install.sh

#!/bin/sh

TID_ARCH=""
TID_OS=""

TID_DIR="$HOME/.tid"
TID_BIN_DIR="$TID_DIR/bin"
TID_VERSION=""

prepareArch() {
    TID_ARCH=$(uname -m)

    case "$TID_ARCH" in
        x86) TID_ARCH="386";;
        x86_64) TID_ARCH="amd64";;
        i686) TID_ARCH="386";;
        i386) TID_ARCH="386";;
    esac
}

prepareOS() {
    TID_OS=$(echo `uname`|tr '[:upper:]' '[:lower:]')

    case "$TID_OS" in
        # Minimalist GNU for Windows
        mingw*) TID_OS='windows';;
    esac
}

prepareTidDir() {
    if test ! -d "$TID_DIR"; then
        mkdir -p "$TID_DIR"
    fi

    if test ! -d "$TID_BIN_DIR"; then
        mkdir -p "$TID_BIN_DIR"
    fi
}

prepareVersion() {
    if type "curl" > /dev/null; then
        TID_VERSION=$(curl -s https://raw.githubusercontent.com/SeerUK/tid/master/VERSION)
    elif type "wget" > /dev/null; then
        TID_VERSION=$(wget -q -O - https://raw.githubusercontent.com/SeerUK/tid/master/VERSION)
    fi
}

installRelease() {
    if test -z "$TID_ARCH"; then
        echo "Sorry, we it looks like your system architecture is unsupported."
        echo "You can always compile the Go source from https://github.com/SeerUK/tid though!"
        exit 1
    fi

    if test -z "$TID_OS"; then
        echo "Sorry, we it looks like your operating system is unsupported."
        echo "You can always compile the Go source from https://github.com/SeerUK/tid though!"
        exit 1
    fi

    BINARIES="tid tiddate"

    for BINARY in ${BINARIES}; do
        BINARY_RELEASE_URL="https://github.com/SeerUK/tid/releases/download/${TID_VERSION}/${BINARY}_${TID_OS}_${TID_ARCH}"

        echo "Downloading $BINARY $TID_VERSION..."

        BINARY_VERSION_DIR="${TID_BIN_DIR}-${TID_VERSION}"
        BINARY_VERSION_FILE="$BINARY_VERSION_DIR/$BINARY"

        if test "$TID_OS" = "windows"; then
            BINARY_VERSION_FILE="$BINARY_VERSION_FILE.exe"
        fi

        mkdir -p "$BINARY_VERSION_DIR"

        if type "curl" > /dev/null; then
            curl -L "$BINARY_RELEASE_URL" -o "$BINARY_VERSION_FILE"
        elif type "wget" > /dev/null; then
            wget -q -O "$BINARY_VERSION_FILE" "$BINARY_RELEASE_URL"
        fi

        if test "$TID_OS" != "windows"; then
            chmod +x "$BINARY_VERSION_FILE"
        fi

        echo "Linking $BINARY $TID_VERSION..."

        ln -fs "$BINARY_VERSION_FILE" "$TID_BIN_DIR/${BINARY}"
    done

    echo ""
    echo "Installed to '$TID_BIN_DIR'."
    echo "This should be have automatically been added to your path."
    echo "If it hasn't been, make sure you add it manually!"
}

installPath() {
    BASH_LINE="export PATH=\"\$PATH:\$HOME/.tid/bin\""
    FISH_LINE="set -gx PATH \$HOME/.tid/bin \$PATH"
    ZSH_LINE="$BASH_LINE"

    grep -qF "$BASH_LINE" "$HOME/.bashrc" ||
        echo "$BASH_LINE" >> "$HOME/.bashrc"

    grep -qF "$BASH_LINE" "$HOME/.profile" ||
        echo "$BASH_LINE" >> "$HOME/.profile"

    grep -qF "$FISH_LINE" "$HOME/.config/fish/config.fish" ||
        echo "$FISH_LINE" >> "$HOME/.config/fish/config.fish"

    grep -qF "$ZSH_LINE" "$HOME/.zshrc" ||
        echo "$ZSH_LINE" >> "$HOME/.zshrc"
}

prepareArch
prepareOS
prepareTidDir
prepareVersion

installRelease
installPath

# @todo:
# Backup existing data (how do we know where the DB is? parse config for path?)