#!/usr/bin/env bash

source $(dirname ${BASH_SOURCE[0]})/../../tests/utils.sh
source $(dirname ${BASH_SOURCE[0]})/utils.sh

default_entry() {
    cat <<EOS
---
[imag]
links = []
version = "0.2.0"
---

EOS
}

entry_linked_to() {
    cat <<EOS
---
[imag]
links = [$1]
version = "0.2.0"
---

EOS
}

mktestentry() {
    mkdir -p ${STORE}
    default_entry > ${STORE}/$1
}

test_link_modificates() {
    mktestentry "test"
    mktestentry "test2"

    imag-link internal add --from "test" --to "test2"

    if [ "$(default_entry)" == "$(cat_entry 'test')" ] ||
       [ "$(default_entry)" == "$(cat_entry 'test2')" ]
    then
        err "Entry was unmodified after linking"
        return 1;
    fi
}

test_linking_links() {
    mktestentry "test"
    mktestentry "test2"

    imag-link internal add --from "test" --to "test2"

    if [[ "$(entry_linked_to '"test"')" != "$(cat_entry 'test2')" ]];
    then
        err "Linking to 'test' didn't succeed for 'test2'"
        err "\n$(cat_entry 'test2')\n"
    fi

    if [[ "$(entry_linked_to '"test2"')" != "$(cat_entry 'test')" ]];
    then
        err "Linking to 'test2' didn't succeed for 'test'"
        err "\n$(cat_entry 'test')\n"
    fi
}

test_multilinking() {
    mktestentry "test"
    mktestentry "test2"

    imag-link internal add --from "test" --to "test2" || {
        err "Linking failed"; return 1
    }

    imag-link internal add --from "test" --to "test2" || {
        err "Linking again failed"; return 1
    }

    local linked_to_test="$(entry_linked_to '"test"' | sha1sum)"
    local linked_to_test2="$(entry_linked_to '"test2"' | sha1sum)"
    local t2="$(cat_entry 'test2' | sha1sum)"
    local t1="$(cat_entry 'test' | sha1sum)"

    if [ "${linked_to_test}" != "${t2}" ];
    then
        err "Linking twice to 'test' didn't result in the expected output for 'test2'"
        err "\n$(cat_entry 'test2')\n"
    fi

    if [ "${linked_to_test2}" != "${t1}" ];
    then
        err "Linking twice to 'test2' didn't result in the expected output for 'test'"
        err "\n$(cat_entry 'test')\n"
    fi
}

invoke_tests            \
    test_link_modificates \
    test_linking_links \
    test_multilinking