getprop("ro.product.device") == "lancelot" || abort("E3004: This package is for \"lancelot\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCEUXM:user/release-keys");
ui_print("Target: Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.5.0.QJCEUXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCEUXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.5.0.QJCEUXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCEUXM:user/release-keys or Redmi/lancelot_eea/lancelot:10/QP1A.190711.020/V11.0.5.0.QJCEUXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 10);
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:64d8b17330b42b72dc53c7bbf90a3133960db28a",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:95140bf822bac5f86e3536d11f892993982d9433") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:64d8b17330b42b72dc53c7bbf90a3133960db28a\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:95140bf822bac5f86e3536d11f892993982d9433\" has unexpected contents.");
apply_patch_space(67108864) || abort("E3006: Not enough free space on /cache to apply patches.");
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:58981184:b05380fce694c1624704d7571ee022dff997bbed",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:58993296:b1c8c72d0ae482d8ffbeb66489a1097546eda4b7") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:58981184:b05380fce694c1624704d7571ee022dff997bbed\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:58993296:b1c8c72d0ae482d8ffbeb66489a1097546eda4b7\" has unexpected contents.");
apply_patch_space(58981184) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "28,1,185,193,196,213,220,470,474,490,491,2218,32770,32918,98306,98454,163842,163990,229378,229526,294914,295062,589837,589845,604861,606696,616310,616442,616443") == "f4cfeedbdcfdd6483e023e22f88dc16787d5be39" || block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block(map_partition("system"));
ifelse (block_image_recover(map_partition("system"), "28,1,185,193,196,213,220,470,474,490,491,2218,32770,32918,98306,98454,163842,163990,229378,229526,294914,295062,589837,589845,604861,606696,616310,616442,616443") && block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1(map_partition("vendor"), "38,1,5644,5647,11425,16013,16014,18411,32050,32051,32770,32808,42839,42848,51283,51297,57355,57370,72281,72287,72293,72304,98306,98344,114518,114531,131101,131102,141991,142011,153516,153518,153558,153570,155203,155722,158193,158239,158240") == "31ba4a15d1474ace7f62765a0d56bc95774f7dd9" || block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block(map_partition("vendor"));
ifelse (block_image_recover(map_partition("vendor"), "38,1,5644,5647,11425,16013,16014,18411,32050,32051,32770,32808,42839,42848,51283,51297,57355,57370,72281,72287,72293,72304,98306,98344,114518,114531,131101,131102,141991,142011,153516,153518,153558,153570,155203,155722,158193,158239,158240") && block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;
if (range_sha1(map_partition("product"), "46,1,81,5371,5372,9641,9645,11765,11768,13898,13899,14456,14462,14479,14480,20719,20720,23127,23128,23492,23496,24003,24004,24016,24020,24024,24025,25865,25869,27306,32770,32834,98306,98370,163842,163906,229378,229442,229447,229449,262145,262151,263387,264183,268372,268440,268441") == "155343d82cb602c05d9f2b9d25b8536073838089" || block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat")) then
ui_print("Verified product image...");
else
ifelse (block_image_recover(map_partition("product"), "46,1,81,5371,5372,9641,9645,11765,11768,13898,13899,14456,14462,14479,14480,20719,20720,23127,23128,23492,23496,24003,24004,24016,24020,24024,24025,25865,25869,27306,32770,32834,98306,98370,163842,163906,229378,229442,229447,229449,262145,262151,263387,264183,268372,268440,268441") && block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat"), ui_print("product recovered successfully."), abort("E2004: product partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:64d8b17330b42b72dc53c7bbf90a3133960db28a",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:95140bf822bac5f86e3536d11f892993982d9433",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:95140bf822bac5f86e3536d11f892993982d9433");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# Patch partition vendor

ui_print("Patching vendor image after verification.");
block_image_update(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# Update dynamic partition metadata

assert(update_dynamic_partitions(package_extract_file("dynamic_partitions_op_list")));

# Patch partition product

ui_print("Patching product image after verification.");
block_image_update(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat") ||
  abort("E2001: Failed to update product image.");

# Patch partition system

ui_print("Patching system image after verification.");
block_image_update(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");

# --- End patching dynamic partitions ---

show_progress(0.100000, 2);
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("logo.bin", "/dev/block/platform/bootdevice/by-name/logo");
package_extract_file("dtbo.img", "/dev/block/platform/bootdevice/by-name/dtbo");
package_extract_file("exaid.img", "/dev/block/platform/bootdevice/by-name/exaid");
ui_print("Patching md1img image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/md1img:58981184:b05380fce694c1624704d7571ee022dff997bbed",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:58993296:b1c8c72d0ae482d8ffbeb66489a1097546eda4b7",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:58993296:b1c8c72d0ae482d8ffbeb66489a1097546eda4b7");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot1"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot1"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("scp1", "scp2");
switch_active("lk", "lk2");
switch_active("tee1", "tee2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot0"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot0"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("scp2", "scp1");
switch_active("lk2", "lk");
switch_active("tee2", "tee1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta_system.img", "/dev/block/platform/bootdevice/by-name/vbmeta_system");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
package_extract_file("vbmeta_vendor.img", "/dev/block/platform/bootdevice/by-name/vbmeta_vendor");
post_ota_action();
