#!/usr/bin/env bash

# Run setup in this shell so WINEDLLPATH remains available to the launcher.
prepare_prism_speech() {
    local title="$1"
    shift
    local logDir="${XDG_CACHE_HOME:-$HOME/.cache}/audiogame-manager/prism-wine"
    local logFile details
    if ! mkdir -p "$logDir" || ! logFile="$(mktemp "${logDir}/setup.XXXXXX.log")"; then
        agm_msgbox "$title" "$title" "Could not prepare Prism Wine speech support: unable to create a diagnostic log in ${logDir}. Check directory permissions and free disk space."
        return 1
    fi
    if "$@" > "$logFile" 2>&1; then
        cat "$logFile"
        rm -f "$logFile"
        return 0
    fi
    cat "$logFile" >&2
    details="$(tail -n 15 "$logFile")"
    agm_msgbox "$title" "$title" "Could not prepare Prism Wine speech support.

${details}

Full diagnostic log: ${logFile}"
    return 1
}

# Build the host bridge from the same release as the application's Prism DLL.
# Wine does not implement RpcMgmtInqIfIds, which Prism uses to detect NVDA.
build_prism_speech_bridge() (
    local prismVersion="$1"
    local bridgeDir="$2"
    local buildRoot sourceRoot tool
    local -a missingTools=()

    for tool in curl tar cmake make winegcc wineg++ winebuild pkg-config; do
        command -v "$tool" >/dev/null || missingTools+=("$tool")
    done
    if [[ ${#missingTools[@]} -gt 0 ]]; then
        echo "Missing Prism Wine speech build tools: ${missingTools[*]}. Install these tools using your distribution's package manager, then launch the game again." >&2
        return 1
    fi
    if ! pkg-config --exists speech-dispatcher; then
        echo "Missing Speech Dispatcher development files (libspeechd). Install your distribution's Speech Dispatcher development package, then launch the game again." >&2
        return 1
    fi
    if ! mkdir -p "${bridgeDir%/*}" || ! buildRoot="$(mktemp -d "${bridgeDir%/*}/.build.XXXXXX")"; then
        echo "Could not create the Prism build directory. Check cache directory permissions and free disk space." >&2
        return 1
    fi
    trap 'rm -rf "$buildRoot"' EXIT
    echo "Preparing Prism ${prismVersion} Wine speech support..."
    if ! curl -fsSL --retry 3 "https://codeload.github.com/ethindp/prism/tar.gz/refs/tags/v${prismVersion}" -o "${buildRoot}/source.tar.gz"; then
        echo "Could not download Prism ${prismVersion}. Check your internet connection and whether this Prism release is available, then try again." >&2
        return 1
    fi
    if ! tar -xzf "${buildRoot}/source.tar.gz" -C "$buildRoot"; then
        echo "Could not extract Prism ${prismVersion}. Check free disk space and the archive error above." >&2
        return 1
    fi
    sourceRoot="${buildRoot}/prism-${prismVersion}"
    if ! cmake -S "${sourceRoot}/winelibs" -B "${buildRoot}/build" \
        -DCMAKE_TOOLCHAIN_FILE="${sourceRoot}/cmake/winelib-toolchain.cmake" \
        -DCMAKE_BUILD_TYPE=Release; then
        echo "Could not configure Prism ${prismVersion} Wine speech support. See the CMake error above." >&2
        return 1
    fi
    if ! cmake --build "${buildRoot}/build" --target \
        prism_speech_dispatcher_bridge prism_speech_dispatcher_bridge_placeholder -j2; then
        echo "Could not compile Prism ${prismVersion} Wine speech support. See the compiler error above." >&2
        return 1
    fi
    if ! mkdir -p "$bridgeDir" || ! cp "${buildRoot}/build/speechd/prism_speech_dispatcher_bridge.dll.so" \
        "${buildRoot}/build/speechd/placeholder/prism_speech_dispatcher_bridge.dll" \
        "$bridgeDir/"; then
        echo "Could not save the Prism speech bridge to the cache. Check directory permissions and free disk space." >&2
        return 1
    fi
)

prepare_arcadelux_prism_bridge() {
    local gameDir="$1"
    local prismVersion
    local -a metadataFiles=("${gameDir}"/_internal/prismatoid-*.dist-info/METADATA)
    if [[ ${#metadataFiles[@]} -ne 1 || ! -f "${metadataFiles[0]}" ]]; then
        echo "Could not identify Arcadelux's bundled Prism version: expected one _internal/prismatoid-*.dist-info/METADATA file. Update or reinstall Arcadelux, then try again." >&2
        return 1
    fi
    prismVersion="$(sed -n 's/^Version: //p' "${metadataFiles[0]}" | tr -d '\r')"
    if [[ ! "$prismVersion" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
        echo "Unsupported Prism version: ${prismVersion}" >&2
        return 1
    fi
    prepare_prism_bridge "$gameDir" "$prismVersion" "Arcadelux.exe"
}

# App wrappers identify their bundled Prism release before sharing bridge setup.
prepare_prism_bridge() {
    local gameDir="$1"
    local prismVersion="$2"
    local gameExecutable="$3"
    local bridgeDir
    if [[ ! "$prismVersion" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
        echo "Unsupported Prism version: ${prismVersion}" >&2
        return 1
    fi
    if [[ "$(uname -m)" != "x86_64" ]] || ! file -b "${gameDir}/${gameExecutable}" | grep -q 'PE32+'; then
        echo "Prism Wine speech requires an x86_64 host and 64-bit game." >&2
        return 1
    fi
    bridgeDir="${XDG_CACHE_HOME:-$HOME/.cache}/audiogame-manager/prism-wine/${prismVersion}-x86_64"
    if [[ ! -f "${bridgeDir}/prism_speech_dispatcher_bridge.dll" ||
          ! -f "${bridgeDir}/prism_speech_dispatcher_bridge.dll.so" ]]; then
        build_prism_speech_bridge "$prismVersion" "$bridgeDir" || return 1
    fi
    # Updates replace the game directory, so restore the placeholder each launch.
    if ! cp "${bridgeDir}/prism_speech_dispatcher_bridge.dll" "$gameDir/"; then
        echo "Could not copy the Prism speech bridge into the game directory. Check directory permissions and free disk space." >&2
        return 1
    fi
    export WINEDLLPATH="${bridgeDir}${WINEDLLPATH:+:$WINEDLLPATH}"
}

prepare_tekken3_prism_bridge() {
    local gameDir="$1"
    local prismHash
    # Only this Prism 0.18.3 DLL is supported by the Tekken integration.
    prismHash="$(sha256sum "${gameDir}/T3Access/prism.dll")" || return 1
    if [[ "${prismHash%% *}" != "7c7d09c8c7306e8e1a0c46d603ccb2a391c194c77843400c11b746e7dd56a467" ]]; then
        echo "Tekken 3 Access has an unrecognized Prism DLL; update its AGM integration before launching." >&2
        return 1
    fi
    prepare_prism_bridge "$gameDir" "0.18.3" "Tekken3.exe"
}