#!/usr/bin/env bash
# Created by John A. Hoeven with the ethical assistance of Claude AI
# ---------------------------------------------------------------------------
# ce-minimal.sh
# ~/projects/ceos/alpine-installer/ce-minimal.sh
# Version: v0.0.1 | Status: DEVELOPMENT
# Target: Alpine Linux x86-64 (tinkerpad / ThinkPad T480)
# ---------------------------------------------------------------------------
# Tier 1 — Minimal. Full TUI workstation on top of Base.
# Standalone-runnable. Sources lib/ce-common.sh and lib/minimal/*.sh.
# ---------------------------------------------------------------------------

SCRIPT_NAME="ce-minimal"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

source "${SCRIPT_DIR}/lib/ce-common.sh" \
    || { echo "ERROR: lib/ce-common.sh not found"; exit 1; }

for _sub in "${SCRIPT_DIR}"/lib/minimal/*.sh; do
    source "${_sub}" || { log_error "Failed to source: ${_sub}"; exit 1; }
done
unset _sub

cleanup() {
    local exit_code="${?}"
    log_info "Running cleanup..."
    doas apk cache clean >> "${LOG_FILE}" 2>&1 || true
    doas rm -rf /var/cache/apk/* >> "${LOG_FILE}" 2>&1 || true
    log_info "Cleanup complete (exit code: ${exit_code})"
}
trap cleanup EXIT INT TERM HUP

phase_preflight() {
    log_info "=== TIER 1: PRE-FLIGHT ==="
    check_not_root
    run_test "bash >= 4"              '[[ "${BASH_VERSINFO[0]}" -ge 4 ]]'                    fail
    run_test "arch detected"          '[[ -n "${ARCH}" ]]'                                    fail
    run_test "doas present"           'command -v doas >/dev/null 2>&1'                       fail
    run_test "Tier 0 complete"        'command -v curl >/dev/null 2>&1'                       fail
    run_test "community repo enabled" 'grep -q "^[^#].*community" /etc/apk/repositories'     fail
    run_test "internet reachable"     \
        'curl --silent --max-time 10 --output /dev/null https://dl-cdn.alpinelinux.org'      warn
    run_test "disk >= 1GB"            '[[ $(df -kP / | awk "NR==2{print \$4}") -ge 1048576 ]]'    warn
    log_info "Arch: ${ARCH}"
    log_info "Pre-flight complete"
}

phase_install() {
    log_info "=== TIER 1: INSTALL ==="
    doas apk update >> "${LOG_FILE}" 2>&1 \
        && doas apk upgrade >> "${LOG_FILE}" 2>&1 \
        || { log_error "apk update/upgrade failed"; exit 1; }
    run_test "apk functional" 'apk search vim 2>/dev/null | grep -q "^vim"' fail

    install_minimal_shell
    install_minimal_terminal
    install_minimal_files
    install_minimal_vcs
    install_minimal_systools
    install_minimal_comms
    install_minimal_journal
    install_minimal_web
    install_minimal_network
    install_minimal_record
    install_minimal_wiki
    install_minimal_access
}

phase_verify() {
    log_info "=== TIER 1: VERIFY ==="
    local tools=(tmux vim git gpg python3 lynx)
    for tool in "${tools[@]}"; do
        run_test "${tool} present" "command -v ${tool} >/dev/null 2>&1" warn
    done
    run_test "pipx present"      'command -v pipx >/dev/null 2>&1'     warn
    run_test "espeak-ng present" 'command -v espeak-ng >/dev/null 2>&1' warn
    log_info "Tier 1 verify complete"
}

log_info "=== CE OS INSTALLER — TIER 1: MINIMAL ==="
log_info "Arch: ${ARCH} | Log: ${LOG_FILE}"

phase_preflight
confirm_proceed
phase_install
phase_verify
print_summary
review_pause "Tier 1 — Minimal" "${LOG_FILE}"

log_info "=== TIER 1 COMPLETE ==="