#!/usr/bin/env bash
set -e

BIFROST_PATH=${BIFROST_PATH:-"$HOME/.bifrost"}
BIFROST_BIN_DIR="$BIFROST_PATH/bin"

BIFROST_BINARY="https://raw.githubusercontent.com/Jon-Becker/heimdall-rs/main/bifrost/bifrost"

# Create the bifrost directory and install the bifrost executable in it.
mkdir -p $BIFROST_BIN_DIR
curl -# -L $BIFROST_BINARY -o "$BIFROST_BIN_DIR/bifrost"
chmod +x "$BIFROST_BIN_DIR/bifrost"

# Only add bifrost to the path if it's not already there.
if [[ ":$PATH:" != *":${BIFROST_BIN_DIR}:"* ]]; then

    # Detect the current shell being used for the installation
    case $SHELL in
        */zsh)
            SHELL_PROFILE=$HOME/.zshrc
            echo >> $SHELL_PROFILE && echo "export PATH=\"\$PATH:$BIFROST_BIN_DIR\"" >> $SHELL_PROFILE
            ;;
        */bash)
            # Only append to bash profiles that already exist. Using `>>` on a
            # missing ~/.bash_profile would create it, and bash login shells then
            # read it instead of ~/.profile, silently dropping the user's startup
            # configuration (see issue #707).
            for SHELL_PROFILE in "$HOME/.bashrc" "$HOME/.bash_profile"; do
                [ -f "$SHELL_PROFILE" ] || continue
                echo >> "$SHELL_PROFILE" && echo "export PATH=\"\$PATH:$BIFROST_BIN_DIR\"" >> "$SHELL_PROFILE"
            done
            ;;
        */fish)
            SHELL_PROFILE=$HOME/.config/fish/config.fish
            echo >> $SHELL_PROFILE && echo "export PATH=\"\$PATH:$BIFROST_BIN_DIR\"" >> $SHELL_PROFILE
            ;;
        *)
            echo "bifrost: Look's like you're using a shell that is not recognized by bifrost. Please manually add ${BIFROST_BIN_DIR} to your PATH."
            exit 1
    esac

fi

echo && echo "bifrost: Installation complete."
echo "Open a new terminal and run 'bifrost' to install Heimdall."