#!/bin/sh
set -eu

repo="gigirassy/riptide"
base="https://codeberg.org/$repo"

green="$(printf '\033[1;32m')"
red="$(printf '\033[1;31m')"
blue="$(printf '\033[1;34m')"
reset="$(printf '\033[0m')"

info() {
    printf "%s[+]%s %s\n" "$green" "$reset" "$*"
}

step() {
    printf "%s[*]%s %s\n" "$blue" "$reset" "$*"
}

error() {
    printf "%s[-]%s %s\n" "$red" "$reset" "$*" >&2
}

tmpdir="$(mktemp -d)"
trap 'rm -rf "$tmpdir"' EXIT

if command -v run0 >/dev/null 2>&1; then
    asroot="run0"
elif command -v doas >/dev/null 2>&1; then
    asroot="doas"
elif command -v sudo >/dev/null 2>&1; then
    asroot="sudo"
else
    error "run0, doas, or sudo is required"
    exit 1
fi

step "fetching latest release information..."

release_page="$(curl -fsSL "$base/releases/latest")"

version="$(
    printf '%s' "$release_page" |
    grep -oE '/releases/tag/[0-9]+\.[0-9]+\.[0-9]+' |
    head -n1 |
    sed 's|.*/||'
)"

[ -n "$version" ] || {
    error "failed to determine latest version!"
    exit 1
}

checksum="$(
    printf '%s' "$release_page" |
    grep -E '^[a-f0-9]{64}[[:space:]]+riptide$' |
    awk '{print $1}'
)"

[ -n "$checksum" ] || {
    error "failed to locate checksum!"
    exit 1
}

url="$base/releases/download/$version/riptide"

info "latest version is $version!"

step "downloading riptide..."

curl -fsSL "$url" -o "$tmpdir/riptide"

step "verifying checksum..."

printf '%s  %s\n' "$checksum" "$tmpdir/riptide" | sha256sum -c - >/dev/null

info "checksum verified!"

chmod 755 "$tmpdir/riptide"

step "installing to /usr/local/bin/riptide"
step "authentication may be required ($asroot)"

"$asroot" install -m 755 "$tmpdir/riptide" /usr/local/bin/riptide

info "riptide $version installed successfully <3 have a nice day"