#!/usr/bin/env bash
# install-larry.sh — bootstrap Larry-Anywhere on a fresh remote shell.
# No root, no package install, no sudo. Writes only into $LARRY_HOME.
#
# Usage:
#   curl -fsSL <BASE_URL>/install-larry.sh | bash
#
# Or with explicit base URL:
#   LARRY_BASE_URL=https://example.com/larry-anywhere bash install-larry.sh
#
# Env vars:
#   LARRY_HOME       install location  (default: $HOME/.larry)
#   LARRY_BASE_URL   where to fetch files from (no trailing slash)
#   LARRY_BIN_DIR    where to symlink the `larry` command (default: $HOME/bin)
set -eu

LARRY_HOME="${LARRY_HOME:-$HOME/.larry}"
# Canonical hosting: bojj27/cloverleaf-larry on GitHub, branch main, raw view.
# Override via env if you fork or mirror elsewhere.
LARRY_BASE_URL="${LARRY_BASE_URL:-https://raw.githubusercontent.com/bojj27/cloverleaf-larry/main}"
LARRY_BIN_DIR="${LARRY_BIN_DIR:-$HOME/bin}"

C_RESET=$'\033[0m'; C_BOLD=$'\033[1m'; C_GREEN=$'\033[32m'
C_YELLOW=$'\033[33m'; C_RED=$'\033[31m'; C_CYAN=$'\033[36m'

say()  { printf '%s%sinstall-larry>%s %s\n' "$C_CYAN" "$C_BOLD" "$C_RESET" "$*"; }
ok()   { printf '  %s✓%s %s\n' "$C_GREEN" "$C_RESET" "$*"; }
warn() { printf '  %s!%s %s\n' "$C_YELLOW" "$C_RESET" "$*"; }
die()  { printf '%serror:%s %s\n' "$C_RED" "$C_RESET" "$*" >&2; exit 1; }

# ─────────────────────────────────────────────────────────────────────────────
# Detect platform
# ─────────────────────────────────────────────────────────────────────────────
UNAME_S="$(uname -s 2>/dev/null || echo unknown)"
PLATFORM=""
case "$UNAME_S" in
  Linux*)        PLATFORM="linux" ;;
  Darwin*)       PLATFORM="darwin" ;;
  CYGWIN*|MINGW*|MSYS*) PLATFORM="windows-cygwin" ;;  # MobaXterm lives here
  *)             PLATFORM="unknown" ;;
esac

ARCH="$(uname -m 2>/dev/null || echo unknown)"
case "$ARCH" in
  x86_64|amd64) ARCH_NORM="amd64" ;;
  aarch64|arm64) ARCH_NORM="arm64" ;;
  i?86)         ARCH_NORM="i386" ;;
  *)            ARCH_NORM="$ARCH" ;;
esac

say "platform: $PLATFORM/$ARCH_NORM  •  LARRY_HOME=$LARRY_HOME"

# ─────────────────────────────────────────────────────────────────────────────
# Check required commands
# ─────────────────────────────────────────────────────────────────────────────
command -v bash >/dev/null 2>&1 || die "bash not found"
command -v curl >/dev/null 2>&1 || die "curl not found"

# ─────────────────────────────────────────────────────────────────────────────
# Make dirs
# ─────────────────────────────────────────────────────────────────────────────
mkdir -p "$LARRY_HOME"/{agents,sessions,bin,lib} || die "cannot create $LARRY_HOME"
chmod 700 "$LARRY_HOME" 2>/dev/null || true
ok "created $LARRY_HOME"

