#!/usr/bin/env bash

if [[ -z "${FOSSIL:-}" ]]; then
  FOSSIL=fossil
fi
export FOSSIL

fossil_binary_path() {
  if [[ "$FOSSIL" == */* ]]; then
    if [[ ! -x "$FOSSIL" ]]; then
      printf 'Fossil binary is not executable: %s\n' "$FOSSIL" >&2
      return 1
    fi
    (CDPATH= cd -- "$(dirname -- "$FOSSIL")" && printf '%s/%s\n' "$PWD" "$(basename -- "$FOSSIL")")
  else
    command -v "$FOSSIL"
  fi
}

require_org_fossil() {
  local binary_path
  if ! binary_path=$(fossil_binary_path); then
    printf 'Fossil was not found. Run `make fossil` or set FOSSIL=/path/to/fossil.\n' >&2
    return 1
  fi
  if ! "$FOSSIL" help test-org-render >/dev/null 2>&1; then
    printf 'Fossil at %s has no native Org renderer. Run `make fossil` or set FOSSIL to the patched binary.\n' "$binary_path" >&2
    return 1
  fi
  printf 'Fossil binary: %s\n' "$binary_path"
}

verify_org_mime() {
  local repository=$1
  local mime_result
  mime_result=$("$FOSSIL" test-mimetype -R "$repository" probe.org)
  if [[ "$mime_result" != *"text/x-org"* ]]; then
    printf 'Selected Fossil does not map .org to text/x-org: %s\n' "$mime_result" >&2
    return 1
  fi
  printf 'Org MIME check: text/x-org\n'
}