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_id/lancelot:10/QP1A.190711.020/V11.0.3.0.QJCIDXM:user/release-keys");
ui_print("Target: Redmi/lancelot_id/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCIDXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot_id/lancelot:10/QP1A.190711.020/V11.0.3.0.QJCIDXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot_id/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCIDXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot_id/lancelot:10/QP1A.190711.020/V11.0.3.0.QJCIDXM:user/release-keys or Redmi/lancelot_id/lancelot:10/QP1A.190711.020/V11.0.6.0.QJCIDXM: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:67108864:590169ef49eba68d334ee7c000262fbe6e609a31",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:734263a39a864b491937f9899f751da2ee6c966d") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:590169ef49eba68d334ee7c000262fbe6e609a31\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:734263a39a864b491937f9899f751da2ee6c966d\" 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:58973520:12c6e401993f76b52d72ea752a9f676c0e75c24a",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:57848784:32971f177bde18bec0865ef02dbba404358fd1bc") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:58973520:12c6e401993f76b52d72ea752a9f676c0e75c24a\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:57848784:32971f177bde18bec0865ef02dbba404358fd1bc\" has unexpected contents.");
apply_patch_space(58973520) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "28,1,32770,32924,98306,98460,163842,163996,229378,229532,294914,295068,388035,388062,478896,482699,511841,519879,534300,534302,534306,534308,622607,622612,629117,631025,641024,641163,641164") == "3f0b1941b7542eae1f0b528e0a88bf4161524b00" || 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"), "28,1,32770,32924,98306,98460,163842,163996,229378,229532,294914,295068,388035,388062,478896,482699,511841,519879,534300,534302,534306,534308,622607,622612,629117,631025,641024,641163,641164") && 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"), "42,1,5644,5647,11422,16010,16011,18408,32083,32084,32770,32808,42868,42877,51312,51326,57382,57397,72305,72311,72317,72328,73482,73633,73952,73957,98306,98344,115650,115663,131101,131102,143090,143110,154613,154615,154655,154667,156300,156827,159315,159361,159362") == "1e2953cec9711c07c4caf18e7934e09e5d67b57d" || 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"), "42,1,5644,5647,11422,16010,16011,18408,32083,32084,32770,32808,42868,42877,51312,51326,57382,57397,72305,72311,72317,72328,73482,73633,73952,73957,98306,98344,115650,115663,131101,131102,143090,143110,154613,154615,154655,154667,156300,156827,159315,159361,159362") && 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"), "20,1,32770,32826,64148,64280,64282,64290,98306,98362,163842,163898,229378,229434,229439,229441,231743,232444,236129,236191,236192") == "550518b716da90b7d143fae039a7cf338d34cac7" || 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"), "20,1,32770,32826,64148,64280,64282,64290,98306,98362,163842,163898,229378,229434,229439,229441,231743,232444,236129,236191,236192") && 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:67108864:590169ef49eba68d334ee7c000262fbe6e609a31",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:734263a39a864b491937f9899f751da2ee6c966d",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:734263a39a864b491937f9899f751da2ee6c966d");
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.");

# 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.");

# 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.");

# --- 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:58973520:12c6e401993f76b52d72ea752a9f676c0e75c24a",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:57848784:32971f177bde18bec0865ef02dbba404358fd1bc",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:57848784:32971f177bde18bec0865ef02dbba404358fd1bc");
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();