# ─────────────────────────────────────────────────────────────────────────────
# Fetch the scripts. If LARRY_BASE_URL is not set, try to detect being run
# from a local checkout (sibling files present) — copy locally instead.
# ─────────────────────────────────────────────────────────────────────────────
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" 2>/dev/null && pwd)" || SCRIPT_DIR=""

fetch() {
  # $1 = remote relative path, $2 = local destination
  if [ -n "$LARRY_BASE_URL" ]; then
    say "fetching $1"
    curl -fsSL --max-time 30 "$LARRY_BASE_URL/$1" -o "$2" \
      && ok "$2" || die "failed to fetch $1"
  elif [ -n "$SCRIPT_DIR" ] && [ -f "$SCRIPT_DIR/$1" ]; then
    cp "$SCRIPT_DIR/$1" "$2" && ok "copied $1 (local)"
  else
    die "no LARRY_BASE_URL set and $1 not found in script dir"
  fi
}

fetch larry.sh                       "$LARRY_HOME/larry.sh"
fetch larry-tunnel.sh                "$LARRY_HOME/larry-tunnel.sh"
fetch agents/larry.md                "$LARRY_HOME/agents/larry.md"
fetch agents/clover.md               "$LARRY_HOME/agents/clover.md"
fetch agents/cloverleaf-cheatsheet.md "$LARRY_HOME/agents/cloverleaf-cheatsheet.md"
fetch agents/regress.md              "$LARRY_HOME/agents/regress.md"
fetch larry-rollback.sh              "$LARRY_HOME/larry-rollback.sh"
fetch larry-auth.sh                  "$LARRY_HOME/larry-auth.sh"
fetch lib/oauth.sh                   "$LARRY_HOME/lib/oauth.sh"
fetch lib/lessons.sh                 "$LARRY_HOME/lib/lessons.sh"
fetch lib/hl7-sanitize.sh            "$LARRY_HOME/lib/hl7-sanitize.sh"
fetch lib/hl7-desanitize.sh          "$LARRY_HOME/lib/hl7-desanitize.sh"
fetch lib/each.sh                    "$LARRY_HOME/lib/each.sh"
fetch lib/each-site.sh               "$LARRY_HOME/lib/each-site.sh"
fetch lib/len2nl.sh                  "$LARRY_HOME/lib/len2nl.sh"
fetch lib/csv-to-table.sh            "$LARRY_HOME/lib/csv-to-table.sh"
fetch lib/table-to-csv.sh            "$LARRY_HOME/lib/table-to-csv.sh"
fetch lib/nc-parse.sh                "$LARRY_HOME/lib/nc-parse.sh"
fetch lib/nc-inbound.sh              "$LARRY_HOME/lib/nc-inbound.sh"
fetch lib/nc-make-jump.sh            "$LARRY_HOME/lib/nc-make-jump.sh"
fetch lib/hl7-field.sh               "$LARRY_HOME/lib/hl7-field.sh"
fetch lib/nc-msgs.sh                 "$LARRY_HOME/lib/nc-msgs.sh"
fetch lib/nc-document.sh             "$LARRY_HOME/lib/nc-document.sh"
fetch lib/nc-diff-interface.sh       "$LARRY_HOME/lib/nc-diff-interface.sh"
fetch lib/nc-find.sh                 "$LARRY_HOME/lib/nc-find.sh"
fetch lib/nc-insert-protocol.sh      "$LARRY_HOME/lib/nc-insert-protocol.sh"
fetch lib/hl7-diff.sh                "$LARRY_HOME/lib/hl7-diff.sh"
fetch lib/nc-regression.sh           "$LARRY_HOME/lib/nc-regression.sh"
fetch lib/journal.sh                 "$LARRY_HOME/lib/journal.sh"
fetch VERSION                        "$LARRY_HOME/VERSION"
fetch MANUAL.md                      "$LARRY_HOME/MANUAL.md"
chmod +x "$LARRY_HOME/larry.sh" "$LARRY_HOME/larry-tunnel.sh" "$LARRY_HOME/larry-rollback.sh" "$LARRY_HOME/larry-auth.sh" "$LARRY_HOME/lib/"*.sh

