#!/bin/bash

# Bookstack stores users in MySQL/SQLite via Laravel/Eloquent. We use
# `php artisan tinker` to call the same User model the web UI does, so
# password hashing + role assignment match exactly what Bookstack expects.

_bookstackArtisan() {
    local container="bookstack"
    local php_body="$1"
    shift
    sudo docker exec -i -w /app/www "$@" "$container" php artisan tinker --execute="$php_body" 2>&1
}

authAdapter_bookstack_setPassword() {
    local email="$1" password="$2"
    [[ -z "$email" ]] && { isError "Email is required."; return 1; }
    [[ -z "$password" ]] && password=$(generateRandomPassword)

    local out
    out=$(_bookstackArtisan '
        $u = \BookStack\Users\Models\User::where("email", getenv("EZ_EMAIL"))->first();
        if (!$u) { echo "EZ_USER_NOT_FOUND"; exit; }
        $u->password = bcrypt(getenv("EZ_PASS"));
        $u->save();
        echo "EZ_RESET_OK:" . $u->name;
    ' -e "EZ_EMAIL=$email" -e "EZ_PASS=$password")
    if echo "$out" | grep -q EZ_USER_NOT_FOUND; then
        isError "No Bookstack user with email '$email'."; return 1
    fi
    if ! echo "$out" | grep -q EZ_RESET_OK; then
        isError "Bookstack reset failed: $out"; return 1
    fi

    if [[ "$email" == "${CFG_BOOKSTACK_ADMIN_USER:-}" ]]; then
        authPersistCfg bookstack ADMIN_PASSWORD "$password"
    fi
    isSuccessful "Bookstack password set for $email — New password: $password"
}

authAdapter_bookstack_createUser() {
    local email="$1" password="$2" name="$3" isAdmin="$4"
    [[ -z "$email" ]] && { isError "Email is required."; return 1; }
    [[ -z "$name"  ]] && name="${email%@*}"
    [[ -z "$password" ]] && password=$(generateRandomPassword)
    local roleSlug="public"
    [[ "$isAdmin" == "true" ]] && roleSlug="admin"

    local out
    out=$(_bookstackArtisan '
        if (\BookStack\Users\Models\User::where("email", getenv("EZ_EMAIL"))->exists()) { echo "EZ_USER_EXISTS"; exit; }
        $u = new \BookStack\Users\Models\User();
        $u->name = getenv("EZ_NAME"); $u->email = getenv("EZ_EMAIL");
        $u->password = bcrypt(getenv("EZ_PASS")); $u->email_confirmed = true;
        $base = preg_replace("/[^a-z0-9]+/", "-", strtolower($u->name ?: explode("@", $u->email)[0]));
        $base = trim($base, "-"); if ($base === "") $base = "user";
        $slug = $base; $i = 1;
        while (\BookStack\Users\Models\User::where("slug", $slug)->exists()) { $i++; $slug = $base . "-" . $i; }
        $u->slug = $slug;
        $u->save();
        $role = \BookStack\Users\Models\Role::where("system_name", getenv("EZ_ROLE"))->first();
        if ($role) $u->attachRole($role);
        echo "EZ_USER_CREATED:" . $u->id;
    ' -e "EZ_EMAIL=$email" -e "EZ_NAME=$name" -e "EZ_PASS=$password" -e "EZ_ROLE=$roleSlug")
    if echo "$out" | grep -q EZ_USER_EXISTS; then isError "User '$email' already exists."; return 1; fi
    if ! echo "$out" | grep -q EZ_USER_CREATED; then isError "Bookstack create failed: $out"; return 1; fi

    if [[ "$isAdmin" == "true" && -z "${CFG_BOOKSTACK_ADMIN_USER:-}" ]]; then
        authPersistCfg bookstack ADMIN_USER "$email"
        authPersistCfg bookstack ADMIN_PASSWORD "$password"
    fi
    isSuccessful "Bookstack user created — Email: $email — Password: $password"
}

authAdapter_bookstack_listUsers() {
    _bookstackArtisan '
        foreach (\BookStack\Users\Models\User::all() as $u) {
            $roles = $u->roles->pluck("display_name")->join(",");
            echo "EZ_USER\t" . $u->email . "\t" . $u->name . "\t" . ($roles ?: "—") . "\n";
        }
    '
}

authAdapter_bookstack_deleteUser() {
    local email="$1"
    [[ -z "$email" ]] && { isError "Email is required."; return 1; }
    local out
    out=$(_bookstackArtisan '
        $u = \BookStack\Users\Models\User::where("email", getenv("EZ_EMAIL"))->first();
        if (!$u) { echo "EZ_USER_NOT_FOUND"; exit; }
        $u->delete();
        echo "EZ_USER_DELETED";
    ' -e "EZ_EMAIL=$email")
    echo "$out" | grep -q EZ_USER_NOT_FOUND && { isError "No Bookstack user with email '$email'."; return 1; }
    echo "$out" | grep -q EZ_USER_DELETED  || { isError "Bookstack delete failed: $out"; return 1; }
    isSuccessful "Bookstack user '$email' deleted."
}

authAdapter_bookstack_setAdmin() {
    local email="$1" isAdmin="$2"
    [[ -z "$email" ]] && { isError "Email is required."; return 1; }
    local target="${isAdmin}"; [[ "$target" != "true" ]] && target="false"
    local out
    out=$(_bookstackArtisan '
        $u = \BookStack\Users\Models\User::where("email", getenv("EZ_EMAIL"))->first();
        if (!$u) { echo "EZ_USER_NOT_FOUND"; exit; }
        $admin = \BookStack\Users\Models\Role::where("system_name", "admin")->first();
        if (!$admin) { echo "EZ_ROLE_NOT_FOUND"; exit; }
        if (getenv("EZ_TARGET") === "true") { $u->attachRole($admin); }
        else { $u->detachRole($admin); }
        echo "EZ_OK";
    ' -e "EZ_EMAIL=$email" -e "EZ_TARGET=$target")
    echo "$out" | grep -q EZ_USER_NOT_FOUND && { isError "No Bookstack user '$email'."; return 1; }
    echo "$out" | grep -q EZ_OK             || { isError "Bookstack role change failed: $out"; return 1; }
    isSuccessful "Bookstack user '$email' admin → $target."
}