#!/bin/bash

# 1. PRECONDITIONS
#
# zsh is expected to be set up.

if [ -z "$(zshc --version 2> /dev/null)" ]; then
    echo "💥 Install zsh (https://www.zsh.org/) before installing environment."
    return
fi

# 2. CONFIGURATION INJECTION

# 2.1 Inject shell configuration.
#
# Adds a managed block to the shell configuration to 
# source extra files on shell-start.
#

BLOCK_DELIMITER_PATTERN="mcataford/env"
WORKING_PATH=$(git rev-parse --show-toplevel)
SHELL_CONFIG_PATH="$HOME/.zshrc"

echo "Setting up shell configuration extras..."
if [[ -z $(cat $SHELL_CONFIG_PATH | grep $BLOCK_DELIMITER_PATTERN) ]]; then
    echo "# $BLOCK_DELIMITER_PATTERN\:start
source $WORKING_PATH/shell_extras
# $BLOCK_DELIMITER_PATTERN\:end" >> $SHELL_CONFIG_PATH
    echo "✅ Added managed block to $SHELL_CONFIG_PATH"
else
    echo "No changes to apply!"
fi

EDITOR_CONFIG=$HOME/.config/nvim
EDITOR_CONFIG_FILE=$EDITOR_CONFIG/init.vim

# 2.2 Inject nvim configuration.
#
# Similarly, sourcing for `extras.vim` is added to the vim configuration
# so plugins, bindings and whatnot are loaded on start.
#

if [[ -f $EDITOR_CONFIG_FILE ]]; then
    echo "Setting up NVIM configuration extras..."
    if [[ -z $(cat $EDITOR_CONFIG_FILE | grep $BLOCK_DELIMITER_PATTERN) ]]; then
        echo "\" $BLOCK_DELIMITER_PATTERN\:start
source $WORKING_PATH/extras.vim
\" $BLOCK_DELIMITER_PATTERN\:end\n\n" >> $EDITOR_CONFIG_FILE.new
        cat $EDITOR_CONFIG_FILE >> $EDITOR_CONFIG_FILE.new

        mv $EDITOR_CONFIG_FILE $EDITOR_CONFIG_FILE.old
        mv $EDITOR_CONFIG_FILE.new $EDITOR_CONFIG_FILE
        echo "✅ Added managed block to $EDITOR_CONFIG_FILE"
    else
        echo "No changes to apply!"
    fi
fi

echo "Setting up git configuration..."
source $WORKING_PATH/git_config
echo "✅ Set up git configuration, see $WORKING_PATH/git_config for details!"