# ─────────────────────────────────────────────────────────────────────────────
# jq fallback — download static binary into $LARRY_HOME/bin/ if missing
# ─────────────────────────────────────────────────────────────────────────────
if ! command -v jq >/dev/null 2>&1 && [ ! -x "$LARRY_HOME/bin/jq" ]; then
  say "jq not found — fetching static binary into $LARRY_HOME/bin/jq"
  JQ_BASE="https://github.com/jqlang/jq/releases/download/jq-1.7.1"
  JQ_URL=""
  case "$PLATFORM/$ARCH_NORM" in
    linux/amd64)         JQ_URL="$JQ_BASE/jq-linux-amd64" ;;
    linux/arm64)         JQ_URL="$JQ_BASE/jq-linux-arm64" ;;
    linux/i386)          JQ_URL="$JQ_BASE/jq-linux-i386" ;;
    darwin/amd64)        JQ_URL="$JQ_BASE/jq-macos-amd64" ;;
    darwin/arm64)        JQ_URL="$JQ_BASE/jq-macos-arm64" ;;
    windows-cygwin/amd64) JQ_URL="$JQ_BASE/jq-windows-amd64.exe" ;;
    windows-cygwin/i386)  JQ_URL="$JQ_BASE/jq-windows-i386.exe" ;;
    *) warn "no jq binary known for $PLATFORM/$ARCH_NORM — install jq manually" ;;
  esac
  if [ -n "$JQ_URL" ]; then
    local_jq="$LARRY_HOME/bin/jq"
    case "$PLATFORM" in windows-cygwin) local_jq="$LARRY_HOME/bin/jq.exe" ;; esac
    if curl -fsSL --max-time 60 "$JQ_URL" -o "$local_jq"; then
      chmod +x "$local_jq"
      ok "jq -> $local_jq"
    else
      warn "could not download jq from $JQ_URL"
    fi
  fi
else
  ok "jq available"
fi

# ─────────────────────────────────────────────────────────────────────────────
# Drop a `larry` shim onto PATH (best-effort)
# ─────────────────────────────────────────────────────────────────────────────
mkdir -p "$LARRY_BIN_DIR" 2>/dev/null || true
if [ -d "$LARRY_BIN_DIR" ] && [ -w "$LARRY_BIN_DIR" ]; then
  cat > "$LARRY_BIN_DIR/larry" <<EOF
#!/usr/bin/env bash
# Auto-generated by install-larry.sh
export LARRY_HOME="${LARRY_HOME}"
exec "${LARRY_HOME}/larry.sh" "\$@"
EOF
  chmod +x "$LARRY_BIN_DIR/larry"
  ok "shim: $LARRY_BIN_DIR/larry"
  case ":$PATH:" in
    *":$LARRY_BIN_DIR:"*) : ;;
    *) warn "$LARRY_BIN_DIR is not on PATH — add 'export PATH=\"$LARRY_BIN_DIR:\$PATH\"' to your shell rc" ;;
  esac
else
  warn "cannot write to $LARRY_BIN_DIR — invoke larry directly as: $LARRY_HOME/larry.sh"
fi

# ─────────────────────────────────────────────────────────────────────────────
# Done
# ─────────────────────────────────────────────────────────────────────────────
echo ""
say "install complete (no system changes were made; everything lives under $LARRY_HOME)"
echo ""
echo "Next steps:"
echo "  1) export ANTHROPIC_API_KEY=sk-ant-...   (or larry will prompt on first run)"
echo "  2) larry                                  (or $LARRY_HOME/larry.sh)"
echo "  3) larry /path/to/cloverleaf/site_root   (to start with a working dir)"
echo ""
echo "Reverse SSH tunnel (optional, run in another shell or backgrounded):"
echo "  $LARRY_HOME/larry-tunnel.sh --serveo                          # zero-config"
echo "  $LARRY_HOME/larry-tunnel.sh --hop=user@bjnoela.com:22         # your hop"
echo ""