        vm.writeFile("./output/wav/rocky.wav", string(buffer.data));
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    }
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}